#linuxcnc | Logs for 2014-10-20

[00:04:37] -!- tjtr33 [tjtr33!~tjtr33@c-67-162-58-61.hsd1.il.comcast.net] has joined #linuxcnc
[00:10:05] -!- nofxx [nofxx!~nofxx@] has joined #linuxcnc
[00:10:05] -!- nofxx has quit [Changing host]
[00:10:05] -!- nofxx [nofxx!~nofxx@unaffiliated/nofxx] has joined #linuxcnc
[00:12:48] -!- Nick001-shop has quit [Quit: ChatZilla 0.9.91 [Firefox 30.0/20140605174243]]
[00:13:17] -!- nofxx has quit [Read error: Connection reset by peer]
[00:15:38] -!- Roguish has quit [Quit: ChatZilla 0.9.91 [Firefox 33.0/20141011015303]]
[00:37:22] amnesic_away is now known as amnesic
[00:38:59] -!- micges-dev has quit [Quit: Wychodzi]
[00:47:01] amnesic is now known as amnesic_away
[00:50:21] -!- The_Ball [The_Ball!~ballen@] has joined #linuxcnc
[00:50:40] <zeeshan> what a mission
[00:50:45] <zeeshan> to move this mill without a forklift
[00:50:45] <zeeshan> http://i.imgur.com/EfFQS7a.jpg
[00:50:58] <zeeshan> pushed it to the back of the garage to free up some space
[00:54:11] <jdh> lose thecar
[00:54:30] <ssi> that's what I said
[00:54:33] <ssi> garages aren't for cars
[00:54:44] <zeeshan> why
[00:54:46] <zeeshan> i got tons of space now
[00:54:48] <zeeshan> =D
[00:54:54] <zeeshan> ssi
[00:54:57] <zeeshan> did you get those drives?
[00:55:03] <ssi> no
[00:55:04] <zeeshan> still scheduled for monday?
[00:55:07] <zeeshan> i couldnt wait
[00:55:13] <zeeshan> i ordered 5!
[00:55:20] <zeeshan> i hope they're functional
[00:56:17] <pfred1> zeeshan that's a big mill what are you making on it?
[00:56:26] <ssi> thought experiment
[00:56:32] <CaptHindsight> when did you Canucks start getting right hand drive cars? :0
[00:56:32] <ssi> if I have a 3000 line encoder on an 8 pole motor
[00:56:34] <zeeshan> converting it right now
[00:56:46] <zeeshan> CaptHindsight: thats my race car :D
[00:56:49] <CaptHindsight> or is that a trainer?
[00:56:51] <ssi> then I should have 750 lines per electrical revolution
[00:57:11] <ssi> there's six hall states per electrical rev, so 125 lines per hall state
[00:57:14] <ssi> sound reasonable?
[00:57:50] -!- koo5 has quit [Ping timeout: 258 seconds]
[00:58:15] <zeeshan> 8 pole = 4 position
[00:58:26] <zeeshan> 750per rev
[00:58:32] * zeeshan doesnt know shit about hall states :(
[00:58:46] <zeeshan> those were the seconds
[00:58:51] <zeeshan> sensors that are 120 degrees apart
[00:59:27] <zeeshan> ssi i found an encoder on my spindle
[00:59:30] <zeeshan> 15 slot disk on it
[00:59:37] <zeeshan> i dont see an index slot
[00:59:46] <ssi> probably just a speed sensor
[00:59:46] <zeeshan> just 1 encoder with 3 wires coming out
[00:59:54] <zeeshan> :(
[01:00:17] <zeeshan> i really want a quadrature encoder on it
[01:01:16] <pfred1> I have a little benchtop mill/drill and i use it manually a lot but I couldn't imagine what I'd do with it CNCed
[01:02:02] <pfred1> I just have no call for that kind of parts really
[01:02:15] <zeeshan> you can make faces
[01:02:30] <zeeshan> pfred1: the goal wit hthe machine is to make ring gears, car related parts
[01:03:22] <pfred1> ring gears like for a differential?
[01:03:27] <zeeshan> yessir
[01:03:40] <pfred1> hmmm I thought those were easy enough to come by
[01:03:46] <zeeshan> depends on the application
[01:04:03] <pfred1> yeah there is a lot to setting gears up
[01:04:18] <pfred1> getting the heel right I think it is called?
[01:04:46] <zeeshan> different people call it different things
[01:04:53] <zeeshan> but i think youre talking about when you throw some paint on the gear
[01:04:57] <zeeshan> and check how its contacting
[01:05:01] <pfred1> yes
[01:05:02] <zeeshan> and adjust the preload accordingly
[01:05:14] <pfred1> it can be tricky stuff
[01:05:35] <zeeshan> the problem on the rx7 is, the spider gears in the helical lsd
[01:05:37] <zeeshan> tend to blow up
[01:05:40] <zeeshan> cause it's cast garbage
[01:05:50] <zeeshan> id like to make them out of 300m or 4340
[01:05:50] <pfred1> then put a different rear end into it
[01:05:52] <zeeshan> and case harden
[01:05:58] <zeeshan> no, thats the whole thing
[01:06:04] <zeeshan> i want to make a solution for the guys that dont wanna replace their whole rear end
[01:06:11] <pfred1> oh
[01:06:15] <zeeshan> a cobra 8.8 rear end costs like about 4000 by the time youre done
[01:06:21] <pfred1> well good luck finding jokers that can install gears right
[01:06:29] <zeeshan> a differential rebuild even if it costs 900 is worth it
[01:07:08] <pfred1> yeah I guess they can take the parts someplace and have someone that knows what they're doing do it for them
[01:07:53] <zeeshan> food time!
[01:08:24] <ssi> I'm not sure how to accurately locate the count to the index pulse in both directions
[01:08:29] <ssi> since it seems like index spans several lines
[01:08:52] <ssi> I guess I should take rising edge of index in one direction, and falling edge in the other, or something
[01:11:42] <ssi> turning cw, index rises with A low and B high
[01:12:14] <zeeshan> ssi
[01:12:15] <ssi> and falls with A high and B high
[01:13:15] <zeeshan> er.. brb
[01:13:17] <ssi> turning CCW, it rises with A high and B high, and falls with A low and B high
[01:13:19] <ssi> I can work with that
[01:15:24] <ssi> question is, which one of those edges is the commutation aligned to?
[01:15:42] <ssi> it's only three or four lines, so it's probably not too big a deal
[01:18:42] <ssi> looks like the 4bit code changes on the falling edge of index turning CW
[01:21:14] Groguard is now known as zz_Groguard
[01:27:56] -!- sumpfralle has quit [Ping timeout: 260 seconds]
[01:31:49] -!- somenewguy [somenewguy!~butts@pool-108-7-223-206.bstnma.fios.verizon.net] has joined #linuxcnc
[01:36:04] <zeeshan> my god
[01:36:08] <zeeshan> i posted something for scrap
[01:36:22] <zeeshan> its gone within 15 minutes
[01:36:25] <zeeshan> of the ad posting LOL
[01:36:34] <zeeshan> damn metal scavengers
[01:37:19] <CaptHindsight> ?
[01:37:27] <zeeshan> i ended up throwing away the cabinet
[01:37:31] <zeeshan> cause its too high even as a work bench
[01:37:38] <CaptHindsight> "rusty bed springs, free to good home"
[01:37:54] <zeeshan> http://i.imgur.com/XAWrU83.jpg
[01:37:57] <zeeshan> that stuff
[01:38:00] <zeeshan> =D
[01:38:37] <CaptHindsight> looks like you have very active metal scavengers
[01:46:29] -!- Speedevil has quit [Quit: No Ping reply in 180 seconds.]
[01:46:56] -!- SpeedEvil [SpeedEvil!~quassel@tor/regular/SpeedEvil] has joined #linuxcnc
[01:57:25] -!- Rodrigo_ [Rodrigo_!~Rodrigo@] has joined #linuxcnc
[01:57:36] -!- fenug [fenug!~R@24-212-244-215.cable.teksavvy.com] has joined #linuxcnc
[02:00:45] -!- DanDare has quit [Ping timeout: 246 seconds]
[02:10:52] <XXCoder> yeah
[02:10:55] <XXCoder> heys
[02:13:19] -!- zz_Groguard has quit [Ping timeout: 255 seconds]
[02:20:11] <zeeshan> hi
[02:20:12] <zeeshan> :]
[02:20:57] -!- amiri_ has quit [Read error: Connection reset by peer]
[02:21:46] <XXCoder> whats up
[02:25:00] <Tom_itx> blue sky and taxes
[02:26:29] <pfred1> taxes are cheap here
[02:28:30] <humble_sea_bass> https://www.youtube.com/watch?v=Dw6cs7opvzA
[02:38:50] <XXCoder> fun
[02:39:06] <XXCoder> watching video
[02:39:30] <humble_sea_bass> https://www.youtube.com/watch?v=504I_hJDFck
[02:39:40] <XXCoder> unnesscarily handheld video. unwatchabe
[02:39:42] <humble_sea_bass> this one is just about carbon parts
[02:39:57] <humble_sea_bass> the guy is a bit of an autistic tool, but it is impressive
[02:40:20] <XXCoder> just saw parts. yeah. all carbon eh
[02:40:28] <XXCoder> motor parts made from carbon fiber
[02:41:53] <ssi> I have a good friend that's a composites engineer for Delta
[02:41:58] <ssi> it's amazing what he can do with carbon
[02:42:04] <zeeshan> ssi
[02:42:08] <zeeshan> with your hall motors
[02:42:18] <zeeshan> could you ditch the hall
[02:42:23] <zeeshan> and put an optical encoder on the shaft?
[02:42:27] <ssi> heh
[02:42:29] <ssi> they have no hall
[02:42:32] <ssi> they only have an encoder
[02:42:45] <zeeshan> i'm asking this because
[02:42:50] <zeeshan> i have a couple of DC motors in my basement
[02:42:55] <XXCoder> wonder if its possible to make everything in car out of carbon fiber. :P (besides brake discs and pads)
[02:42:58] <zeeshan> but they have no encoders/tach/hall
[02:42:59] <zeeshan> in em
[02:43:06] <zeeshan> i was thinking of buying a us encoder encoder
[02:43:08] <ssi> dc motors don't need hall
[02:43:08] <XXCoder> yes I am including bolts and such
[02:43:09] <zeeshan> and throwing it on there
[02:43:15] <zeeshan> OH
[02:43:25] <zeeshan> so if i throw an encoder on there
[02:43:27] <zeeshan> ill be good to go?
[02:43:30] <ssi> yep
[02:43:39] <zeeshan> i need this for my 4th and 5th axis
[02:44:00] <zeeshan> also another q for you
[02:44:04] <zeeshan> how good is the holding torque on servos
[02:44:10] <zeeshan> people say it 'nfg'
[02:44:16] <zeeshan> but practically...?
[02:44:26] <ssi> my servos are 6Nm stall torque
[02:45:07] <zeeshan> https://www.flickr.com/photos/128539016@N05/14912262293/
[02:45:16] <zeeshan> can you see the holding torque on there?
[02:45:20] <zeeshan> Mo max?
[02:45:29] <zeeshan> 7.8N-m?
[02:45:50] <ssi> that's probbaly peak torque
[02:46:07] <zeeshan> say you're sitting at 5.000"
[02:46:09] <zeeshan> and machining something
[02:46:15] <zeeshan> taking a nice heavy cut
[02:46:40] <zeeshan> people say that w/ a stepper of equivalent torque output as a servo
[02:46:43] <zeeshan> the stepper would hold its position
[02:46:51] <zeeshan> where a servo might drift 5.000 +/- 1 thou
[02:47:05] <ssi> depends on the servo and your tuning
[02:47:09] <zeeshan> something about that statement doesnt make sense to me
[02:47:13] <ssi> stepper will hold until it doesn't, then you lose steps
[02:47:18] <ssi> servo won't lose steps
[02:47:32] <ssi> if you put more force on it than it can hold, you'll get a follow error and teh machine will fault
[02:47:40] <zeeshan> so if the servo is tuned to be sensitive to 0.0001" and it detects it moves 5.0001"
[02:47:50] <zeeshan> it'll pump current to get inthe opposite direction
[02:47:53] <zeeshan> to 5.0000?
[02:47:57] <ssi> yes
[02:48:12] <zeeshan> so its always fluctuating to whatever your tuning was set to
[02:48:22] <ssi> servos are pretty much always moving
[02:48:28] <zeeshan> okay that makes sense
[02:48:35] <zeeshan> so really their statement has some merit
[02:48:39] <zeeshan> but it's a little misleading
[02:48:49] <zeeshan> because they make it sound like servos will move a lot
[02:49:07] <ssi> no more than your ferror
[02:49:15] <ssi> which by default in linuxcnc is .0005" I think
[02:49:37] <zeeshan> good enough for a mill :)
[02:50:06] * zeeshan is so excited to get this stuff working
[02:50:10] <zeeshan> i really hope it works out
[02:50:15] <zeeshan> and there is no suprises
[02:50:24] <zeeshan> i dont want to spend anymore money! :P
[02:50:51] <ssi> there're always surprises
[02:51:11] <zeeshan> i just hope those amc drives work
[02:51:14] <zeeshan> cause if they dont, it will be a bummer
[02:51:20] <zeeshan> the vfds are all brand new
[02:51:28] <zeeshan> the motors i tested
[02:51:55] <zeeshan> ssi do you know if theres an encoder setup for a spindle
[02:51:57] <zeeshan> that you can bolt on?
