#linuxcnc | Logs for 2014-06-21

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[00:29:04] <zeeshan|3> http://www.cnc4pc.com/Store/osc/product_info.php?cPath=27&products_id=471
[00:29:07] <zeeshan|3> how come there is now ground wire
[00:29:11] <zeeshan|3> for this power supply
[00:34:35] <jdh> ask arturo
[00:35:25] <zeeshan|3> all i see is
[00:35:29] <zeeshan|3> two + + com and - -
[00:35:32] <zeeshan|3> for 65V out
[00:36:02] <jdh> you sure are picky.
[00:37:21] <jdh> see that mounting hole? use it.
[00:38:13] <zeeshan|3> um
[00:38:19] <zeeshan|3> !
[00:39:14] <jdh> <- back home from 8 days of florida diving.
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[01:07:03] <archivist> no way I would get that psu, overpriced, lack of input connector, caps look too small
[01:08:09] <archivist> and documentation does not match the picture
[01:15:37] <jdh> keling special
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[01:19:09] <archivist> I dont think that much cost cutting in manufacture deserves a CE mark either, so that has to be a fraud
[01:20:11] <archivist> https://www.gov.uk/ce-marking
[01:20:35] <archivist> a power supply with no input fuse?
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[01:29:19] <CaptHindsight> "Note: The transformer (only) is CE certified" heh
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[04:42:21] <zeeshan|3> theres 3.5 thou backlash in both X and Z
[04:42:54] <zeeshan|3> the way i checked for it is by pulling the entire axis ie for example the carriage in one direction and setting it to 0. pulled it in that direction again, and it would flex and return to 0. so i know all back lash was gone
[04:43:04] <zeeshan|3> and then i pulled it with one good tug in the opposite direction, and im getting 3.5 thou
[04:43:18] <zeeshan|3> what to do
[04:43:20] <Jymmm> pulled? as in physically?
[04:43:23] <zeeshan|3> yes
[04:43:29] <Jymmm> on what a router?
[04:43:33] <zeeshan|3> no my lathe
[04:43:59] <Jymmm> just spin the leadscrew and setup a TDI
[04:44:03] <zeeshan|3> i did
[04:44:07] <zeeshan|3> it does the same thing
[04:44:12] <zeeshan|3> if i move +.010 in one direction
[04:44:32] <Jymmm> Except you may be torquing one end
[04:44:38] <zeeshan|3> and command -0.010, it moves to -0.065
[04:44:49] <zeeshan|3> er it moves to 0.065 on the indicator
[04:45:05] <zeeshan|3> it's not consistent.. =/
[04:45:30] <Jymmm> is the setting soff?
[04:45:33] <Jymmm> off?
[04:45:41] <zeeshan|3> what setting
[04:45:46] <Jymmm> lcnc
[04:45:51] <zeeshan|3> you tell me
[04:45:56] <zeeshan|3> i was thinking its okay.. because
[04:46:01] <zeeshan|3> if i command +.010 it moves to 0.010
[04:46:01] <Jymmm> try 1.0"
[04:46:09] <zeeshan|3> if i command .020 it moves 0.020
[04:46:18] <Jymmm> ok
[04:46:32] <Jymmm> move it somewhere off end end
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[04:47:04] <Jymmm> setup yout TDI so it's like 0.100"
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[04:47:18] <Jymmm> command 4" away from the tdi
[04:47:28] <Jymmm> command -4"
[04:47:37] <Jymmm> or zero or whatever
[04:47:48] <Jymmm> you shoul be back on 0.100"
[04:47:51] <Jymmm> on the TDI
[04:48:05] <Jymmm> make sense?
[04:48:08] <zeeshan|3> yes
[04:48:21] <zeeshan|3> i gurantee you itll be at 0.965 :p
[04:48:26] <Jymmm> the 0.100" is so you can see if you gain/lose
[04:48:39] <Jymmm> ah
[04:48:51] <zeeshan|3> i mean 0.0965
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[06:46:39] <Deejay> moin
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[09:54:51] <jthornton> morning
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[10:49:42] * JT-Shop heads for Cuba
[10:50:02] <archivist> moooooore holiday!
[10:50:04] <zeeshan|3> morning
[10:50:09] <zeeshan|3> http://i.imgur.com/0YSvu8o.png
[10:50:10] <zeeshan|3> from this
[10:50:12] <zeeshan|3> to THIS
[10:50:33] <zeeshan|3> http://i.imgur.com/Ok44zCv.jpg
[10:50:35] <zeeshan|3> it works!
[10:50:35] <zeeshan|3> :D
[10:51:41] <archivist> another happy bunny, up late or up early playing
[10:51:46] <zeeshan|3> up late
[10:51:50] <zeeshan|3> been up all night
[10:51:52] <zeeshan|3> messing with this thing
[10:52:07] <zeeshan|3> i still need to learn how to deal with coordinate sy stems
[10:52:12] <zeeshan|3> they're quite confusing
[10:53:03] <archivist> you can ignore "convention"
[10:53:18] <JT-Shop> just a day ride
[10:53:33] <zeeshan|3> archivist: do you have a cnc lathe?
[10:53:37] <archivist> yes
[10:53:47] <JT-Shop> zeeshan|3, have you read my tutorials?
[10:54:05] <zeeshan|3> JT-Shop: no, keywords to search for on google? :]
[10:54:13] <JT-Shop> gnipsel.com
[10:54:14] <archivist> beer cave
[10:54:23] <zeeshan|3> archivist: when you put in your work piece say a 2" diameter rod that sticks out 3" from the chuck
[10:54:26] <JT-Shop> LOL yea and that too
[10:54:31] <archivist> :)
[10:54:38] <zeeshan|3> what is your 'home'?