[02:52:05] <ssi> not that I'm aware of
[02:52:05] <zeeshan> the mount comes prefabricated
[02:52:07] <ssi> I made one for my lathe
[02:52:07] <zeeshan> with all 3 sensors
[02:52:12] <zeeshan> same here..
[02:52:16] <zeeshan> it was a bit annoying to get it aligned though
[02:52:24] <ssi> I'm worried about the encoder on my spindle motor
[02:52:30] <zeeshan> what kind is it
[02:52:30] <ssi> I wasn't able to get counts outo f it
[02:52:33] <ssi> not really sure
[02:52:44] <zeeshan> is there a trigger wheel?
[02:52:53] <ssi> lemme find the pic
[02:53:17] <ssi> https://pbs.twimg.com/media/B0W6_x0IQAAiHfB.jpg:large
[02:53:21] <ssi> I wish that were higher res
[02:53:49] <zeeshan> looks like some sort of optical disc
[02:53:55] <zeeshan> i see some slots
[02:53:58] <zeeshan> very fine ones
[02:54:02] <ssi> it's more like fingers
[02:54:06] <ssi> I'm wondering if it's hall or something
[02:54:55] <zeeshan> how were you powering it up
[02:55:43] <ssi> http://www.prototechnical.com/~imcmahon/spindle_encoder.jpg
[02:55:50] -!- fenug has quit [Quit: Leaving]
[02:55:54] <zeeshan> oh isee it now
[02:55:59] <ssi> well the wirebook specifically says 5V
[02:55:59] <zeeshan> that looks like a hall effect
[02:56:01] <ssi> so I was giving it 5V
[02:56:08] <zeeshan> 100%
[02:56:12] <ssi> but it may be 24V if it's hall effect
[02:56:23] <zeeshan> ive seen car ones like that
[02:56:25] <zeeshan> with less teeth
[02:56:32] <zeeshan> they run off 12v
[02:56:57] <zeeshan> http://www.adaptronic.com.au/wp/wp-content/uploads/2014/03/PICT0003.jpg
[02:57:02] <zeeshan> those 2 sluts
[02:57:06] <zeeshan> se the cylinders?
[02:57:12] <ssi> yeah
[02:57:22] <ssi> http://www.ebay.com/sch/sis.html?_nkw=FANUC%20A20B%209000%200010%20ENCODER%20A20B90000010%20SPINDLE%20MOTOR%20SENSOR&_itemId=291044644591
[02:57:51] <zeeshan> lol 500
[02:57:55] <ssi> yeah heh
[02:58:53] <ssi> and as usual, there's zero documentation on it
[02:59:06] <zeeshan> it makes sense that if its the wrong voltage
[02:59:07] <zeeshan> like 5v
[02:59:11] <zeeshan> the mag field wont be strong enough
[02:59:22] <zeeshan> but its kinda risky putting 24vdc in there and have it blow up
[02:59:28] <ssi> yep!
[02:59:40] <ssi> http://www.cnc-shopping.co.uk/a20b-9000-0380-fanuc-sensor-for-spindle-motor-p-3241.html?osCsid=b0daac0997196c7b93a1856aee96f1dc
[02:59:44] <ssi> definitely looks like hall
[03:00:01] <zeeshan> can you trace the wires
[03:00:06] <zeeshan> and see where the go?
[03:00:07] <zeeshan> *they
[03:00:16] <zeeshan> and see if its getting run off a 24vdc supply
[03:00:21] <ssi> not really
[03:00:24] <ssi> it used to go into the spindle drive
[03:00:31] <ssi> I may be able to track it down, but I dunno
[03:00:43] <zeeshan> maybe the spindle drive
[03:00:45] <zeeshan> gives it the voltage
[03:00:48] <zeeshan> to gen the mag field
[03:01:39] <ssi> if it is 24V, i dunno how the hell I'm gonna condition the signals for the 7i77
[03:01:53] <zeeshan> dont you just supply the 7i77 with 24vdc?
[03:02:04] <zeeshan> to get 24vdc i/o?
[03:02:04] <ssi> yeah but the encoder interfaces are not at field voltage
[03:02:14] <ssi> and the field IO isn't fast enough for encoders
[03:02:32] <ssi> hm I wonder if I brought the wirebook home
[03:02:35] <ssi> I don't think I did :/
[03:02:57] <zeeshan> what voltage is the encoder inputs on the 7i77?
[03:02:58] <zeeshan> 5v?
[03:03:27] <ssi> yep
[03:03:32] <zeeshan> bah
[03:03:40] <zeeshan> BAH!
[03:03:50] <zeeshan> wait
[03:03:51] <zeeshan> im good
[03:04:00] <zeeshan> the interpolators output 5v ttl
[03:04:08] <zeeshan> i was thinking of the tachometer
[03:04:13] <zeeshan> that gets fed into servo drive
[03:04:40] <zeeshan> solid state relay it :)
[03:06:10] -!- syyl_ [syyl_!~sg@p4FD11F9D.dip0.t-ipconnect.de] has joined #linuxcnc
[03:06:24] -!- pcw_home has quit [Ping timeout: 260 seconds]
[03:06:39] <zeeshan> to test those amc drives, i need to hook up the motor wires
[03:06:44] <zeeshan> and plug it in?
[03:06:55] <zeeshan> and then use a pot on the control side
[03:09:32] <ssi> hey look closer at my encoder pic
[03:09:39] <ssi> you can clearly see one of the pins is labeled "5V"
[03:09:57] -!- pcw_home [pcw_home!~chatzilla@c-50-143-148-115.hsd1.ca.comcast.net] has joined #linuxcnc
[03:10:05] <zeeshan> the very right one?
[03:10:06] <zeeshan> 5V
[03:10:07] <zeeshan> then VA
[03:10:07] <ssi> yep
[03:10:10] <zeeshan> hm
[03:10:31] <ssi> then /VA, VB, /VB, VZ, (OV?), /VZ
[03:11:16] <zeeshan> when you measured counts
[03:11:20] <zeeshan> did u use a scope?
[03:11:23] <zeeshan> or linuxcnc
[03:11:23] <ssi> no
[03:11:25] <ssi> just linuxcnc
[03:11:32] <ssi> I haven't looked at it terribly thoroughly
[03:11:45] <zeeshan> hal scope?
[03:11:48] <ssi> but I did ring out the cable between the motor junction box and the 7i77 and it was wired correctly
[03:11:54] <ssi> just the counts value of the encoder component itself
[03:11:58] <zeeshan> okay
[03:12:04] <zeeshan> that thing is a bit notchy sometimes
[03:12:12] <zeeshan> especially if ure moving the thing by hand
[03:12:27] <ssi> notchy != always 0
[03:12:30] <zeeshan> haha
[03:12:37] * zeeshan is giving you false hope
[03:12:57] <zeeshan> just hook a scope :P
[03:13:05] <ssi> I will at some point
[03:13:06] <zeeshan> or even a multimeter
[03:13:12] <zeeshan> i used a multimeter for mine
[03:13:13] <ssi> well that's the other thing
[03:13:18] <ssi> I hit A and /A with a meter
[03:13:21] <ssi> and got 0V on both
[03:13:23] <ssi> which shouldn't be
[03:14:12] <zeeshan> even if that circuit is blown
[03:14:19] <zeeshan> your machie is nice enough
[03:14:25] <zeeshan> that it gives you space to put your own optical encoder
[03:15:07] <ssi> maybe
[03:15:09] <zeeshan> still cant believe that thing is going for $500
[03:15:12] <zeeshan> are people retarded
[03:15:15] <ssi> that's USED too
[03:15:17] <ssi> I'm sure they're a mint new
[03:15:19] <zeeshan> its a fucking encoder.
[03:15:28] <zeeshan> you can go buy a car hall effect sensor
[03:15:30] <zeeshan> and throw it on there
[03:15:30] <ssi> everything fanuc is ridiculously expensive
[03:15:31] <zeeshan> and make it work
[03:16:00] <zeeshan> i guess these big industries that buy these machines
[03:16:05] <zeeshan> get RAPED on replacements
[03:16:16] <zeeshan> but they have the big bucks :p
[03:16:59] -!- AR__ has quit [Ping timeout: 244 seconds]
[03:22:21] -!- Tecan has quit [Ping timeout: 260 seconds]
[03:23:13] <ssi> ugh I wish my verilog was better
[03:30:21] -!- pfred1 has quit [Quit: L8r]
[03:33:40] -!- Rodrigo_ has quit [Quit: Leaving]
[03:38:36] <XXCoder> http://www.smbc-comics.com/?id=3514#comic
[03:41:17] -!- fenugrec [fenugrec!~sac@24-212-244-215.cable.teksavvy.com] has parted #linuxcnc
[03:41:20] -!- fenugrec has quit [Quit: Leaving]
[03:44:08] <ssi> well
[03:44:11] <ssi> ISE is a pile of shit
[03:44:17] <ssi> I guess that means i'm done for the night
[03:44:28] <XXCoder> ISE?
[03:44:30] -!- Valduare has quit [Quit: Valduare]
[04:07:35] postaL is now known as postaL_offline
[04:12:40] -!- karavanjo_ has quit [Ping timeout: 260 seconds]
[04:13:12] -!- jerryitt has quit [Quit: Connection closed for inactivity]
[04:22:39] -!- karavanjo_ has quit [Ping timeout: 272 seconds]
[04:24:01] -!- koo5 [koo5!~sirdancea@98.82.broadband5.iol.cz] has joined #linuxcnc
[04:46:18] -!- tjtr33 has quit [Quit: Leaving]
[04:51:50] -!- f1oat [f1oat!~f1oat@AMontsouris-553-1-23-200.w92-151.abo.wanadoo.fr] has joined #linuxcnc
[04:52:53] -!- tronwizard has quit [Ping timeout: 260 seconds]
[04:57:57] -!- piccata has quit [Remote host closed the connection]
[04:58:23] -!- tronwizard [tronwizard!tronwizard@] has joined #linuxcnc
[04:58:58] -!- piccata [piccata!~irenacob@li629-190.members.linode.com] has joined #linuxcnc
[05:03:32] -!- Fox_Muldr has quit [Ping timeout: 260 seconds]
[05:05:19] -!- Fox_Muldr [Fox_Muldr!quakeman@] has joined #linuxcnc
[05:10:52] -!- Cylly has quit [Ping timeout: 240 seconds]
[05:13:38] -!- Loetmichel [Loetmichel!cylly@p54B10068.dip0.t-ipconnect.de] has joined #linuxcnc
[05:13:58] -!- Thetawaves has quit [Quit: This computer has gone to sleep]
[05:15:08] -!- FinboySlick has quit [Quit: Leaving.]
[05:17:27] -!- tronwizard has quit [Ping timeout: 246 seconds]
[05:20:25] -!- syyl_ has quit [Ping timeout: 260 seconds]
[05:23:15] -!- Thetawaves [Thetawaves!~Thetawave@156-96-178-69.gci.net] has joined #linuxcnc
[05:23:32] -!- tronwizard [tronwizard!tronwizard@] has joined #linuxcnc
[05:34:43] -!- lucashodge has quit [Client Quit]
[05:41:03] -!- knu2xs has quit [Client Quit]
[05:43:27] -!- lucashodge has quit [Client Quit]
[06:06:31] -!- kwallace has quit [Ping timeout: 272 seconds]
[06:10:57] -!- karavanjo has quit [Ping timeout: 272 seconds]
[06:15:14] -!- f1oat has quit [Ping timeout: 245 seconds]
[06:46:47] -!- ve7it has quit [Remote host closed the connection]
[06:49:59] -!- Deejay__ [Deejay__!~Deejay@p54B66145.dip0.t-ipconnect.de] has joined #linuxcnc
[06:50:13] <Deejay__> moin
[06:55:02] -!- Dava [Dava!~dava@host86-172-203-144.range86-172.btcentralplus.com] has joined #linuxcnc
[06:58:07] -!- Dava has quit [Client Quit]
[06:59:43] -!- The_Ball has quit [Remote host closed the connection]
[07:00:35] -!- GargantuaSauce has quit [Quit: No Ping reply in 180 seconds.]