[10:55:03] <archivist> my home is nothing like the touch off
[10:55:22] <JT-Shop> my Z home is far end of travel from spindle
[10:55:34] <archivist> I home to Z far right and X to the rear
[10:56:02] <zeeshan|3> so the homing in linuxcnc buttons
[10:56:08] <zeeshan|3> are only there to setup your 'soft limits'
[10:56:10] <zeeshan|3> right?
[10:56:15] <JT-Shop> yup
[10:56:18] <zeeshan|3> ahhh..
[10:56:22] <archivist> home sets up hard limits
[10:56:34] <JT-Shop> I home Z right and X toward me
[10:56:51] <JT-Shop> I have front tools
[10:56:56] <zeeshan|3> so you know when you type G00 X0 Y0
[10:57:05] <zeeshan|3> is it going to the home location
[10:57:10] <JT-Shop> not really
[10:57:24] <zeeshan|3> mine kept on going to whatever i set my home location to be
[10:57:26] <archivist> not if touched off sensibly
[10:57:39] <JT-Shop> it will only go to home if you type G53 G0 X0 Z0
[10:57:41] <zeeshan|3> i didnt mess around with touch off yet
[10:57:47] <zeeshan|3> i mgoing to go through your tutorials for the lathe
[10:58:02] <zeeshan|3> N0010 G94 G90 G20 N0020 G00 X0.0 Z0.0
[10:58:03] <archivist> touch off is the important bit
[10:58:06] <zeeshan|3> that's what my cam spit out
[10:58:08] * JT-Shop has to go take the dog out so I can leave
[10:58:14] <JT-Shop> talk to you guys later
[10:58:16] <zeeshan|3> cya jthornton
[10:58:50] <zeeshan|3> in this g code case, what coordinate system is the G code using? ;p
[10:58:52] <zeeshan|3> for home
[10:58:58] <zeeshan|3> er for x0 z0
[10:59:23] <archivist> because the homing is usually to some fixed point, you then touch off to your work 0,0
[10:59:48] <zeeshan|3> see i didn't touch off
[11:00:03] <zeeshan|3> so maybe by default, linuxcnc just uses home x0 z0 if you don't touch off
[11:01:22] <archivist> there are stored offsets too, please get used to touch off
[11:01:57] <zeeshan|3> i just need to review my notes from school!
[11:02:00] <zeeshan|3> its been a while :)
[11:02:31] <archivist> school! /me points at the linuxcnc manual
[11:02:36] <zeeshan|3> haha
[11:04:23] <archivist> I turn a diameter, measure and enter dia/2 into the x touch off dialog, this corrects for the tool as well
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[11:06:14] <archivist> with a quick change and a tool table, all the other tools I have offset from the start tool, others do something else with tool offsets and there may be changes afoot too
[11:06:35] <archivist> wear offsets
[11:07:03] <zeeshan|3> do you use a quick change tool post?
[11:07:05] <zeeshan|3> wedge or piston kind
[11:08:26] <archivist> I dont have pics, but it has two sides this http://www.chronos.ltd.uk/engineering-tools/2011/chronos-quick-change-toolpost-for-your-myford-lathe-ml7-super-7/
[11:10:12] <archivist> I need a load more holders to make it sensible, too many bit changes with only 4
[11:10:55] <zeeshan|3> can never have too many tool holders
[11:12:16] <zeeshan|3> wow im passing out
[11:12:20] <zeeshan|3> sleep time
[11:12:21] <archivist> I got my machine back in 2009 http://www.collection.archivist.info/searchv13.php?searchstr=starturn
[11:12:43] <zeeshan|3> cute little thing!
[11:12:44] <zeeshan|3> :D
[11:13:02] <zeeshan|3> http://www.collection.archivist.info/archive/DJCPD/PD/2013/2013_08_04_starturn_encoder/IMG_1631.JPG
[11:13:04] <zeeshan|3> whered you get that encoder
[11:13:07] <archivist> to effin small for some work
[11:13:19] <archivist> it is built in
[11:13:25] <zeeshan|3> ah
[11:13:43] <zeeshan|3> looks like it makes nice pieces
[11:14:49] <archivist> internal thread on the starturn http://www.collection.archivist.info/archive/DJCPD/PD/2012/2012_05_06_Leawood/IMG_1240.JPG
[11:15:20] <zeeshan|3> nice!
[11:17:45] <archivist> someone asked why you need the taper in out on G76, that thread is one reason
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[11:18:27] <zeeshan|3> what is it a pipe thread?
[11:19:01] <archivist> yes but a parallel version
[11:19:09] <zeeshan|3> ah
[11:19:33] <archivist> it exit taper means one can make blind threads with no safety groove
[11:19:43] <archivist> it/the
[11:21:50] <zeeshan|3> bah im so retarded
[11:21:56] <zeeshan|3> i read through the document and i finally get it.
[11:22:08] <zeeshan|3> i was supposed to touch off at the nose of my part
[11:22:30] <zeeshan|3> to define 0 0 at the center of rotation for x and z over all length
[11:22:30] <zeeshan|3> bah
[11:22:34] <zeeshan|3> will mess with it tommo
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[12:52:23] <Tom_itx> JT-Shop, up 67 isn't shorter?
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[14:22:53] <fenugrec> Can someone with a known-good system try this for me : 1- start latencytest; 2- from a terminal run "hdparm -t /dev/sda" ; the -t flag tests "buffered read speed". It takes about 3-4 seconds to run
[14:23:30] <fenugrec> On my system the latency jitter jumps up immediately from 6us to ~400us when I run hdparm. It seems I've isolated my problem
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[14:32:54] <archivist_> my latency has stayed below 12000 during hdparm -t
[14:35:17] <fenugrec> archivist_: ok thanks ! So my system is insane. Not sure how I'm going to fix this... ( I can't change any parameters with hdparm -- "inappropriate ioctl", wtf )
[14:36:06] <archivist> chuck another hard disk in see if it improves
[14:37:16] <fenugrec> archivist: I tried one, it sucked (it had bad sectors actually so I chucked it afterwards)
[14:37:31] <fenugrec> I think I have an Olde 2GB HDD somewhere
[14:37:50] <archivist> ew, bit small for ubuntu
[14:38:55] <fenugrec> I was going to say "No just fine" but I just checked... 2.5GB ! Man there has to be a conspiracy against me.