[07:00:47] -!- GargantuaSauce [GargantuaSauce!~sauce@blk-199-255-218-99.eastlink.ca] has joined #linuxcnc
[07:47:44] -!- b_b has quit [Changing host]
[07:47:52] -!- Miner_48er has quit [Quit: Leaving]
[07:50:07] -!- _WyrM [_WyrM!wyrm@unaffiliated/wyrm] has joined #linuxcnc
[07:50:23] -!- WyrM has quit [Ping timeout: 272 seconds]
[07:50:24] _WyrM is now known as WyrM
[08:01:17] -!- rob_h [rob_h!~robh@] has joined #linuxcnc
[08:03:03] -!- WyrM has quit [Ping timeout: 272 seconds]
[08:07:09] -!- WyrM [WyrM!wyrm@unaffiliated/wyrm] has joined #linuxcnc
[08:08:10] Deejay__ is now known as Deejay
[08:08:14] -!- Deejay has quit [Changing host]
[08:08:14] -!- Deejay [Deejay!~Deejay@unaffiliated/dj9dj] has joined #linuxcnc
[08:13:56] -!- karavanjo_ has quit [Ping timeout: 260 seconds]
[08:23:57] -!- WyrM has quit [Ping timeout: 272 seconds]
[08:24:53] -!- sylphiae has quit [Read error: Connection reset by peer]
[08:26:16] -!- WyrM [WyrM!wyrm@unaffiliated/wyrm] has joined #linuxcnc
[08:31:44] -!- sylphiae [sylphiae!~sylphiae@99-7-4-250.lightspeed.cicril.sbcglobal.net] has joined #linuxcnc
[08:41:33] -!- karavanjo has quit [Ping timeout: 260 seconds]
[08:48:19] -!- Thetawaves has quit [Quit: This computer has gone to sleep]
[08:52:30] -!- phantoxe [phantoxe!~destroy@acarlosss.broker.freenet6.net] has joined #linuxcnc
[09:03:19] -!- Tecan [Tecan!~fasdf@unaffiliated/unit41] has joined #linuxcnc
[09:18:13] -!- lucashodge has quit [Client Quit]
[09:23:01] -!- WyrM has quit [Ping timeout: 260 seconds]
[09:30:17] -!- WyrM [WyrM!wyrm@bnc.wyrm.net.br] has joined #linuxcnc
[09:30:19] -!- WyrM has quit [Changing host]
[09:30:19] -!- WyrM [WyrM!wyrm@unaffiliated/wyrm] has joined #linuxcnc
[09:32:12] -!- GJdan has quit [Quit: WeeChat 1.1-dev]
[09:35:31] -!- WyrM has quit [Ping timeout: 272 seconds]
[09:38:27] -!- WyrM [WyrM!wyrm@unaffiliated/wyrm] has joined #linuxcnc
[09:45:24] -!- WyrM has quit [Ping timeout: 260 seconds]
[09:45:44] -!- WyrM [WyrM!wyrm@unaffiliated/wyrm] has joined #linuxcnc
[09:49:40] -!- toner has quit [Remote host closed the connection]
[10:00:10] -!- piccata has quit [Max SendQ exceeded]
[10:01:48] -!- piccata [piccata!~irenacob@li629-190.members.linode.com] has joined #linuxcnc
[10:21:07] -!- asdfasd [asdfasd!~332332@] has joined #linuxcnc
[10:35:42] -!- koo5 has quit [Ping timeout: 245 seconds]
[10:56:46] -!- toner [toner!~ink@c-71-198-91-97.hsd1.ca.comcast.net] has joined #linuxcnc
[11:00:39] -!- skunkworks has quit [Ping timeout: 245 seconds]
[11:04:56] -!- lair82 has quit [Quit: Page closed]
[11:28:08] -!- skunkworks [skunkworks!~skunkwork@68-115-41-210.static.eucl.wi.charter.com] has joined #linuxcnc
[11:37:38] <zeeshan> too early
[11:37:39] <zeeshan> :{
[11:43:52] -!- tronwizard has quit [Ping timeout: 240 seconds]
[11:44:20] -!- tronwizard [tronwizard!tronwizard@] has joined #linuxcnc
[11:46:01] -!- Komzzzpa has quit [Read error: Connection reset by peer]
[11:51:37] -!- knu2xs has quit [Quit: Be back later ...]
[11:58:52] -!- sylphiae has quit [Ping timeout: 260 seconds]
[12:01:24] -!- SquirrelCZECH has quit [Ping timeout: 244 seconds]
[12:01:39] -!- SquirrelCZECH [SquirrelCZECH!~squirrel@ip-89-103-45-114.net.upcbroadband.cz] has joined #linuxcnc
[12:13:53] -!- toner has quit [Ping timeout: 260 seconds]
[12:15:39] <Tecan> COFFEE
[12:18:00] -!- Valen has quit [Quit: Leaving.]
[12:24:32] -!- asdfasd has quit [Read error: Connection reset by peer]
[12:25:58] -!- toner [toner!~ink@c-71-198-91-97.hsd1.ca.comcast.net] has joined #linuxcnc
[12:27:47] -!- tronwizard has quit [Ping timeout: 245 seconds]
[12:29:11] -!- tronwizard [tronwizard!tronwizard@] has joined #linuxcnc
[12:38:34] -!- rob_h has quit [Ping timeout: 245 seconds]
[12:56:49] -!- syyl_ [syyl_!~sg@] has joined #linuxcnc
[12:58:16] -!- phantoxe has quit [Remote host closed the connection]
[13:07:07] -!- FinboySlick [FinboySlick!~shark@] has joined #linuxcnc
[13:08:13] <archivist> cheez sammich
[13:10:43] -!- rob_h [rob_h!~robh@] has joined #linuxcnc
[13:14:01] -!- zeitue has quit [Remote host closed the connection]
[13:17:12] -!- phantoxe [phantoxe!~destroy@acarlosss.broker.freenet6.net] has joined #linuxcnc
[13:19:25] <ssi> cereal
[13:20:14] <pcw_home> parallel
[13:20:17] <ssi> :D
[13:39:03] -!- amiri has quit [Ping timeout: 244 seconds]
[13:39:50] -!- balestrino [balestrino!~balestrin@] has joined #linuxcnc
[13:40:59] sivu_ is now known as sivu
[13:44:06] <Tom_itx> MSI Z77A-G43 any good for linuxcnc? has cereal and parallel
[13:44:41] <Tom_itx> odd for a new board
[13:46:14] <pcw_home> Lots of new boards have parallel
[13:50:26] <pcw_home> I was just doing some tests with this: (with G3258)
[13:50:27] <pcw_home> http://www.gigabyte.com/products/product-page.aspx?pid=4679#ov
[13:54:59] -!- b_b has quit [Remote host closed the connection]
[13:59:55] <gonzo_> peter, did the full hm2 support for the 7i90 go into the latest release of linuxcnc?
[14:00:56] <pcw_home> its in master not sure about 2.6.x
[14:05:52] <gonzo_> master?
[14:06:57] <pcw_home> Actually looks like it was added at 2.6.0
[14:08:25] <gonzo_> I really must get back on to playing with that. I managed to get the 7i90 flashed, but that was about as far as I got
[14:08:42] <gonzo_> was waiting for the hm2 support.
[14:13:01] -!- dirty_d [dirty_d!~adowning@50-205-178-174-static.hfc.comcastbusiness.net] has joined #linuxcnc
[14:13:24] <dirty_d> so is anyone using this with a raspberry pi?
[14:14:21] <dirty_d> i read the page about timing issues and what not, but that should be pretty easily solvable by writing a device driver taht buffers stepper signals and times them with one of the hardware timers and its ISR
[14:14:40] <SpeedEvil> dirty_d: If you're going that far - the BBB is a _much_ better platform
[14:14:55] <SpeedEvil> itactually has a couple of high speed microcontrollers designed for this stuff
[14:15:11] <pcw_home> except fpr dismal graphics
[14:15:18] <dirty_d> It has a main processor and an additional microcontroller on it?
[14:15:32] <SpeedEvil> pcw_home: indeed
[14:15:35] <SpeedEvil> dirty_d: two
[14:15:44] <pcw_home> Yes 2x PRUs
[14:15:51] <SpeedEvil> dirty_d: 200MHz 32 bit processors designed for hard-realtime stuff
[14:15:53] <dirty_d> how are they connected to the main processor?
[14:16:08] <SpeedEvil> Shared memory window IIRC
[14:16:16] <dirty_d> hmm
[14:16:25] <pcw_home> shared memory (probably DMA also)
[14:16:27] <SpeedEvil> they are not connected to main memory, but have 16(?) K each
[14:17:26] <pcw_home> Theres also mungie's project for DMA stepgen on RPI
[14:17:45] <pcw_home> not sure where that stands
[14:18:04] <dirty_d> the only reason i asked rpi, is because I have one not being used for anything
[14:18:18] <dirty_d> it seems like it shoulnt be hard to do
[14:18:36] <dirty_d> im gonna check out the linuxcnc source
[14:19:11] <pcw_home> Fast step rates are an issue since AFAIK only preemt-RT and Xenomai RT kernels are available
[14:19:42] <pcw_home> (though the DMA scheme may get around that)
[14:20:31] <dirty_d> even without DMA im sure you could just buffer the step commands in a kernel module, and use a hardware timer and interrupt to do the actual stepping
[14:21:59] <pcw_home> The hardware timer will suffer the same latency as all tasks
[14:23:21] <pcw_home> its not like a micorcontrller where you have full control of the hardware/software
[14:24:08] <archivist> dirty_d, linuxcnc uses kernel now
[14:26:10] <dirty_d> pcw_home, hmm, yea i guess if you cant make the timer interrupt have a higher priority than ones that might use a lot of time
[14:26:38] <dirty_d> but I would think you'd be able to
[14:26:45] <ssi> the rpi isn't a great platform
[14:28:31] <pcw_home> LinuxCNC use a RT OS so will have higher latencies that a low level hardware approach but portable and correct
[14:29:21] <pcw_home> rather than "works on this weeks hardware"
[14:30:10] <archivist> one person crammed it onto a pi somewhere but no idea if he maintains it
[14:30:57] <dirty_d> pcw_home, true
[14:33:17] -!- syyl_ws [syyl_ws!~sg@p4FD10DDF.dip0.t-ipconnect.de] has joined #linuxcnc
[14:34:28] -!- theorbtwo has quit [Ping timeout: 255 seconds]
[14:35:49] <CaptHindsight> http://www.raspberrypi.org/forums/viewtopic.php?t=33809 RPi running LinuxCNC with a Xenomai kernel using a PIC32 based add-on card.
[14:37:00] -!- koo6 [koo6!~sirdancea@98.82.broadband5.iol.cz] has joined #linuxcnc
[14:37:10] <pcw_home> also long thread on linuxcnc forum
[14:37:11] <dirty_d> seems easy enough to write an rpi hal driver
[14:37:11] <pcw_home> http://www.linuxcnc.org/index.php/english/forum/18-computer/20514-emc2-running-on-raspberry-pi?limitstart=0
[14:38:23] <CaptHindsight> the PIC32 was connected to the Rpi over SPI, just like Jeplers 7i90 to the Odroid
[14:39:14] <FinboySlick> CaptHindsight: Out of curiosity, you still toy with coreboot?
[14:40:31] <dirty_d> why is a PIC32 neccessary?
[14:40:40] -!- jasen [jasen!4e5330fa@gateway/web/freenode/ip.] has joined #linuxcnc
[14:40:40] <dirty_d> the rpi already has timers and gpio
[14:41:21] -!- theorbtwo [theorbtwo!~theorb@cpc8-swin16-2-0-cust252.3-1.cable.virginm.net] has joined #linuxcnc
[14:42:19] <dirty_d> you should be able to use the nvic to set up a timer interrupt with higher priority than everything else.
[14:43:08] -!- tronwizard has quit [Ping timeout: 250 seconds]
[14:43:09] <dirty_d> although if another interrupt masks it...
[14:43:45] <pcw_home> Sure running on bare metal, but as soon you have t get along with the OS its all out the window
[14:44:30] -!- tronwizard [tronwizard!tronwizard@] has joined #linuxcnc
[14:44:46] <dirty_d> it shouldnt be an issue at all
[14:44:50] <cpresser> dirty_d: because its way easier to use an additional uC than to fiddle with the kernel. at least for hardware-guys :)
[14:46:14] <dirty_d> true
[14:47:24] <pcw_home> Its not just the kernel either. when you have a multitasking OS accessing hardware on your SOC you may be find you hardware access blocked for long enough periods to be an issue
[14:49:47] <SpeedEvil> And then tehre is random crap
[14:49:47] <pcw_home> on PCs software step generation almost always uses RTAI whaich has the lowest latency of the various free Linux RTOS's
[14:50:13] <SpeedEvil> Like graphics cards or things pulling things out of main RAM and blocking the bus for long enough to create jitter
[14:50:33] <dirty_d> hmm
[14:50:41] <pcw_home> but for the RPI only Xenomai and Preemt-RT are available both of which have higher latency
[14:50:59] <SpeedEvil> It depends.
[14:51:14] <SpeedEvil> For low-rate steppers - it may not be a concern
[14:51:30] <dirty_d> what kind of stepping frequency are we talking for a typical cnc mill?
[14:52:16] <pcw_home> depends...
[14:52:19] <dirty_d> i cant remember what microstepping setting im using
[14:54:26] <dirty_d> i think 1600 steps/rev
[14:54:54] <pcw_home> with software stepping often 1/4 or 1/2 stepping is used to allow fast rapid rates, 1600 would be 1/8 step
[14:54:55] <ssi> what's your leadscrew pitch?
[14:56:21] <dirty_d> 5mm
[14:56:28] <dirty_d> so around 13kHz at 20ipm
[14:56:31] <dirty_d> right?
[14:56:55] <_methods> anyone here tried out these closed loop steppers?
[14:56:57] <_methods> http://www.aliexpress.com/item/NEMA-23-closed-loop-stepper-motor-HM86D-driver/2031867996.html
[14:57:28] <ssi> 20ipm on a 5mm screw is about 100rpm
[14:57:34] <pcw_home> 8 KHz at 60 IPM
[14:58:52] <dirty_d> pretty slow
[14:59:05] <pcw_home> probably 2x that is easy on a PC parallel port (if your drives will do it)
[14:59:18] <dirty_d> as long as interrupts dont get globally disabled in the kernel for long
[14:59:29] <dirty_d> i have no idea if they do
[14:59:30] -!- kwallace has quit [Ping timeout: 246 seconds]
[14:59:31] -!- f1oat [f1oat!~f1oat@AMontsouris-553-1-23-200.w92-151.abo.wanadoo.fr] has joined #linuxcnc
[14:59:43] <pcw_home> thats why you use RTAI
[15:00:16] <pcw_home> (so they dont)
[15:00:41] -!- jasen has quit [Quit: Page closed]
[15:00:48] <dirty_d> ooo, there is no more glocal cli()
[15:00:51] <dirty_d> global*
[15:02:31] <pcw_home> leaving CLI in the hands or mere mortals is a recipe for disaster
[15:03:17] <dirty_d> i guess it would be easy to test, set up a timer and isr, have it toggle a gpio pin at 100khz
[15:03:23] <dirty_d> then check the jitter
[15:04:08] <CaptHindsight> _methods: for applications where you aren't sure if you have enough torque, the screws tend to bind for not yet discovered reasons, not sure if you're stepping to fast, etc etc?
[15:04:34] <_methods> nah i was just wondering if anyone had tried them out on a machine
[15:05:05] <_methods> was thinking about using them for a build
[15:05:26] <ssi> the line between servo and stepper get pretty blurry when you look at stuff like that in contrast to a brushless servo with a step/dir drive
[15:05:46] <pcw_home> They are full servos
[15:06:14] <pcw_home> (just with 2 phase 50 pole motors)
[15:06:27] <ssi> yeah I suppose it's just a two phase servo with a step/dir position mode drive
[15:06:32] <CaptHindsight> but with the noise (music) that steppers bring
[15:06:52] <ssi> servos have their own music :)
[15:08:06] <pcw_home> Yep, they also have a couple nice advantages 50 poles so low speeds and they can be perfectly quiet when static (they can run in low current step motor mode when idle so no encoder jitter)
[15:08:26] -!- alex_joni has quit [Ping timeout: 244 seconds]
[15:08:34] <_methods> interesting
[15:08:43] <CaptHindsight> so why close the loop?
[15:09:03] <pcw_home> 0 power if not needed
[15:09:24] <pcw_home> better performance (stiffer)
[15:09:42] <ssi> ooh I hadn't even thought about that
[15:09:45] -!- alex_joni [alex_joni!~alex_joni@] has joined #linuxcnc
[15:09:49] <pcw_home> can only stall in the servo sense
[15:09:50] <ssi> the stepper will idle with no current, but if you push on the axis, it'll push back
[15:09:52] <_methods> well maybe i will try them out
[15:10:13] <ssi> _methods: see if you can run those drives in velocity mode... close the position loop in linuxcnc
[15:10:33] <CaptHindsight> why would you push on an axis?
[15:10:50] <pcw_home> no resonance
[15:11:25] <ssi> CaptHindsight: ever run a mill with a 1000lb head?
[15:11:30] <ssi> gravity pushes on it pretty good
[15:11:53] -!- zzolo has quit [Quit: zzolo]
[15:12:01] <CaptHindsight> but a stepper without the loop closed would also hold the load
[15:12:34] <pcw_home> SSI Thats where you want a velocity mode servo with a torque bias in the drive
[15:12:46] <_methods> they seem quite a bit cheaper than conventional servo
[15:12:48] <ssi> I'm not sure I've ever seen a drive with torque bias
[15:13:16] <skunkworks> (or counterbalance..)
[15:13:24] <ssi> I definitely dont' have a counterbalance
[15:13:26] <ssi> I have a brake instead
[15:13:29] <ssi> and that bitch is HEAVY
[15:13:35] <skunkworks> we have both
[15:13:47] <ssi> I think the sabre 1250 has a pneumatic counterbalance
[15:13:54] <pcw_home> yeah but an open loop stepper needs full current (HOT motors) to end up with lower stiffness
[15:14:38] * cpresser is about to setup a machine with closed loop stepper drives.
[15:14:48] <cpresser> because i need a lot of torque at very low speeds
[15:14:55] <ssi> I've kicked around the idea of converting my g0602 lathe to closed loop stepper
[15:15:08] <ssi> primarily because I want the homing repeatability of an index line
[15:15:19] <cpresser> i have a 1000ppr encoder on the leadscrew and a 50Nm stepperdrive
[15:15:25] -!- karavanjo has quit [Ping timeout: 255 seconds]
[15:15:32] <ssi> cpresser: what kind of machine?
[15:15:35] <CaptHindsight> it's interesting to hear about the tradeoffs
[15:15:51] <cpresser> ssi: singe axis machine. used for tensile strenght testing
[15:15:59] <cpresser> ~strength
[15:16:11] <ssi> ah
[15:16:13] <ssi> coupon-ripper? :D
[15:16:33] <CaptHindsight> retrofits vs designing a machine
[15:16:35] <cpresser> sorry, i dont understand 'coupon-ripper' :/
[15:16:41] <_methods> test coupons
[15:16:49] <_methods> it's a term for test "blanks"
[15:16:56] <ssi> yeah
[15:16:56] <cpresser> like specimen?
[15:16:59] <ssi> yep
[15:17:00] <_methods> speciment
[15:17:10] <ssi> I'ved one work like that in both sheet metal and composites for aircraft work
[15:17:13] <cpresser> ah okay. yes, it is :)
[15:17:17] <ssi> rivet up or bond up test coupons, then pull them til they fail :)
[15:17:24] <cpresser> but for glue-bonds.
[15:17:28] <ssi> yea
[15:18:06] <cpresser> similar to this one: http://img.directindustry.de/images_di/photo-g/material-prufmaschinen-tisch-72280-3036213.jpg
[15:18:35] <cpresser> but its a 1960 heavy duty setup i am doing a retrofit on. 200kN Force is the designgoal :)
[15:19:26] <SpeedEvil> That's a lot of apples.
[15:19:31] <ssi> building yours from scratch?
[15:19:58] <ssi> oh
[15:20:04] <ssi> never mind, I fail at reading comprehension :)
[15:20:55] -!- SquirrelCZECH has quit [Quit: SquirrelCZECH]
[15:21:02] -!- jamesarm97 [jamesarm97!~jamesarm9@cpe-098-025-103-086.sc.res.rr.com] has joined #linuxcnc
[15:24:49] <_methods> well seems like they are quite a bargain
[15:25:02] <_methods> you get servo performance for considerably less
[15:26:05] <ssi> _methods: you don't need those in particular, you can do it with any stepper that has an encoder on it
[15:26:30] <ssi> you can run linuxcnc stepgens in velocity mode, and then treat the stepgen like a velocity mode servo drive and close the position loop in linuxcnc
[15:26:58] <_methods> hmm
[15:27:12] <ssi> I have a model I made for 3d printing mounts that screw to the back of keling nema23 steppers in the extra tapped holes, and they provide a mount point for the AMT encoders that digikey sells for $25
[15:27:50] <_methods> i guess it would be cheaper then to just get some nema23 steppers and drop encoders on them
[15:27:55] <ssi> yeah
[15:27:58] <ssi> and then you can use whatever drive you want
[15:28:03] <_methods> yeah
[15:28:12] <_methods> maybe i'll just do that then
[15:28:17] <ssi> problem with what you linked is you're closing the loop in the drive, so you still have to feed it step/gen
[15:28:21] <ssi> great for mach guys
[15:28:26] <ssi> sorta limiting for us :)
[15:37:42] <CaptHindsight> http://sourceforge.net/p/emc/mailman/emc-users/thread/CAFq0N1wKNtusWnCgtyVqRspgjfPwdEJd_6O%2BWj3Xd7Sxzj5iMw%40mail.gmail.com/#msg32946095
[15:37:54] <CaptHindsight> [Emc-users] How to Migrate from Mach3 to LinuxCNC
[15:38:32] <ssi> ha!
[15:39:02] <_methods> hehe
[15:45:04] -!- amnesic_away has quit [Quit: ZNC - http://znc.in]
[15:50:26] -!- skunkworks has quit [Read error: Connection reset by peer]
[15:51:05] -!- knu2xs has quit [Quit: Be back later ...]
[15:56:07] <Jymmm> Three games of the world series to be at AT&T park.. reserved parking is $220 to $550… tickets are being offered as high as $27,000
[16:01:30] -!- johtso has quit [Quit: Connection closed for inactivity]
[16:07:54] -!- quiqua has quit [Quit: quiqua]
[16:12:01] -!- mozmck has quit [Read error: Connection reset by peer]
[16:12:29] postaL_offline is now known as postaL
[16:13:06] -!- zzolo has quit [Quit: zzolo]
[16:13:57] -!- mozmck [mozmck!~moses@] has joined #linuxcnc
[16:14:48] -!- phantoxe has quit [Remote host closed the connection]
[16:26:20] -!- Khetzal has quit [Remote host closed the connection]
[16:28:26] -!- phantoxe [phantoxe!~destroy@acarlosss.broker.freenet6.net] has joined #linuxcnc
[16:29:52] -!- Guest53634 has quit [Quit: Reconnecting]
[16:30:32] HeXiLeD is now known as Guest22802
[16:32:25] Guest22802 is now known as HeXiLeD
[16:32:50] -!- HeXiLeD has quit [Changing host]
[16:35:45] -!- syyl_ has quit [Ping timeout: 244 seconds]
[16:55:22] -!- Nick001-shop [Nick001-shop!~chatzilla@74-37-11-191.dr01.brvl.mn.frontiernet.net] has joined #linuxcnc
[16:58:59] -!- balestrino has quit [Ping timeout: 272 seconds]
[17:02:07] -!- syyl_ws has quit [Quit: Verlassend]
[17:06:26] -!- patrickarlt has quit [Ping timeout: 265 seconds]
[17:06:55] -!- phantoxe has quit [Ping timeout: 265 seconds]
[17:08:51] <zeeshan> Connor: those double ballnuts got delivered today
[17:08:55] <zeeshan> interesting design
[17:09:02] <Connor> Cool
[17:12:07] -!- phantoxe [phantoxe!~destroy@acarlosss.broker.freenet6.net] has joined #linuxcnc
[17:12:35] <Connor> SSI: (11:44:11 PM) ssi: ISE is a pile of shit ?? What was that about ?
[17:12:42] <ssi> it was about ISE
[17:12:44] <ssi> which is a pile of shit
[17:12:49] <Connor> What is ISE ?
[17:12:49] <ssi> I thought that much was clear ;)
[17:12:56] <ssi> Xilinx's EDA software package
[17:13:00] <zeeshan> ssi did u get the drives?!?! :D
[17:13:06] <Connor> AH. Okay.
[17:13:12] <ssi> zeeshan: they're at my door, but I actually went to work today
[17:13:25] <zeeshan> :D
[17:13:44] <zeeshan> ive been dealing with labs all day
[17:13:49] <zeeshan> some of these students
[17:13:54] <zeeshan> man...
[17:13:59] <zeeshan> like how hard is to clean up a milling machine?
[17:14:09] -!- syyl_ [syyl_!~sg@p4FD10DDF.dip0.t-ipconnect.de] has joined #linuxcnc
[17:14:09] <zeeshan> i'm not your mom whos going to clean it for you
[17:14:20] <zeeshan> hopefully the afternoon group is better
[17:18:26] <ssi> ugh 3ph power hurts my brain
[17:18:32] <ssi> Eric Hidle
[17:18:32] <ssi> that's the magic of three phase
[17:18:32] <ssi> so 60A is that you have 60A in a single loop, but for a balanced load, ZERO net current
[17:18:35] <ssi> it's fucking magical
[17:18:38] <ssi> Hence, the sum of the currents in the three conductors is always zero and the current in each conductor is equal to and in the opposite direction as the sum of the currents in the other two. Thus, each conductor acts as the return path for the currents from the other two.
[17:18:49] <ssi> Eric's my pet EE
[17:19:30] <zeeshan> that is assuming that all 3 conductors
[17:19:33] <zeeshan> are of equal resistance
[17:19:41] <ssi> why wouldn't they be? :P
[17:20:05] <TekniQue> ssi: yeah and if you have two phases loaded to an equal load, the neutral conductor will carry the same amperage
[17:20:16] <TekniQue> in a WYE system
[17:20:23] <FinboySlick> ssi: Depends on your definition of 'equal'. If you're going in strict mathematical terms, they never are.