[14:40:29] <fenugrec> I think I'll just run from a stupid bootable USB drive; at least with that I had rock-solid <15us jitter.
[14:52:46] <XXCoder1> wonder if puppylinux or one of those other tiny linuxs would work with kinuxcnc
[14:52:52] <XXCoder1> with mods probably
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[14:57:30] <archivist> you have to screw about adding the realtime kernel
[14:58:11] <XXCoder1> I wonder if it is time to move linuxcnc to other packages
[14:58:46] <XXCoder1> puppylinux livecd runs faster than ubuntu on my laptop
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[15:09:26] <XXCoder1> finally figured how to tweak gantry router parts to mesh well
[15:09:46] <XXCoder1> calculate height from where I want to just touch surface when its all way down
[15:10:24] <XXCoder1> then make sure Z axis is set same distance (I would actually add bit height to fit limit switch dunno)
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[15:22:09] <XXCoder1> nice!
[15:22:13] <XXCoder1> lemme take screenshot
[15:24:12] <XXCoder1> https://dl.dropboxusercontent.com/u/53432577/cncideaRouterTweak.png
[15:25:13] <CaptHindsight> http://www.youtube.com/watch?v=hnDKqr-g3t4&feature=youtu.be Robot Control Integration Enhancements Using ROS-Industrial and MTConnect
[15:25:23] <XXCoder1> capt what ya think
[15:25:34] <XXCoder1> units is mm, 76 is just under 3 inches
[15:26:03] <XXCoder1> Z is now at highest position (machine zero I guess?)
[15:27:03] <CaptHindsight> looks like some sorta spindle holder mover
[15:27:33] <XXCoder1> the round thing is router
[15:27:42] <XXCoder1> store type, not too fancy
[15:28:11] <archivist> CaptHindsight, mtconnect seems sensible
[15:28:28] <CaptHindsight> XXCoder1: looks like ~0.5" thick plate
[15:28:56] <XXCoder1> one inch thick
[15:30:31] <XXCoder1> I got bunch of really fancy plywood
[15:30:46] <XXCoder1> 5 layers, each I would guess 1/5 inch each
[15:30:52] <XXCoder1> very strong.
[15:31:03] <CaptHindsight> XXCoder1: oh, I thought it was aluminum
[15:31:23] <XXCoder1> small peices though so cant use it everywhere lol too bad I certainly has enough
[15:31:37] <XXCoder1> not that rich yet unfortunately lol all you see that is brown is wood
[15:32:05] <CaptHindsight> should make for a good wood router and thin sheet metal
[15:32:25] <XXCoder1> yeah. thats why I think bit less than 3 inches height is fine
[15:33:15] <CaptHindsight> oh that's right you wanted to build this first and then build another with better materials
[15:33:26] <CaptHindsight> work your way up
[15:33:29] <XXCoder1> Though I'm thinking moving it up few more mm so it is OVER 3 inches not less
[15:33:45] <XXCoder1> yeah. get my skills up with basic model lol
[15:34:20] <CaptHindsight> granite epoxy casting is also inexpensive
[15:34:39] <XXCoder1> kinda yeah. but free wood is even cheaper
[15:34:51] <XXCoder1> free, expensive wood lol
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[15:34:56] <skroon> hi
[15:35:03] <skroon> anyone in here also using cambam to generate gcode?
[15:35:19] <XXCoder1> me, kind of. havent bought it, dunno if want to yet
[15:41:59] <CaptHindsight> XXCoder1: you have to start somewhere, my first soldering iron was a big 150W pistol made for soldering tubes that I used to tinker with old radios
[15:42:18] <XXCoder1> lol yep
[15:42:42] <CaptHindsight> XXCoder1: my first machines were all second hand Craftsman power tools
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[15:46:36] <renesis> internet machinists: what cheap bandsaw?
[15:46:46] <renesis> for cutting up stock for a micro mill
[15:47:14] <renesis> i have sears card so i was going to get first hand craftsman power tool
[15:48:35] <renesis> http://www.use-enco.com/CGI/INSRIT?PMAKA=199-9030&PMPXNO=953111&PARTPG=INLMK3
[15:48:47] <renesis> y/n/m?
[15:48:54] <CaptHindsight> renesis: if you're going to use it a lot get the longer warranty
[15:49:12] <CaptHindsight> Account Access Error @ enco
[15:49:59] <SpeedEvil> Have you reasd the manual?