[17:20:38] <ssi> well they're out of phase, so I guess they're not instantaneously equal
[17:20:42] <zeeshan> yea we always tried to balance the loads
[17:20:51] <TekniQue> they are of equal amplitude
[17:20:53] <ssi> like I said, 3ph power hurts my brain
[17:20:55] <FinboySlick> ssi: I meant the resistance.
[17:20:59] <ssi> oh
[17:21:00] <zeeshan> its not bad
[17:21:06] <zeeshan> use phasors!
[17:21:14] <ssi> not interested in nitpicking microohms :)
[17:21:48] <zeeshan> i think we considered anything +/-5%
[17:21:51] <zeeshan> as balanced
[17:22:46] <zeeshan> i took this course in 2nd year
[17:22:52] <zeeshan> "Electricity and motors"
[17:23:07] <zeeshan> theres where they started introducing polyphase circuits
[17:23:17] <zeeshan> and the concepts of reactance inductance and capacitance
[17:23:20] <zeeshan> i had no clue before that :P
[17:23:34] <Jymmm> LCR
[17:23:36] <ssi> reactance applies in singlephase circuits too
[17:23:55] <ssi> power factor is a very real thing in inductive systems like motors
[17:24:01] <zeeshan> youer right
[17:24:06] <zeeshan> it applies to all ac circuits
[17:24:12] <zeeshan> which is what that course was about
[17:24:15] <Jymmm> tank circuit?
[17:24:35] <ssi> uh oh, Jymmm's saying related words again!
[17:24:37] <zeeshan> ssi you think ull get to try the4 drives tonight
[17:24:37] <ssi> :D
[17:24:39] <zeeshan> <- me is excited
[17:24:41] <ssi> yeah probably
[17:25:01] <zeeshan> this chai guy from lmb2008
[17:25:04] <zeeshan> smokes for sure
[17:25:13] <zeeshan> his packages always smell like ciggarettes
[17:25:24] <ssi> gross
[17:25:33] -!- rob_h has quit [Ping timeout: 255 seconds]
[17:27:30] -!- PoolShark__ [PoolShark__!~root@2602:306:306c:3100:6110:c9b1:9959:5778] has joined #linuxcnc
[17:27:33] <PoolShark__> ohai
[17:27:52] <ssi> hai
[17:27:53] -!- PoolShark__ has quit [Client Quit]
[17:28:42] -!- PoolShark__ [PoolShark__!~ehidle@2602:306:306c:3100:6110:c9b1:9959:5778] has joined #linuxcnc
[17:28:46] <PoolShark__> ohai oops was root
[17:29:30] <PoolShark__> so I hear we're talking about polyphase stuff?
[17:29:32] <Jymmm> haha, irc protecting you from yourself =)
[17:37:58] <ssi> hehe
[17:46:54] <ssi> well PoolShark, you managed to murder the channel
[17:47:08] -!- knu2xs has quit [Ping timeout: 255 seconds]
[17:49:06] <Connor> It wa dead already. :)
[17:53:03] -!- phantoxe has quit []
[17:53:12] -!- jerryitt has quit [Quit: Connection closed for inactivity]
[17:59:53] <ssi> "I do see WHY some go to Mach. They don't know or trust 'free
[17:59:53] <ssi> software'. An irrational fear, but real. So they would rather buy a
[17:59:53] <ssi> solution they 'can get support for' rather than having to get involved
[17:59:54] <ssi> in a community to know how to obtain real good, fast support."
[18:00:02] <ssi> lol, I don't trust commercial software
[18:00:04] <ssi> it rarely works well
[18:00:12] <ssi> (see also, "ISE is a pile of shit")
[18:01:44] -!- chillly has quit [Quit: Ex-Chat]
[18:04:36] <cradek> doesn't mach support come from the good will of your peers through a web forum?
[18:04:56] <ssi> I dunno, I never tried to get commercial support for my copy of mach
[18:05:21] <ssi> I got "support" the same way I get it from everything else: googling for other people with similar problems, so basically yes through a web forum :)
[18:10:52] <_methods> wasn't mach3 free at one point
[18:12:03] -!- sumpfralle [sumpfralle!~lars@on1.informatik.uni-rostock.de] has joined #linuxcnc
[18:12:11] <MrHindsight> when it was part of EMC1?
[18:13:11] <DaViruz> ssi: what about the net current being zero? that is true for any circuit if you look at it like that, three phase or not
[18:13:11] <MrHindsight> I forget the history. EMC vs EMC2 and when the dev behind mach split off
[18:13:26] <ssi> DaViruz: true :P
[18:15:16] <_methods> i know about 10 years ago i was working at a place that had an old strippit turret punch with the hecc80 controller on it that i was going to attempt to retrofit
[18:15:44] <_methods> never did it but i remember mach being one of the possible things to run with
[18:15:50] <ssi> I have a diacro vt19 nc turret punch that I need to retrofit
[18:16:07] <_methods> man turret punch is the shiznit
[18:16:12] <_methods> but LOUD
[18:16:16] <ssi> heheh I'm sure
[18:16:20] <ssi> I just wish this one was bigger
[18:16:21] <_methods> your neighbors won't be happy to hear that
[18:16:29] <ssi> it's at the airport, not worried about neighbors :)
[18:16:44] <_methods> you're good to go then
[18:17:00] <ssi> it'll be nice for making airplane parts on
[18:17:01] <_methods> hardly a hobbiest thing though
[18:17:04] <ssi> but it's too small for anything serious
[18:17:08] <ssi> it's 28" by 19"
[18:17:09] <ssi> 19" throat
[18:17:10] <_methods> punches and dies are expensive
[18:17:21] <ssi> well the guy that gave it to me has 100 dies for it
[18:17:25] -!- patricka_ has quit [Remote host closed the connection]
[18:17:30] <_methods> that's a good thing
[18:17:36] <_methods> that much tooling would cost you a fortune
[18:17:36] <ssi> I don't actually own it at this point
[18:17:48] <ssi> he wants $3k in equity in it for the machine and all the tooling
[18:17:50] <_methods> you have a surface grinder?
[18:17:59] <ssi> I can either buy it from him at that price or if I convert it and sell it i owe him 3k
[18:18:03] <ssi> yeah
[18:18:03] <ssi> I have a reid 2C
[18:18:07] <_methods> you'll need one
[18:18:13] -!- PCW [PCW!~chatzilla@] has joined #linuxcnc
[18:18:17] <_methods> sharpening punches is a full time job lol
[18:18:20] <ssi> heheh
[18:18:35] <_methods> keep em sharp and your life will be happy
[18:19:09] <ssi> I've never run one
[18:19:19] <_methods> it's another world
[18:19:20] <ssi> when I get the vmc retrofit done I may look at doing the press
[18:19:35] <_methods> what controller on it?
[18:19:40] <ssi> GE 550
[18:19:42] <ssi> punch tape :)
[18:19:50] <_methods> yeah that's what that hecc 80 had on it
[18:19:53] <ssi> I think it's steppers too
[18:19:57] <ssi> slo-syn round body steppers
[18:19:59] <_methods> bubble memory upgrade lol
[18:20:04] <ssi> heheh
[18:20:33] <_methods> those machines are beasts though
[18:20:47] <_methods> they don't make em like that anymore
[18:20:54] <ssi> for good reason! ;)
[18:21:04] <_methods> i hope you got at least 6" slab lol
[18:21:18] <ssi> man the punch is the least of my worries when it comes to the slab
[18:21:22] <ssi> I have that sabre 500 in there now
[18:21:25] <ssi> and it's about 9000lb empty
[18:21:29] <_methods> heheh
[18:21:39] <_methods> they like to pour thin slabs in hangars
[18:21:43] <ssi> yeah
[18:21:50] <_methods> a stiff breeze will blow an airplane away
[18:21:51] <ssi> well also I parked the 20,000lb forklift in there
[18:21:54] <ssi> and no issues
[18:22:24] <ssi> https://pbs.twimg.com/media/BzuZ7sSIYAAtckC.jpg:large
[18:22:26] <_methods> well honestly unless you're really pushin a vmc the slab should be fine
[18:22:27] <ssi> the punch press is in the back
[18:23:01] -!- skunkworks_ [skunkworks_!~chatzilla@str-broadband-ccmts-ws-26.dsl.airstreamcomm.net] has joined #linuxcnc
[18:23:34] <_methods> oh that's a little guy
[18:23:38] <ssi> yeah it's small
[18:23:45] <ssi> I really wish it were bigger
[18:23:54] <ssi> vans makes the RV kits on big trumpf 2000 punches
[18:23:59] <_methods> well ignore all my slab warnings lol
[18:24:00] <ssi> they handle a 5x10 sheet
[18:24:07] <_methods> yeah tc5050
[18:24:12] <_methods> tc2000
[18:24:15] <_methods> they are bad ass
[18:24:18] <ssi> yeah, definitely
[18:24:23] <ssi> this one is a joke compared to those :)
[18:24:24] <_methods> trumpf makes an awesome punch
[18:24:38] <_methods> no turret either
[18:24:48] <_methods> they run their dies in a straight line
[18:24:50] <ssi> yeah
[18:24:57] <_methods> makes it so they can do some neat stuff
[18:25:01] <_methods> indexing punches and dies
[18:25:15] <ssi> yeah one thing I'm not sure about
[18:25:24] <ssi> I think the trumpf can rotate the punch and die
[18:25:31] <ssi> I dunno if this diacro can do that
[18:25:40] <ssi> it'd be annoying if the punch is only in one orientation always
[18:25:41] <_methods> i doubt that
[18:25:51] <_methods> most punches have indexed holders
[18:25:58] <_methods> so you put them in at a certain angle
[18:26:08] <_methods> but the trumpfs have cnc controlled punch and die indexing
[18:26:34] <ssi> so if you need a horizontal obround slot and a vertical obround slot, you have to have two of the same tool and index them differently
[18:26:41] <_methods> https://www.youtube.com/watch?v=mgRn0Gvacww
[18:26:46] <_methods> yeah
[18:27:01] <ssi> yeah man that's so cool
[18:27:12] <_methods> for hole intensive parts a turret punch will eat a laser for breakfast
[18:27:25] <ssi> heh hilariously, I have a laser
[18:27:28] <ssi> and a cnc plasma
[18:27:39] <ssi> I'm starting to look like a damn machine hoarder :P
[18:27:48] <_methods> well i'm talking strictly production
[18:27:53] <ssi> yeah I know
[18:28:08] <ssi> I'd much rather listen to a laser tho
[18:28:09] <ssi> :P
[18:28:13] <_methods> hell yeah
[18:28:17] <_methods> punches are hell
[18:28:41] <ssi> so the trumpf can do those big long cuts
[18:28:44] <ssi> like it's cutting those holes out
[18:28:51] <ssi> you think the diacro can do anything like that?
[18:28:53] <ssi> or is that wishful thinking
[18:29:25] <_methods> you don't have a turret on it so no
[18:29:31] <_methods> looks like that's a 1 station punch
[18:29:32] -!- PoolShark__ has quit [Remote host closed the connection]
[18:29:35] <ssi> no mine's a turret
[18:29:36] <ssi> 18 station
[18:29:39] <_methods> oh
[18:29:42] <_methods> that little thing?
[18:29:45] <ssi> yep
[18:29:50] <_methods> wow
[18:29:53] <ssi> it's not as little as it looks in the picture
[18:30:02] <ssi> that hangar's 37' deep, so it's 25' behind the mill
[18:30:03] <_methods> well if you have 18 stations then yah you can set them up
[18:30:04] <ssi> and the mill is BIG
[18:30:28] <_methods> but what that trumpf is doing i'm sorry to say your machine will never do lol
[18:30:31] <ssi> oh I know
[18:30:32] <ssi> heheh
[18:30:58] <_methods> it's even bending legs up on parts lol
[18:31:28] <_methods> https://www.youtube.com/watch?v=VPRtpd4tNTc
[18:31:34] <_methods> tc5000 with sheet loader
[18:32:18] <ssi> I still want to figure out how to do thin sheet metal on my laser
[18:32:34] <_methods> how many watts you got?
[18:32:36] <_methods> 80?