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[15:51:01] <renesis> http://www.grainger.com/product/SCHEPPACH-Vertical-Band-Saw-36K001?s_pp=false&picUrl=//static.grainger.com/rp/s/is/image/Grainger/36K001_AS02?$smthumb$
[15:51:29] <CaptHindsight> http://www.3ders.org/articles/20140620-mit-llnt-3d-printed-ultrastiff-ultralight-material.html
[15:51:35] <renesis> speedevil: no im just kind of wonder if people have had any particularly bad experiences with any of the china bandsaws
[15:52:01] <SpeedEvil> used bandsaws can be quite inexpensive on ebay
[15:52:04] <CaptHindsight> renesis: bad castings, bearings
[15:52:16] <archivist> crappy blades
[15:52:24] <renesis> you buy blades
[15:52:42] <CaptHindsight> too many corners cut
[15:52:51] <renesis> because yeah at few jobs, the shops had jet shit, and even that shit would break
[15:52:56] <SpeedEvil> http://www.ebay.co.uk/itm/ELEKTRA-BECKUM-D-49716-BAND-SAW-295-ONO-/171363413574?pt=UK_Home_Garden_PowerTools_SM&hash=item27e60e2e46
[15:52:58] <CaptHindsight> they just don't last
[15:53:07] <renesis> tho the machines were kind of abused
[15:53:11] <XXCoder1> http://www.woodgears.ca/bandsaw/homemade.html
[15:53:17] <renesis> so im worried about getting random china shit
[15:53:25] <renesis> but my current solution is a power jigsaw
[15:53:27] <renesis> sucks
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[15:53:48] <CaptHindsight> I get bandsaws from craigslist
[15:53:58] <renesis> oh hmm
[15:54:09] <SpeedEvil> http://www.ebay.co.uk/itm/MULTICO-SINGLE-PHASE-240V-BANDSAW-IN-GWO-/131218366296?pt=UK_BOI_Building_Materials_Supplies_Carpentry_Woodwork_ET&hash=item1e8d395f58
[15:54:11] <CaptHindsight> look for brutes that might need some freshening
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[15:55:13] <SpeedEvil> http://www.ebay.co.uk/itm/171334595033?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT - is an excellent example of that
[15:55:28] <SpeedEvil> err - not that one
[15:55:42] <SpeedEvil> http://www.ebay.co.uk/itm/161311402552?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
[15:55:44] <SpeedEvil> That one :)
[15:55:48] <fenugrec> and buy quality blades with the correct tooth pitch for your need (i.e. 8 TPI will suck for sheet metal, etc.)
[15:56:19] <SpeedEvil> It's clearly been operated in that position, for example.
[15:56:41] <SpeedEvil> And while the table has bad surface rust, the roof of the building looks intact - so it won't have gotten wet
[15:57:00] <XXCoder1> flood?
[15:57:10] <SpeedEvil> naah.
[15:57:24] <SpeedEvil> That'll happen to cast iron if you don't protect it and leave it 10 years in an unheated building
[15:57:34] <CaptHindsight> http://wiki.ros.org/Industrial it overlaps Linuxcnc but ROS runs on the native controllers in the robots
[15:57:45] <CaptHindsight> archivist: ^^^
[15:57:46] <SpeedEvil> It is very light surface rust
[15:58:28] <CaptHindsight> archivist: the problem is having to support all those different robot controllers
[15:59:13] <CaptHindsight> archivist: vs Linuxcnc, but then you have to toss the native controller and replace with Linuxcnc hardware (PC + FPGA)
[15:59:37] <CaptHindsight> archivist: I guess it depends on what you goal is and starting point
[16:03:37] <XXCoder1> did anyone see the wood bandsaw link I posted? lol
[16:03:51] <XXCoder1> according to guy result was better than cheaper cast iron bandsaw
[16:04:06] <XXCoder1> but then guys selling plans for it. 21 bucks
[16:05:50] <SpeedEvil> Matthais is awesome
[16:07:30] <CaptHindsight> XXCoder1: and every reprap snake oil salesperson will tell you that it's going to change the world so buy their kit/plans/parts/krap
[16:08:08] <XXCoder1> usually but this guy is proven, quite a few others built from his plans
[16:08:35] <CaptHindsight> there an entire industry of snake oil disguised under the guise of maker-stuff
[16:09:10] <archivist> CaptHindsight, I see the mtconnect on the lathe/mill talking to a hal comp and linuxcnc and the robot as a separate problem
[16:10:34] <CaptHindsight> archivist: yes, that's where Linuxcnc could use a hook
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[16:11:40] <CaptHindsight> that's also why I was recently looking into the open SCADA applications
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[16:12:37] <CaptHindsight> linuxcnc controlling the individual machines but how to interconnect, manage and monitor them
[16:12:59] <SpeedEvil> http://www.woodgears.ca/bandsaw/homemade.html - above bandsaw
[16:13:16] <CaptHindsight> linuxcnc machines as part of a larger process
[16:14:13] <archivist> it seems that mtconnect is designed for just that
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[16:14:54] <CaptHindsight> archivist: I'm trying to see how far it goes. So far I only see the interconnect
[16:15:56] <archivist> one part which we currently do in gcode is the loop for multi part perhaps this needs thinking about
[16:15:59] <CaptHindsight> archivist: what i don't see is the SCADA and GUI
[16:17:16] <CaptHindsight> archivist: yes, I was asked just recently how to program and keep track of how many parts are made
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[16:17:25] <IchGuckLive> hi all B)
[16:18:08] <archivist> CaptHindsight, I have seen people mention counters a few times
[16:18:08] <XXCoder1> hey
[16:18:26] <IchGuckLive> sun is still up in germany as today the longest day of the year
[16:19:15] <XXCoder1> nice
[16:19:28] <XXCoder1> hey ich check this https://dl.dropboxusercontent.com/u/53432577/cncideaRouterTweak.png
[16:21:11] <CaptHindsight> XXCoder1: I'd make that bandsaw frame out of epoxy granite before wood, or at least a wood composite like engineer beams
[16:21:24] <CaptHindsight> engineered beams
[16:22:06] <XXCoder1> capt yeah but then guy said it was actually bit more rigid than cast iron
[16:22:07] <CaptHindsight> but if i was shipwrecked and thats all I had ....