[18:32:37] <ssi> 120
[18:32:42] <_methods> oh
[18:32:43] <_methods> hmmm
[18:33:15] <_methods> well if you want to get crazy you could try throwing some oxygen in the cut
[18:33:20] <_methods> make liek a swirl ring
[18:33:23] <_methods> like on plasma
[18:33:35] <_methods> and try pushing some oxygen to bump the temp maybe
[18:33:40] <ssi> I'm wondering if there are coatings I can use to reduce reflectivity and start the cut
[18:33:50] <_methods> milk of magnesia
[18:33:57] <ssi> I messed around a little bit with some 28ga steel, and it etched a line that would catch a fingernail, but that was about it
[18:33:58] <_methods> old laser operator trick
[18:34:00] <ssi> hm
[18:34:09] <_methods> but 120 watts isn't much
[18:34:15] <ssi> I've been told thin stainless is even easier than mild
[18:34:21] <ssi> and what I really want to do is cut pcb stencils
[18:34:23] <_methods> yeah lasers love stainless
[18:34:24] <ssi> .005" stainless foil
[18:34:31] <_methods> i would think you could cut that
[18:34:36] <ssi> I need to try it
[18:34:46] <ssi> I cut a mylar stencil for my converter pcbs
[18:34:48] <ssi> and it came out ok
[18:34:52] <ssi> but I had to go VERY VERY FAST
[18:34:55] <ssi> on the lowest power setting
[18:34:58] <_methods> yeah
[18:35:00] <ssi> and it still was kinda melty
[18:35:05] <_methods> melt it up if you dont eh
[18:35:08] <ssi> yeah
[18:35:10] <ssi> it'll blow a big ol hole
[18:35:18] <ssi> and my big laser doesn't turn down much
[18:35:19] <_methods> so have you tried .005?
[18:35:29] <ssi> lowest power that'll trigger it is 8mA, which is like 25 or 30W
[18:35:31] <ssi> no, not yet
[18:35:39] <ssi> I need to get some stock
[18:35:49] <_methods> well .005" isn't much i'd think you could cut that
[18:35:58] <_methods> you can cut 1/2" wood with 120 watts?
[18:36:04] <ssi> yeah
[18:36:08] <ssi> with a 3" lens it cuts easiely
[18:36:13] <ssi> actually it only takes about 16mA
[18:36:17] <ssi> probably 50-60W
[18:36:29] <_methods> well i would think you should be able to cut .005" then
[18:36:32] <ssi> crazy thing about laser is turning up the power doesn't allow you to cut any thicker or faster
[18:36:41] <_methods> yeah
[18:37:01] <_methods> well personally if you want to cut anything more i think you need to add gas like oxygen
[18:37:16] <ssi> yeah possibly
[18:37:31] <_methods> and create piercing cycles
[18:37:45] <ssi> well what do you know about laser piercing?
[18:37:49] <ssi> I do piercing on the plasma of course
[18:37:58] <_methods> pecking and stuff
[18:38:01] <ssi> and I'm using sheetcam for the laser as well, and it has pierce delay
[18:38:04] <_methods> moving around
[18:38:07] <ssi> hm
[18:38:13] <_methods> it just depends
[18:38:19] <_methods> on the material and thickness
[18:38:35] <ssi> too much magic in laser :)
[18:38:42] <_methods> i would think that 120w on .005 you could just punch through
[18:38:49] <ssi> yeah I just haven't tried yet
[18:38:57] <_methods> well it's not magic it just depends on the machine and the material
[18:39:24] <_methods> but those little lasers weren't really made for metal
[18:39:28] <ssi> yeah I know
[18:39:40] <ssi> it's not even all that little :)
[18:39:46] <_methods> yeah
[18:39:53] <_methods> you got 48x48?
[18:39:57] <ssi> 24x48
[18:40:05] <ssi> and the tube is 65" long :P
[18:40:08] <_methods> yeah tha'ts what i want to do for my plasma
[18:40:15] <ssi> I have 48x48 plasma
[18:40:15] <_methods> 24x48 is good enough for me
[18:40:23] <_methods> 48x48 would be nice
[18:40:26] <_methods> that's half sheets
[18:40:28] <ssi> yep
[18:40:41] <_methods> hold it up there and rip it off heheh
[18:40:49] <ssi> heheh
[18:40:57] <ssi> I usually buy metal and have it sheared in half
[18:41:15] <_methods> they don't charge you to shear it?
[18:41:18] <ssi> place I get metal from charges $5 per shear, so it makes a $50 sheet cost $55, but significantly improves my handling :)
[18:41:27] <_methods> yeah
[18:41:31] <_methods> $5 go for it
[18:41:34] <ssi> yep
[18:41:40] -!- arek_at_work has quit [Quit: Konversation terminated!]
[18:42:22] <ssi> https://pbs.twimg.com/media/Bz3llrjIMAI5Ykf.jpg:large
[18:42:23] -!- Flipp__ [Flipp__!Flipp@nat/google/x-wqjudmnssxrotldq] has joined #linuxcnc
[18:42:34] <ssi> cutting a batch of acrylic endcaps for a customer of mine
[18:42:44] <ssi> https://pbs.twimg.com/media/Bz3pFfnIEAAjxJd.jpg:large
[18:42:49] <ssi> and matching silicone gaskets :)
[18:43:43] <_methods> ah does it have shield gas?
[18:43:48] <ssi> yeah air assist
[18:43:58] <_methods> no shit yeah that's what you need
[18:44:06] <ssi> it'd be relatively easy to add o2 as a source
[18:44:10] <_methods> try puttin a small amount of oxygen in there
[18:44:16] <_methods> keep it low
[18:44:21] <_methods> you coudl blow shit up
[18:44:25] <ssi> well for that I'd need a mixing manifold or something
[18:44:31] <_methods> i'd mix it
[18:44:33] <_methods> and be careful
[18:44:42] <ssi> is it kosher to mix with shop air?
[18:44:47] <ssi> or would I need to run o2 bottle and air bottle
[18:44:49] <_methods> yeah
[18:44:59] <_methods> you should be fine on shop air
[18:45:05] <_methods> shop air already has some o2 in it
[18:45:11] <ssi> yeah, 21% :P
[18:45:13] <_methods> so not sure if it will really help
[18:45:20] <_methods> but you never know
[18:45:24] <_methods> heheh
[18:45:46] <_methods> like that mylar you could try running nitrogen through threre
[18:45:50] <_methods> to keep it cool
[18:45:52] <ssi> yeah
[18:46:13] <_methods> nitrogen is expensive though
[18:46:22] <_methods> so you may not want to use that
[18:46:38] <ssi> eh I've been meaning to get a nitrogen bottle anyway
[18:46:42] <_methods> i'm not sure how many hobby laser people experiment with using gasses on their cuts
[18:46:46] <ssi> for struts and tires on aircraft
[18:46:54] <_methods> i'm sure someone has done this somewhere before
[18:47:03] <ssi> probably
[18:47:04] <_methods> it's common with industrial lasers
[18:47:08] <ssi> there's not a lot of DIY lasers out there anyway
[18:47:15] <_methods> really?
[18:47:16] <ssi> most of the hobby lasers are some kind of chinese monstrosity
[18:47:21] <_methods> hehe
[18:47:27] <ssi> mine's completly scratch built
[18:47:38] <_methods> well shit i see they are sellin yags for like $40k
[18:47:42] <_methods> that can cut 1/4"
[18:47:47] <_methods> steel
[18:47:55] <ssi> damn jdh's company threw away a bunch of 5kw yags :(
[18:47:59] <ssi> still mad about that
[18:48:01] <_methods> oh yeah?
[18:48:09] <_methods> they sucked?
[18:48:13] <ssi> I dunno
[18:48:35] <ssi> I can't imagine a world in which a 5kw laser resonator is "no longer wanted"
[18:49:25] <_methods> hahah
[18:49:36] <_methods> they threw them away?
[18:49:39] <ssi> yeah.
[18:49:52] <SpeedEvil> you mean sold, or actually threw in the garbage?
[18:49:55] <_methods> who the hell does he work for lol
[18:50:06] <_methods> dept of defense lol
[18:50:07] <ssi> SpeedEvil: the way he said it, they actually threw them in the garbage
[18:50:12] <SpeedEvil> Jesus
[18:50:14] <ssi> like "they were laying out in our scrap pile but now they're not anymore"
[18:50:26] <_methods> wtf were they using yags for?
[18:50:46] <Connor> yags ?
[18:50:50] <_methods> yags had a horrible name for a long time
[18:50:56] -!- DenSchub has quit [Ping timeout: 260 seconds]
[18:51:06] <_methods> ytterium arsenide gallium or something like that
[18:51:06] <ssi> well from what I've read, yag is better for most metals
[18:51:16] <_methods> yag is catching back on
[18:51:20] <ssi> it's less power efficient
[18:51:24] <_methods> all the big laser makers are movign back to them
[18:51:28] <ssi> but 1um is better absorbed by metal
[18:51:40] <Connor> what does yag stand for ?
[18:51:42] <_methods> http://en.wikipedia.org/wiki/Nd:YAG_laser
[18:51:56] <_methods> neodymium-doped yttrium aluminium garnet
[18:52:06] <_methods> heheh not what i said earlier lol
[18:52:13] <ssi> hehe
[18:52:18] <ssi> yag is basically the same as ruby laser
[18:52:24] <ssi> just another more different kind of ruby :)
[18:53:05] <ssi> I wonder what the rod dimensions and excitation sources are like in a 5kw yag
[18:53:53] <Connor> I just love the idea of Ruby lasers..
[18:54:08] <_methods> i think alot of them are using led's now
[18:54:11] <Connor> I mean.. the SciFi of it and all.
[18:54:14] <ssi> yeah probably so
[18:54:27] <_methods> i think that's what one of the techs was telling me
[18:54:33] -!- rob_h [rob_h!~robh@] has joined #linuxcnc
[18:54:37] <ssi> actually I think maybe they're even using laser diodes
[18:54:49] <ssi> I imagine the coherency of a laser diode means less loss
[18:55:00] <_methods> yeah i have no idea anymore i used to pay attention to that stuff
[18:55:03] <ssi> the problem with flashtubes is you have to contain the whole assembly in a good reflector or else you lose a lot of the output
[18:55:08] <_methods> now i just don't care unless it stops cutting
[18:55:11] <ssi> heheh I hear ya
[18:55:26] <ssi> CO2 lasers seemed like magic when I first got into this, but now that I understand them, they're actually very very simple
[18:55:27] -!- WyrM has quit [Read error: Connection reset by peer]
[18:55:36] <_methods> yeah
[18:55:44] <_methods> pump light into chamber of exicitatory gas
[18:55:48] <_methods> bounce around
[18:55:51] <_methods> cut metal
[18:55:51] <_methods> lol
[18:55:56] <ssi> well co2 doesn't pump light in
[18:55:59] <ssi> it makes its own light
[18:56:25] -!- WyrM [WyrM!wyrm@bnc.wyrm.net.br] has joined #linuxcnc
[18:56:25] -!- WyrM has quit [Changing host]
[18:56:25] -!- WyrM [WyrM!wyrm@unaffiliated/wyrm] has joined #linuxcnc
[18:56:37] <ssi> the high voltage through the tube excites nitrogen in the gas, and raises the co2 to a higher energy level, and when the co2 drops back down in level it gives off photons in a particular direction
[18:56:44] <ssi> then the bounce around etc
[18:56:44] <ssi> :)
[18:57:04] <ssi> but it jus works like a long-wavelength neon sign
[18:57:13] <ssi> plus the bouncing and the cutting and the nice lady
[18:57:37] <_methods> heheh
[18:58:50] <_methods> all i know is when they break it ends up costing a forklift full of money to fix
[18:59:05] <ssi> yeah :/
[18:59:21] <ssi> at least my little machine only uses $40 lenses from china
[18:59:30] <ssi> and doesn't have enough power to destroy one because it was dirty
[18:59:48] <_methods> oh you don't have to worry about poppin lenses?
[18:59:50] <_methods> that's good
[18:59:58] <ssi> hasn't happened yet
[19:00:05] <_methods> what are the lenses made of for those?
[19:00:07] <_methods> znse?
[19:00:11] <ssi> and I've had to pull it and clean it a few times due to not having the air assist running and getting smoked up
[19:00:14] <ssi> yeah znse
[19:00:17] <_methods> yeah
[19:00:23] <ssi> mirrors are all gold sputtered silicon
[19:00:24] <_methods> don't breathe that if you pop one
[19:00:32] <ssi> lol
[19:00:33] <_methods> wear a mask if you drop one too
[19:00:38] <ssi> good to know
[19:00:41] <_methods> yeah
[19:00:45] <_methods> highly carcinogenic
[19:00:57] <ssi> heh everything I deal with is carcinogenic
[19:01:00] <ssi> I'm not gonna live past 30
[19:01:05] <ssi> (shit I already am past 30)
[19:02:52] <_methods> heheh
[19:03:31] <_methods> http://www.2spi.com/catalog/msds/msds01815.html
[19:03:39] <_methods> Section 11: Toxicological Information
[19:03:40] <_methods> Summary: Considered to be highly toxic to humans and animals.
[19:03:44] <_methods> hehe
[19:03:50] <_methods> dont' eat it
[19:04:06] <ssi> it says "considered to be highly toxic"
[19:04:09] <ssi> an dthen "we don't know why"
[19:04:10] <ssi> hahah
[19:04:17] <_methods> haha yeah
[19:04:49] <_methods> all i know is that at every laser school i've been to they STRESS not to get into it
[19:04:58] <_methods> at all
[19:05:02] <ssi> yeah
[19:05:15] <ssi> I imagine it's fine in crystalline form, just powdered that's an issue?