[16:22:45] <CaptHindsight> not in his chart :)
[16:23:10] <CaptHindsight> or say compare a 1/4" cast iron beam against 8" pine beam
[16:24:05] <archivist> wood may have more damping but never more rigid than cast for the same shape
[16:24:34] <CaptHindsight> spider webs are several times stronger than steel (tensile)
[16:25:38] <CaptHindsight> now if we could only find giant spiders to spin 4" thick web
[16:26:03] <CaptHindsight> think of how this would revolutionize architecture :)
[16:26:30] <archivist> you have to grow fat arse spiders though
[16:27:47] <CaptHindsight> there are poorly enough made cast iron bandsaws around where you could make a wooded one as strong
[16:28:56] <CaptHindsight> but it's a waste of time unless stranded with only wood working tools and leftover bandsaw parts (motors, bearings etc)
[16:29:13] <CaptHindsight> or you just like wood
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[16:30:23] <IchGuckLive> i go wood bandsaw on monday about 15qm³
[16:30:37] <CaptHindsight> theoretically you could make a bandsaw out of cheese
[16:34:38] <LeelooMinai> Or cheese slices with a bandaw
[16:34:38] <CaptHindsight> http://www.woodgears.ca/bandsaw/cnc.html
[16:34:49] <CaptHindsight> Bandsaw vs CNC ^^
[16:37:23] <IchGuckLive> ive seen CNC bandsaws in Blackforest
[16:38:31] <pcw_home> That wooden bandsaw looks quite decent (stiff, quiet and low vibration)
[16:39:43] <CaptHindsight> better than the ones at HF :)
[16:40:07] <pcw_home> better than a standard decent cast iron 14"
[16:40:32] <pcw_home> quieter, lighter, stiffer
[16:41:46] <CaptHindsight> less durable, less stable, .... trade offs
[16:42:31] <XXCoder1> capt lol nice. guess cnc win
[16:43:04] <XXCoder1> if setup not included. but then if youre fixing to make say 10 of same parts cnc including setup would easily win
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[16:45:47] <CaptHindsight> there probably a business there for wood saws if they could be made as cheaply as cast iron
[16:46:27] <XXCoder1> yeah. I cant do price comprasions I dont know how much cast iron costs vs wood heh
[16:46:32] <CaptHindsight> they just need to outlast the 1 year warranty
[16:50:09] <CaptHindsight> http://www.amazon.com/Jet-JWBS-14SF-Band-Saw/dp/B00EI40946 is this what you get for $1500 new?
[16:50:16] <IchGuckLive> oh i got real expensiv wood for my windmill scale projekt
[16:51:32] <IchGuckLive> tropic Kambala 15Years Dryed at 500USD per 4x4x10 inch
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[16:52:44] <CaptHindsight> http://www.youtube.com/watch?v=E3AdR9Pt_Jo just use a DLP printer to print the frame and bake the polymer out
[16:54:11] <CaptHindsight> http://www.3ders.org/articles/20140620-mit-llnt-3d-printed-ultrastiff-ultralight-material.html
[16:58:33] <CaptHindsight> epoxy granite would be faster easier and less expensive, it would be heavy, but durable, rigid and very good dampening
[16:59:15] <CaptHindsight> wood would be lighter, larger but less durable
[17:00:46] amnesic_away is now known as amnesic
[17:03:17] <mozmck1> epoxy granite less expensive than wood? I'd have to see numbers to believe that.
[17:05:01] <CaptHindsight> less expensive than dlp printing and baking
[17:05:57] <CaptHindsight> granite is cheap , epoxy is ~$3lb
[17:06:01] <mozmck1> Oh, maybe so. Wood is remarkably durable.
[17:06:25] <mozmck1> I wood go with wood ;)
[17:06:43] <CaptHindsight> see there's a market
[17:07:05] <CaptHindsight> wood supplies for the wooden tool maker
[17:07:40] <mozmck1> market? I wouldn't pay for one - but if I were making one I'd go with wood over epoxy/granite. Actually, I would weld one up out of steel.
[17:08:25] <mozmck1> Before that though I'd buy an old good one for less than I could think of making one :) Just got a fairly new Delta 14" bandsaw at the flea market for $100
[17:09:12] <XXCoder1> I read website on how to make one, and total was bit over 400 bucks
[17:09:21] <XXCoder1> exoxy grinite that is
[17:10:38] <XXCoder1> found this lets see https://www.youtube.com/watch?v=SWZ4V2EYmzk
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[17:12:28] <CaptHindsight> XXCoder1: I could make one for for $1M
[17:12:42] <XXCoder1> lol anyone could
[17:12:49] <CaptHindsight> epoxy granite or wood
[17:13:50] <mozmck1> heh, watching that video - looks like he will more than $400 worth of time just getting the MDF off of the stuff!
[17:14:33] <XXCoder1> ignore the crystal woo stuff and this is interesting. https://www.youtube.com/watch?v=kjG1x1YgjMg
[17:16:35] <CaptHindsight> I can't find any wooden bandsaws for sale, not even in China, wonder why
[17:16:47] <XXCoder1> its nice way to use swarf actually
[17:16:50] <CaptHindsight> XXCoder1: you might be able to patent this
[17:17:13] <XXCoder1> you guys has lots alum swarf. can make nice alum swarf expoxy
[17:17:32] <mozmck1> heh, that would be interesting
[17:18:02] <XXCoder1> wonder if alum swarf epoxy is tough enough
[17:18:06] <CaptHindsight> aluminum epoxy composite
[17:18:45] <ssi> zeeshan|3: are you still here?
[17:18:48] <CaptHindsight> it depends on the aluminum particle shape and sizes and the type of epoxy, you can read research papers on the subject
[17:18:57] <XXCoder1> guess so lol
[17:19:33] <XXCoder1> CaptHindsight: even if its not very strong it'd look REALLY cool.