[19:05:50] <_methods> well when a lens blows up it turns into smoke and dust
[19:05:55] <_methods> and if you drop one
[19:06:01] <_methods> it will like explode into dust
[19:06:02] <ssi> right
[19:06:26] <_methods> i mean it will make chunks but you can see the dust fly from it
[19:06:31] <ssi> sure
[19:06:41] <_methods> man i had a guy drop a brand new one right out of the box
[19:06:45] <_methods> i was fuckin livid
[19:06:50] <ssi> I'm sure!
[19:06:54] <_methods> he smoked the old lens
[19:06:55] <ssi> I bet yours were a lot more money than mine too
[19:06:59] <_methods> then drops the new one
[19:07:04] <_methods> $3k
[19:07:07] <ssi> ouch
[19:07:10] <_methods> yeah
[19:07:27] <ssi> mine are like $40
[19:07:33] <ssi> but I have to wait AGES to get them
[19:07:37] <ssi> I have four lenses
[19:07:37] <_methods> yeah but still if you have to order one
[19:07:43] <ssi> 1.5, 2, 3, and 4"
[19:07:46] <_methods> i always keep at least 3
[19:07:56] <skunkworks_> we cleaned our lenses with acetone and cotton balls.
[19:07:57] <ssi> the 4" is too long to effectively use
[19:08:00] <_methods> ours are 5" and 7.5"
[19:08:03] <ssi> skunkworks_: that's how I cleean mine too
[19:08:17] <_methods> yeah i use lens paper the cotton balls tend to scratch
[19:08:19] <ssi> _methods: what sort of depth of field do you get with those?
[19:08:23] <ssi> those'd be REALLY long on my machine
[19:08:26] <ssi> inches of DOF
[19:08:33] <_methods> well for us the 5" is for thin metal
[19:08:41] <_methods> and the 7" is like your all purpose lens
[19:08:54] <ssi> my 2" lens will almost but not quite cut 1/2" plywood reliably
[19:08:54] postaL is now known as postaL_offline
[19:08:57] <_methods> we tend to leave the 7" in unless we're doing large runs of thin stuff
[19:09:06] <ssi> the 3" cuts 1/2" nicely, and 3/4" marginally
[19:09:15] <_methods> yeah i'd use my 3" for everything then
[19:09:18] <ssi> my 1.5" has a 30kw/mm^2 60um spot
[19:09:22] <_methods> and just play with your feed rates
[19:09:31] <_methods> and focus
[19:09:38] <ssi> well the problem I have is that my bed height is fixed
[19:09:46] <skunkworks_> we cut mostly 3/4 inch plywood for dieboards.
[19:09:48] <ssi> and I have limited focus travel range with the 3" lens
[19:09:53] <skunkworks_> 5 inch focal iirc
[19:10:00] <skunkworks_> been a while since I have done anything with it.
[19:10:03] <ssi> I need to rebuild the table with a traveling bed Z
[19:10:07] <_methods> yeah i'd put a micrometer head on that focal head
[19:10:16] <_methods> so you can get an adjustable height
[19:10:26] <ssi> I have adjustable height
[19:10:51] <ssi> see thing is, the short lens doesn't reach as far, but I use it with thinner materials
[19:10:58] <ssi> the long lens reaches too far, but I use it with thicker materials
[19:11:01] <ssi> so those two things are at odds
[19:11:19] <ssi> when I designed the machine, I designed it around a 2" lens and didn't plan on switching lengths
[19:11:22] -!- knu2xs_ has quit [Ping timeout: 240 seconds]
[19:11:26] <_methods> ahhh
[19:11:35] <_methods> but what does taht matter if you have an adjustable head?
[19:11:49] <ssi> because the distance between the bottom of the head and the bed is fixed
[19:11:59] <ssi> the lens carrier can move up and down
[19:12:01] <ssi> but not enough
[19:12:06] <_methods> ohhh
[19:12:12] <ssi> it's only like 2.5" of adjustment range
[19:12:13] <_methods> yeah i'd redesign that
[19:12:21] <_methods> or make the bed move
[19:12:23] <ssi> and obviously you can't really raise up the head, because the whole beam path would have to raise
[19:12:27] <ssi> so the bed has to move
[19:12:50] <_methods> looks like it would be easier to change the lens carriage
[19:12:56] <ssi> yeah probably
[19:13:01] <ssi> it's just going to require a lot of structural work
[19:13:20] <ssi> plus my bed contains my downdraft exhaust currently
[19:13:32] <ssi> I honestly might end up having to completely redesign the table frame
[19:13:37] <_methods> hahah it's alaways something
[19:13:44] <_methods> it can never be easy
[19:13:44] <ssi> so it's not a high priority right now :)
[19:14:07] <ssi> it's built out of extrusion, so it's not really the end of the world to scrap it and start over
[19:14:17] <ssi> can reuse practically all of it
[19:14:33] <ssi> also I built that machine in a room with a door too small to remove it
[19:14:40] <_methods> hehehhe
[19:14:41] <ssi> so at some point it's got to come to pieces anyway
[19:14:46] <_methods> never build a boat in the basement
[19:14:50] <ssi> yeah
[19:14:55] <ssi> I built an airplane in my garage
[19:14:59] <_methods> hahahah
[19:15:00] <ssi> so you'd think I'd know better at this point
[19:15:02] <ssi> :D
[19:15:38] <ssi> https://scontent-a-ord.xx.fbcdn.net/hphotos-frc3/v/t1.0-9/247629_10100172352152412_325887569_n.jpg?oh=dfb95e209831c79430f669400629e32f&oe=54F566B3
[19:16:16] <_methods> wow
[19:16:21] <_methods> yeah thats alot of work
[19:16:31] <_methods> you built the whole thing from scratch?
[19:17:21] <ssi> from a kit, yes
[19:17:32] <ssi> starts like this
[19:17:32] <ssi> https://www.vansaircraft.com/images/rv-7_standard_kit_lg.jpg
[19:17:41] <ssi> all from the aforementioned trumpf machines :)
[19:18:16] <_methods> good god that's a lot of rivets
[19:18:20] <ssi> yeah
[19:18:28] <ssi> folks have estimated around 10k rivets
[19:18:33] <_methods> jeebus
[19:19:26] <ssi> honestly the airframe is the easy part
[19:19:31] <ssi> now I'm into the hard stuff
[19:19:37] <ssi> systems, interior, finishing work
[19:19:44] <ssi> the devil's in the details
[19:19:49] <_methods> um yeah
[19:20:03] <ssi> I'm learning how to do upholstery work
[19:20:04] <_methods> like your life counts on it details lol
[19:20:04] <ssi> https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xfp1/t31.0-8/1273558_10100489798108172_5430486084508652685_o.jpg
[19:20:10] <ssi> those are for my cherokee, as practice for the RV :)
[19:20:52] <ssi> heh there's not so many life threatening details
[19:21:07] <ssi> it's more like "make sure I don't have to climb under this panel once I rivet the topskins on" details :)
[19:21:15] <ssi> the airplane itself is quite solid
[19:21:21] -!- karavanjo has quit [Read error: Connection reset by peer]
[19:21:36] <ssi> short of getting the fuel system right and the controls rigged correctly, there aren't many details that will surprise murder you
[19:21:57] <_methods> $90k just for a kit
[19:21:58] <_methods> ouch
[19:22:05] <ssi> where do you see that? :P
[19:22:05] <_methods> then you got all the other stuff too
[19:22:14] <ssi> rv7 kit is in the neighborhood of 22k
[19:22:16] <ssi> maybe a bit more these days
[19:22:17] <_methods> i'm lookin at the rv-14
[19:22:21] <ssi> oh
[19:22:27] <ssi> quickbuild I assume
[19:22:32] <_methods> no idea
[19:22:46] <_methods> oh that's completed
[19:22:52] <ssi> https://www.vansaircraft.com/public/kit-prices.htm
[19:23:06] <ssi> $21k before the finish kit, which I don't think they've released yet
[19:23:12] <ssi> probably around $28k for the RV14
[19:23:15] -!- knu2xs__ has quit [Ping timeout: 272 seconds]
[19:23:23] <ssi> $22,075 for RV7
[19:23:45] <_methods> not a poor mans hobby for sure
[19:23:51] <ssi> no, not really
[19:23:56] <ssi> but I'm not exactly rich
[19:23:58] <_methods> i'd have to sell one of my polo horses lol
[19:24:04] <ssi> I spread it out over many years
[19:24:07] <ssi> $6-7k at a time
[19:24:21] <ssi> lol polo horses can be a quarter million bucks
[19:24:41] <_methods> i odn't have any polo horses lol
[19:24:47] <ssi> hahah
[19:24:51] <ssi> my mom used to groom for polo
[19:24:54] <ssi> I grew up around them
[19:24:58] <ssi> personally I Hate horses :D
[19:25:14] <_methods> bastards will bite you
[19:25:16] <_methods> and kick you
[19:25:19] <ssi> and throw you
[19:25:23] <ssi> which is what really put me off them
[19:25:25] <ssi> when I was a kid
[19:26:01] -!- jduhls has quit [Quit: Leaving]
[19:26:35] <ssi> amazing thing about the kit planes though is that it unchains you from the part25 certification stuff
[19:26:47] <ssi> which means you can run modern avionics without spending hundreds of thousands of dollars
[19:26:54] <ssi> and the modern avionics have gotten very very good
[19:27:16] <ssi> this is what's in my rv
[19:27:17] <ssi> http://www.grtavionics.com/horizonhxr.html
[19:28:16] <ssi> https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpf1/t31.0-8/706207_956207496062_428749677_o.jpg
[19:28:28] <ssi> in my shiny carbon fiber panel
[19:28:29] <ssi> https://scontent-b-ord.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/252382_953226929142_1486157906_n.jpg?oh=f329e2f2255dd1808161d6b9e2634536&oe=54F371E9
[19:32:40] <Connor> Wow. A Flat panel as a control in a plan.. still thought they used gauges and stuff..
[19:33:55] <ssi> nah glass is very common these days
[19:34:03] <ssi> it's just UNHOLY EXPENSIVE in the certified varieties
[19:34:20] <Connor> Is that a certified one?
[19:34:29] <ssi> nope, that's all experimental
[19:34:43] <ssi> comparable certified glass is about $100k
[19:34:44] <dirty_d> whats the deal with this error? error: Tk img::png not found!
[19:34:47] <ssi> I paid $7k for that setup
[19:35:04] <dirty_d> is there a separate tk png library?
[19:35:44] <jthornton> what's the error from?
[19:35:54] <Connor> Does it being experimental require you to have a different license, or special permit or something ?
[19:36:11] <ssi> you can only use experimental avionics in experimental aircraft
[19:36:17] <dirty_d> jthornton, ./configure
[19:36:40] <Connor> and, kit planes aren't experimental... ?
[19:36:45] <ssi> they are experimental
[19:36:46] <dirty_d> i dont see anything obvious in the package repos
[19:36:48] <ssi> that's why I can use it :P
[19:37:12] <ssi> but I can't, for instance, put a GRT EFIS in my cherokee, because it's certified
[19:37:12] <Connor> okay.. But, I couldn't put that in a Cessna
[19:37:15] <ssi> right
[19:37:25] <Connor> That's stupid.
[19:37:42] <jthornton> what are you building? master some branch or what?
[19:37:42] <ssi> perhaps
[19:37:47] <ssi> but that's how the government works
[19:38:05] <PCW> sudo apt-get install libtk-img
[19:38:20] <ssi> but here, you can buy this cessna 172SP which came with a g1000 glass cockpit
[19:38:20] <ssi> http://www.controller.com/listingsdetail/aircraft-for-sale/CESSNA-172S-SKYHAWK-SP/2014-CESSNA-172S-SKYHAWK-SP/1285159.htm
[19:38:24] <ssi> that's all certified
[19:38:33] <ssi> and only $360,000! what a bargain!
[19:38:55] <dirty_d> PCW, im on arch, I dont see any packages named anything like that
[19:39:14] <Connor> ssi: Yikes
[19:39:40] <ssi> Connor: the primary difference is who gets sued when someone dies
[19:39:53] <ssi> that's where all the cost difference lies
[19:39:58] <ssi> tort insurance and certification costs
[19:40:07] * jthornton doesn't even know what an arch is
[19:40:23] <ssi> arch linux is a distro that's popular on embedded boards
[19:40:39] <jthornton> ah ok
[19:41:01] <jthornton> must be that machinekit thing
[19:41:24] <ssi> I'm headign home before traffic ruins my life
[19:41:25] <ssi> bbiab :D
[19:42:29] <Connor> PCW Would it be hard to swap the P3 right angle connector on the 5i25 to a straight one so I that I would have access to it inside the enclosure?
[19:42:53] <PCW> Yes...
[19:43:39] <dirty_d> tkimg was the pkg i needed
[19:43:58] <dirty_d> it doesnt like that i have python3 now, lol
[19:44:01] <Connor> PCW Looking at it.. Looks like the solder flowed on both sides.. so, that would make it hard..
[19:45:08] <PCW> hard to remove without damaging the plated through holes
[19:45:25] <Connor> Yea.