[17:19:48] <CaptHindsight> long fiber vs short, particles types and shape and sizes, it's well studied
[17:20:21] <XXCoder1> maybe strong if its well mixed, from small swarf and longer ones from drills
[17:20:25] <CaptHindsight> even orientation
[17:21:39] <Tom_itx> long stringy crap from lathes
[17:22:03] <Tom_itx> 'rats nest'
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[17:22:37] <ssi> I have tons of it
[17:22:55] <XXCoder1> ssi wanna try it? I dont have epoxy nor swarf alum lol
[17:23:01] <CaptHindsight> add glass fiber as well
[17:23:04] <XXCoder1> nor money tp buy any lol
[17:23:10] <ssi> epoxy is too expensive :)
[17:23:25] <IchGuckLive> hi scottycnc welcome to linuxcnc
[17:23:35] <ssi> the stuff I use is $120/gallon
[17:23:46] <CaptHindsight> pultrusions for structural applications they use clay as fillers
[17:23:57] <XXCoder1> how much pounds is one gallon? capt menioned 5 bucks a pound one
[17:24:11] <CaptHindsight> ssi: yeah end user, I pay $2-6/lb
[17:24:32] <CaptHindsight> 1 gal = 3.75L
[17:25:18] <ssi> 12lb per gallon
[17:25:24] <archivist> us gal (short changed size)
[17:25:41] amnesic is now known as amnesic_away
[17:25:55] <ssi> there are cheaper epoxies out there, but that's what I tend to use
[17:26:18] <CaptHindsight> I make them, and buy materials in drums
[17:26:19] <XXCoder1> for playing around I'd go for cheapest
[17:26:55] <scottycnc> anyone know if version 2.5.0 has all of support needed for mesa 7I76-5I25
[17:27:03] <ssi> scottycnc: it does
[17:27:19] <scottycnc> thanks ssi
[17:27:37] <scottycnc> is there any reason to upgrade to get the latest
[17:27:48] <ssi> I dunno, I haven't :)
[17:28:17] <pcw_home> If you use pncconf, later is probably better
[17:28:34] <pcw_home> Not sure what else changed
[17:31:13] <IchGuckLive> it is best to update to 2.5.4 as the new stepconf has a better pin declaration
[17:31:55] <scottycnc> ok
[17:32:12] <IchGuckLive> scottycnc: in 2.5.0 you may have to add the pin xml your own
[17:32:48] <IchGuckLive> there is a batch in the forum that makes all happen for you
[17:33:22] <scottycnc> so the latest live cd says 2.5.0
[17:33:30] <IchGuckLive> yes
[17:34:06] <IchGuckLive> go to system -> systemedit -> synaptic
[17:34:41] <IchGuckLive> press reload the packets
[17:34:53] <IchGuckLive> and then search for Linuxcnc
[17:35:14] <IchGuckLive> it shoudt show the 2.5.4 version to be updated
[17:35:26] <IchGuckLive> right click on it and update
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[17:35:47] <scottycnc> ok... looking to see whether a 2.5.0 to 2.5.4 update is supported
[17:36:17] <IchGuckLive> http://linuxcnc.org/index.php/english/forum/39-pncconf/21670-5i25-firmware-xml-files-for-pncconf
[17:36:29] <IchGuckLive> this are the files that work on 2.5.0
[17:37:00] <IchGuckLive> if do not like to go forum just ask we can give you the files at mailing
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[17:38:16] <scottycnc> ok thanks
[17:38:33] <IchGuckLive> NP we got lots of this combination in use
[17:38:42] <IchGuckLive> Most of us
[17:38:53] <scottycnc> had this mesa card sitting here for a couple months :)
[17:39:21] <IchGuckLive> dont forget to jumper the 5i25 to get power
[17:39:37] <scottycnc> ill have to reread the manual
[17:40:42] <IchGuckLive> scotty where in the world are you im in germany
[17:42:42] <scottycnc> usa
[17:42:51] <scottycnc> wie gehts
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[17:43:16] <IchGuckLive> oh GUT im in Ramstein near the USAFB
[17:43:16] <XXCoder1> usa here too heh
[17:44:14] <scottycnc> im in massachusetts
[17:44:22] <scottycnc> been to germany a few years ago
[17:44:38] <scottycnc> for 4 months... darmstadt
[17:45:09] <IchGuckLive> what are you going to build or run Mill Lathe Plasma...
[17:54:12] <scottycnc> ive got an existing mill...
[17:54:24] <scottycnc> was using tiny dc servos
[17:54:43] <scottycnc> found some 400W mitsubishi ac servos for cheap with drivers
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[17:55:36] <scottycnc> got all that working with a pulse generator..now want to run some actual g code
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[17:55:46] <IchGuckLive> nice this wil add lots of speed
[17:55:58] <IchGuckLive> but real servos best to go at 7i77
[17:56:05] <IchGuckLive> not step/dir
[17:57:22] <XXCoder1> https://www.youtube.com/watch?feature=player_embedded&v=ot0Cxmk2aa4
[17:58:06] <scottycnc> yeah.. went with step dir cause thats what i was familiar with
[17:58:37] <scottycnc> couldnt believe the speed with these
[17:58:47] <scottycnc> was using the encoder output from the dc servo motor to jog the axis
[17:59:06] <scottycnc> that cnd bender is sick
[17:59:07] <scottycnc> btw
[17:59:40] <IchGuckLive> ok im off public viewing soccer championship tonight BYE
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[18:02:17] <XXCoder1> yeah scott
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[18:26:30] <zeeshan|3> hi!
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[18:29:28] <archivist> zeeshan|3, a bit late to wake up
[18:29:33] <zeeshan|3> haha
[18:29:47] <zeeshan|3> i woke up dreaming about a tool crash
[18:29:48] <zeeshan|3> in cnc
[18:29:52] <zeeshan|3> and continuously press f1
[18:29:55] <zeeshan|3> and nothing stopping
[18:30:08] <archivist> press the esc key
[18:30:19] <LeelooMinai> Could be also a keyboard crash
[18:30:45] <zeeshan|3> archivist: im going to try 'touching off'
[18:30:45] <zeeshan|3> today
[18:32:06] <zeeshan|3> i need something nicer to make
[18:32:08] <zeeshan|3> other than a dildo
[18:32:24] <zeeshan|3> i think ill turn between centers and machine a handle for my drill press that's broken
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[19:07:23] <ssi> zeeshan|3: I saw your backscroll about lathe homes
[19:07:34] <ssi> zeeshan|3: I went through all that mess too, and here's what I came up with
[19:08:21] <zeeshan|3> ssi: honestly, i was just confused about what 'home' was
[19:08:31] <ssi> first, I pick some "reference tool"
[19:08:44] <zeeshan|3> when these guys told me machine coordinate 0,0,0 = home, i understood it
[19:08:47] <ssi> and I set up X homing so that machine home has X0 at the tip of that reference tool
[19:08:52] <zeeshan|3> cause that's what its been called before when i ran machines
[19:09:09] <ssi> that way, with the reference tool in the machine, if I jog to X1.000 and take a cut, then it'll turn a 2.000 diameter
[19:09:15] <ssi> that's how it is on my g0602
[19:09:47] <ssi> on my hardinge HNC, the centerline of the turret is colinear with the centerline of the spindle at X0
[19:10:23] <ssi> either way, that gives you a definite picture of what the machine coordinates are relative to the actual hardware
[19:10:30] <ssi> then your tool table has offsets that "move" the tip of whatever tool you're using
[19:11:03] <ssi> the goal of all this is to be able, for a given tool, to be able to go to an absolute position and take a cut and know beforehand what diameter it'll turn
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[19:11:28] <ssi> so for me, when everything is setup correctly, my G54 system has zero offset in X from my G53 system
[19:11:35] <ssi> ie there's no "touch off" for X
[19:11:45] <ssi> the only offset is the tool offset
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[19:12:12] <zeeshan|3> so let me make sure im understanding you right
[19:12:17] <ssi> for Z, my HNC is set up so that the face of the turret is touching the nose of the spindle at Z0
[19:12:28] <zeeshan|3> your reference tool is what you use to touch off your part
[19:12:30] <ssi> on the g0602 it's arbitrary, I just touch off in Z
[19:12:37] <zeeshan|3> and all your other tools are offset based on that reference tool?
[19:12:38] <ssi> no what I'm saying is I don't touch off
[19:12:42] <zeeshan|3> oh
[19:12:49] <zeeshan|3> let me re-read :P
[19:13:53] <ssi> but you could do it as well by touching off the reference tool and having all your other tool offsets be relative to that one
[19:14:31] <ssi> and the best way to "touch off" on a lathe is to take a light cut, measure the diameter of the finished piece, and then use touch off to set the X dimension to half that diameter
[19:14:55] <ssi> because that's the ACTUAL distance to high precision of your tool to the centerline
[19:15:16] <ssi> it took me a really long time to figure out a method for working with coordinate systems and tool changes on the g0602
[19:15:55] <zeeshan|3> hehe
[19:16:05] <zeeshan|3> i'm currently only using one tool
[19:16:32] <ssi> what kind of lathe is it?
[19:16:37] <archivist> we all sort of learn a way on our machines and get comfy...ish
[19:16:56] <ssi> lathes are kinda crazy
[19:17:11] <ssi> they definitely take a different mindset than mills or other cartesian machines
[19:17:25] <ssi> and even if you're used to running a manual lathe, cnc changes the game
[19:17:55] <archivist> I hate the cnc not being as quick and simple as manual
[19:18:06] <ssi> yeah
[19:18:11] <ssi> I've run my cnc like a manual lathe a lot
[19:18:12] <zeeshan|3> 12x36 chinese lathe :P
[19:18:15] <ssi> just running MDI by hand
[19:18:18] <ssi> and it's... dangerous :)
[19:18:29] <zeeshan|3> ssi, ive machined parts before on the mill
[19:18:33] <ssi> I've had some spectacular crashes that way
[19:18:34] <zeeshan|3> with just a pendant lol
[19:18:50] <zeeshan|3> it's like manual.... without the feedback.
[19:18:52] <ssi> zeeshan|3: what do you have for a toolpost?
[19:18:56] <ssi> some sort of quickchange ?
[19:19:00] <zeeshan|3> a piston type quick change
[19:19:03] <ssi> ok good
[19:19:21] <ssi> if you have enough toolholders, you can set up multiple tools and they'll repeat pretty well
[19:19:34] <ssi> what you're after is the nose of the tool being repeatable relative to the center of the toolpost bolt
[19:19:49] <ssi> what type of tool are you working with right now?
[19:20:50] <zeeshan|3> i''m working with a standard ccmt insert right hand turning tool
[19:20:56] <archivist> and hope you can keep the post square when you have to move it for a job
[19:21:15] <zeeshan|3> archivist: that was my next question
[19:21:21] <zeeshan|3> do you guys leave the tool post in one standard position
[19:21:28] <ssi> yeah, so I made a riser block for my lathe that replaces the compound slide
[19:21:29] <zeeshan|3> and never mess with it?
[19:21:33] <zeeshan|3> ssi pics?
[19:21:34] <archivist> use the cross slide edges
[19:21:35] <ssi> and there's a shoulder milled into it and a dust groove
[19:21:48] <ssi> the QCTP fits snugly against that shoulder, so it repeats in X
[19:21:52] <ssi> which is all I care about on that machine
[19:22:10] <ssi> zeeshan|3: so something else to keep in mind
[19:22:20] <ssi> the tool radius in the tool table
[19:22:23] <ssi> and radius compensation
[19:22:43] <ssi> doesn't matter as long as you're cutting square
[19:22:53] <ssi> but once you start trying to turn tapers or radiuses, that is hugely importan
[19:23:15] <ssi> without radius compensation, it treats the tool like it comes to an infinite radius point, but it of course doesn't
[19:23:29] <ssi> and so it'll actually cut tapers or radii oversize if you don't do path compensation
[19:24:38] <zeeshan|3> ahh!
[19:25:01] <zeeshan|3> cnc lathing is so much differnt than what im used to
[19:25:04] <ssi> yep!
[19:25:06] <zeeshan|3> cnc milling feels a lot more straight forward.