[19:45:43] <PCW> designed for a standard closed box PC
[19:46:21] <PCW> The header can be used instead if you just need one
[19:46:28] <PCW> one connector
[19:47:19] <Connor> Yes, Which I'm planning on using.. but.. in the future, I'm going to need another encoder.. and I'll have to use the P3.. and trying to figure out easy way to access it without having to loop it back into the case.
[19:48:37] <PCW> use a 7I92 instead of 5I25 :-)
[19:49:04] <PCW> then you can mount it anywhere
[19:49:39] <Connor> Yea, well.. I didn't know how mature it's drivers were.. and I already have the 5i25.
[19:50:17] -!- sumpfralle has quit [Ping timeout: 260 seconds]
[19:57:46] -!- balestrino [balestrino!~balestrin@host170-127-dynamic.53-79-r.retail.telecomitalia.it] has joined #linuxcnc
[19:58:15] -!- _balestrino [_balestrino!~balestrin@host170-127-dynamic.53-79-r.retail.telecomitalia.it] has joined #linuxcnc
[19:58:19] -!- knu2xs___ has quit [Quit: Be back later ...]
[19:59:47] -!- afiber__ [afiber__!~sabayonus@p2003005BE9009933BE5FF4FFFE4A972D.dip0.t-ipconnect.de] has joined #linuxcnc
[19:59:49] -!- jamesarm97 has quit [Ping timeout: 255 seconds]
[20:00:29] -!- jamesarm97 [jamesarm97!~jamesarm9@cpe-098-025-103-086.sc.res.rr.com] has joined #linuxcnc
[20:01:57] -!- balestrino has quit [Ping timeout: 245 seconds]
[20:05:39] -!- jamesarm97 has quit [Ping timeout: 245 seconds]
[20:06:39] -!- jamesarm97 [jamesarm97!~jamesarm9@cpe-098-025-103-086.sc.res.rr.com] has joined #linuxcnc
[20:21:31] -!- Valduare has quit [Quit: Valduare]
[20:23:44] -!- ve7it [ve7it!~LawrenceG@S01060014d19d0b68.pk.shawcable.net] has joined #linuxcnc
[20:25:57] -!- _balestrino has quit [Ping timeout: 272 seconds]
[20:29:48] -!- `Nerobro_ [`Nerobro_!~wolfeman@fg300a.skylan.net] has joined #linuxcnc
[20:31:28] -!- sumpfralle [sumpfralle!~lars@p5B2CDAA9.dip0.t-ipconnect.de] has joined #linuxcnc
[20:32:47] -!- `Nerobro has quit [Ping timeout: 245 seconds]
[20:41:19] -!- Valen [Valen!~Valen@c211-30-128-202.blktn6.nsw.optusnet.com.au] has joined #linuxcnc
[20:54:05] <ssi> back
[20:54:09] <ssi> time to check out these BE drives
[20:54:36] -!- pfred1 [pfred1!~pfred1@unaffiliated/pfred1] has joined #linuxcnc
[20:54:57] <pfred1> making progress over here
[20:55:31] <ssi> that's good to do
[20:57:37] <pfred1> has anyone written up a step by step tutorial for how to home the machine before cutting a job, or are we supposed to just stumble around figuring it out?
[20:57:49] <ssi> what do you mean?
[20:57:54] <ssi> homing should be as simple as "home all"
[20:57:59] <ssi> or are you talking about touching off your part?
[20:58:12] <pfred1> I don't have limit switches
[20:58:28] <pfred1> I might someday but not now
[20:58:50] <ssi> then home is wherever you hit the button :)
[20:58:50] <syyl_> limit switch != home switch
[20:59:05] <pfred1> syyl_ they can be
[20:59:49] <pfred1> ssi that's what I've been doing I've been kind of guessing my best as far as homing goes
[21:00:09] <ssi> in your case home doesn't really matter
[21:00:10] <pfred1> I'm thinking there has to be a better way though
[21:00:17] <ssi> you just won't have any sort of repeatability between homes
[21:00:21] <ssi> what sort of machine is it?
[21:00:27] <pfred1> a 3 axis router
[21:00:50] <syyl_> you try to figure out homing but dont have reference/limit switches?
[21:00:51] <syyl_> hmm!
[21:00:55] <pfred1> up, down, left, right, back, and forth
[21:01:15] <ssi> does that give you 30 lives?!
[21:01:26] <pfred1> I can't say as i follow
[21:01:32] <ssi> never mind... bad jokes are bad
[21:01:57] * pfred1 is a tough crowd
[21:02:02] <ssi> :)
[21:02:10] <pfred1> right about now anyways
[21:02:46] <syyl_> you could move your axis to a defined position via jog
[21:02:47] <pfred1> I just got the machine running and I'm drawing on paper still
[21:02:48] <syyl_> and hit home
[21:02:59] <syyl_> but thats
[21:03:01] <syyl_> hmm
[21:03:01] <pfred1> yeah that's what I've been doing
[21:03:13] <syyl_> not a good way
[21:03:21] <pfred1> I have marks on the machine for the centers and I center stuff except for the Z
[21:03:28] <pfred1> that I start on the work surface
[21:03:43] <syyl_> Oo
[21:03:55] <syyl_> i think you puzzle it with touching off
[21:03:56] <pfred1> it is all very experimental at this stage I'm looking for a more sane proceedure
[21:04:23] <syyl_> touching off is the procedure to get the zero of your workpiece
[21:04:23] <pfred1> yeah I can't figure out what touching off is about I suppose either
[21:04:37] <syyl_> homing is just to tell the machine where it is
[21:04:38] <ssi> well normally, homing sets up your machine coordinate system
[21:04:41] <ssi> the absolute coordinates
[21:04:41] <pfred1> I imagine it is something like that but how it works I haven't figured out yet
[21:04:49] <ssi> and then touching off sets up your part coordinate system
[21:04:59] <pfred1> I hit the button and a dialog box popped up with numbers in it
[21:05:14] <ssi> when you do normal G0 G1 etc, they act in terms of your current coordinate system, such as G54
[21:05:19] <ssi> probably you're in G54 by default
[21:05:29] <pfred1> how would I know?
[21:05:42] <syyl_> look in the mdi
[21:05:43] <ssi> on the MDI pane, F5
[21:05:49] <ssi> there's as "active g-codes" box
[21:05:50] <syyl_> there you will find the active g-codes
[21:05:53] <ssi> and G54 is likely in there
[21:05:55] <pfred1> OK I'll go look bbiab
[21:06:00] -!- FinboySlick has quit [Quit: Leaving.]
[21:06:18] <syyl_> (i bet thats in the documentation ;) )
[21:06:42] <ssi> agh I left my box of tricks at the airport
[21:06:47] <_methods> or just go to mdi and put in g54
[21:06:55] <_methods> then you'll know fo sho
[21:07:19] <ssi> all my dsub housings and crimp pins
[21:07:20] <ssi> boooo
[21:11:29] -!- tronwizard has quit [Ping timeout: 260 seconds]
[21:13:18] <pfred1> OK I found a tab in Axis labeled MDI http://i.imgur.com/ZxSXUut.png
[21:14:16] <jthornton> pfred1, http://www.gnipsel.com/linuxcnc/g-code/index.html
[21:14:18] <ssi> yeah, see the G54 in the box?
[21:14:21] <pfred1> am I G92?
[21:14:34] <pfred1> in Active G-Codes?
[21:14:37] <ssi> yeah
[21:14:40] <pfred1> yes
[21:14:43] <ssi> and also in your DROs
[21:14:56] <pfred1> oh yeah all the way to the left
[21:15:03] -!- tronwizard [tronwizard!tronwizard@] has joined #linuxcnc
[21:15:07] <pfred1> I never noticed that before!
[21:15:51] -!- asdfasd [asdfasd!~332332@] has joined #linuxcnc
[21:17:13] <pfred1> jthornton this looks like what I'm loking for thanks!
[21:17:55] <pfred1> heh I figured out the marks on my own
[21:18:24] -!- tom_o_t has quit [Ping timeout: 260 seconds]
[21:22:28] <jthornton> your welcome
[21:22:35] <pfred1> what is the dowel method?
[21:24:25] <jthornton> use a dowel of known size to set the Z offset by raising the tool slowly until the dowel just slides under
[21:24:40] <jthornton> then touch off the size of the dowel
[21:25:20] <Deejay> gn8
[21:25:43] -!- Deejay has quit [Quit: bye]
[21:26:56] -!- mhaberler [mhaberler!~mhaberler@91-114-146-135.adsl.highway.telekom.at] has joined #linuxcnc
[21:27:29] <pfred1> ah ha
[21:30:33] -!- tom_o_t has quit [Changing host]
[21:33:33] -!- mhaberler has quit [Quit: mhaberler]
[21:35:06] -!- mhaberler [mhaberler!~mhaberler@91-114-146-135.adsl.highway.telekom.at] has joined #linuxcnc
[21:36:37] -!- acdha has quit [Ping timeout: 265 seconds]
[21:37:28] -!- mhaberler has quit [Client Quit]
[21:43:51] -!- sumpfralle has quit [Ping timeout: 272 seconds]
[21:45:06] -!- sumpfralle [sumpfralle!~lars@p5B2CDAA9.dip0.t-ipconnect.de] has joined #linuxcnc
[21:48:01] -!- jduhls has quit [Quit: Leaving]
[22:01:38] -!- tom_o_t_ has quit [Quit: Leaving]
[22:05:11] <ssi> PCW: think it's worth bringing the current monitor pins of my servo drives to analog ins on the 7
[22:05:14] <ssi> 7i77
[22:05:45] <ssi> current scaling on that pin is 4A/V
[22:05:58] <ssi> can be reduced to 2A/V
[22:06:25] <PCW> Probably not too useful as they are probably bipolar (and 7I77 inputs are unipolar)
[22:06:28] <ssi> actually no I think it goes to 8A/V, which'd be less useful
[22:06:49] <ssi> hm it doesn't specify whether it's bipolar but that would make sense
[22:08:22] -!- f1oat has quit [Ping timeout: 240 seconds]
[22:10:05] * MrSunshine desoldered a frekkin cpu today.... =)
[22:10:13] <MrSunshine> over 200 pins ... beat that! =)
[22:10:21] <ssi> ugh these KK pins are tape, and it's metal tape, stamped out of one piece
[22:10:25] <ssi> and they're impossible to cut free cleanly
[22:10:31] <MrSunshine> http://ibin.co/1eQVDTYhSwJq made a small tool for it :P
[22:10:59] -!- knu2xs___ has quit [Quit: Be back later ...]
[22:18:21] -!- zzolo has quit [Quit: zzolo]
[22:20:33] -!- chillly has quit [Quit: Ex-Chat]
[22:45:52] -!- theorbtwo has quit [Ping timeout: 255 seconds]
[22:49:20] -!- Tecan has quit [Ping timeout: 250 seconds]
[22:59:05] -!- erve has quit [Remote host closed the connection]
[23:01:27] -!- karavanjo has quit [Ping timeout: 246 seconds]
[23:03:37] -!- theorbtwo [theorbtwo!~theorb@cpc8-swin16-2-0-cust252.3-1.cable.virginm.net] has joined #linuxcnc
[23:10:30] -!- afiber__ has quit [Quit: Konversation terminated!]
[23:20:05] amnesic_away is now known as amnesic
[23:20:45] amnesic is now known as amnesic_away
[23:21:11] <ssi> cincinnati cat40 pull studs are like unicorn blood :(
[23:23:19] -!- micges-dev has quit [Quit: Wychodzi]
[23:23:37] -!- gennro [gennro!~gennro@ip68-224-129-2.lv.lv.cox.net] has joined #linuxcnc
[23:25:34] postaL_offline is now known as postaL
[23:26:19] -!- mightym has quit [Quit: ZZZzzz…]
[23:30:17] -!- zeitue [zeitue!~z@] has joined #linuxcnc
[23:34:15] -!- tinkerer has quit [Quit: Leaving.]
[23:36:05] -!- syyl_ has quit [Ping timeout: 272 seconds]
[23:36:56] -!- Tecan [Tecan!~fasdf@unaffiliated/unit41] has joined #linuxcnc
[23:41:48] -!- amnesic_away has quit [Quit: ZNC - http://znc.in]
[23:42:22] -!- Tecan has quit [Ping timeout: 240 seconds]
[23:45:24] -!- asdfasd has quit [Ping timeout: 260 seconds]
[23:47:44] -!- sumpfralle has quit [Ping timeout: 245 seconds]
[23:50:17] -!- tronwizard has quit [Ping timeout: 255 seconds]
[23:51:31] -!- sumpfralle [sumpfralle!~lars@p5B2CDAA7.dip0.t-ipconnect.de] has joined #linuxcnc
[23:55:57] -!- Nick001-shop has quit [Quit: ChatZilla 0.9.91 [Firefox 30.0/20140605174243]]
[23:56:35] -!- AR__ [AR__!~AR@] has joined #linuxcnc
[23:56:51] -!- sumpfralle has quit [Ping timeout: 272 seconds]
[23:57:48] -!- tronwizard [tronwizard!tronwizard@] has joined #linuxcnc