[19:25:22] <ssi> yeah... it's funny because I've built seven CNC machines at this point
[19:25:25] <ssi> and I have zero cnc mills :(
[19:25:30] <ssi> and they're definitely easiest
[19:25:42] <zeeshan|3> heheh
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[19:31:35] <zeeshan|3> ssi: what do you have as your 'reference tool'
[19:31:43] <zeeshan|3> a standard right hand indexable tool?
[19:31:56] <ssi> yeah
[19:32:00] <ssi> just the right hand tool I go to most of the time
[19:32:10] <zeeshan|3> you know what im thinking of buying..
[19:32:12] <zeeshan|3> this tool:"
[19:32:56] <zeeshan|3> http://www.youtube.com/watch?v=vLzax9sgvdg
[19:33:03] <zeeshan|3> its like the most universal tool :P
[19:33:12] <zeeshan|3> forward to 1min
[19:34:19] <XXCoder1> CaptHindsight: http://i814.photobucket.com/albums/zz63/monsoongecko/Orgonite%20Photos/DSC03633.jpg
[19:34:35] <XXCoder1> imange kitchen counters like that lol
[19:36:14] <XXCoder1> the article its from is full of woo people
[19:38:30] <ssi> zeeshan|3: here's my little lathe
[19:38:36] <ssi> only vid I have up, it's from 3 years ago :P
[19:38:37] <ssi> https://www.youtube.com/watch?v=SiwqBze1y-0
[19:39:06] <ssi> and here's the "big" one
[19:39:07] <ssi> https://www.youtube.com/watch?v=bT6WoCzcD_0
[19:39:36] <zeeshan|3> i like that tool
[19:39:41] <zeeshan|3> whats that insert
[19:39:46] <ssi> I think it's VNMG?
[19:39:52] <ssi> I like them cause they have good clearance for s tuff like that
[19:39:56] <zeeshan|3> yes
[19:40:36] <zeeshan|3> thats a shit load of coolant in the second video hehe
[19:40:41] <XXCoder1> yeah
[19:40:46] <zeeshan|3> 3 hoses!
[19:40:48] <XXCoder1> where does it go to? floor?
[19:41:02] <ssi> nah there's a tray, it filters and reuses
[19:41:07] <ssi> it's a full enclosure machine
[19:41:24] <XXCoder1> ssi: check link I posted to a pic. thats what metal swarf epoxy would look like
[19:41:25] <ssi> https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xaf1/t31.0-8/465123_811175720902_290089005_o.jpg
[19:41:33] <ssi> XXCoder1: yea I saw it
[19:41:43] <ssi> that pic is from before I converted it
[19:41:52] <syyl_ws_> i love those horrible big old cnc controlls :D
[19:41:54] <zeeshan|3> thats a monster!
[19:42:07] <ssi> I have a new machine with the same control
[19:42:10] <XXCoder1> ironic that its from woo site. it "does" stuff to physic energy apoparently lol
[19:42:16] <ssi> it's a diacro NC turret punch press
[19:42:25] <ssi> haven't done anything with it yet
[19:42:40] <ssi> oh here's another vid of the little guy running
[19:42:40] <ssi> https://www.youtube.com/watch?v=ywBOYxhBpSI
[19:42:50] <ssi> that's from very early when I first got the conversion done
[19:42:59] <ssi> but there's toolchanges in it
[19:43:35] <XXCoder1> unwatchable for me. too shaky camera
[19:43:40] <ssi> SORRY
[19:43:40] <zeeshan|3> your g0602 setup looks lkike mine
[19:43:48] <zeeshan|3> but you have a fancy chuck!
[19:43:58] <ssi> the 5C chuck?
[19:43:59] <ssi> it's handy
[19:44:01] <zeeshan|3> yes
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[19:45:02] <ssi> I made a homemade spindle encoder in order to do spindle synchronized motion like threading
[19:45:19] <zeeshan|3> i gotta rewaterjet the disc i have right now
[19:45:24] <XXCoder1> http://uscomposites.com/epoxy.html
[19:45:25] <zeeshan|3> the index pulse isn't being read right
[19:45:28] <zeeshan|3> but phase a reads right.
[19:45:33] <ssi> https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-frc1/t1.0-9/205204_655375525742_5631970_n.jpg
[19:45:38] <ssi> I did mine on my plasma table
[19:45:52] <zeeshan|3> why do you have 3 sensors
[19:45:58] <ssi> ABZ
[19:46:37] <ssi> index pulse is just a deeper slot
[19:46:42] <zeeshan|3> yes
[19:47:07] <zeeshan|3> i'd have to break my optical sensor apart
[19:47:13] <zeeshan|3> to be able to move it deep enough :P
[19:47:15] <zeeshan|3> thats the problem hehe
[19:47:48] <ssi> ugh yeah this video is horrible :P
[19:48:08] <zeeshan|3> i like how your parting tool caught the part
[19:48:14] <zeeshan|3> if only all parts would come opff like that =D
[19:48:23] <XXCoder1> I have hard time watching handheld films, but shaky ones? bad
[19:48:28] <ssi> https://www.youtube.com/watch?v=IlVsiA06GqU
[19:48:48] <ssi> that's from working on the spindle encoder; I had to add schmidt triggers to clean up the signal
[19:54:02] * archivist looks at the cheap psu on the back wall to catch the chips
[19:54:14] <ssi> archivist: that's not a psu, it's a huge magnet to collect my chips
[19:54:33] <archivist> they explode nicely
[19:54:35] <ssi> :)
[19:55:05] <archivist> I was doing a test here and the vibration broke it
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[19:55:50] <ssi> archivist: most of the stuff is in a nema box now
[19:56:01] <ssi> but I can't recall if the psu is or not
[19:56:04] <ssi> I know the drives aren't
[19:57:43] <archivist> I was testing a hobbing set up and had the stepper resonating and shaking the bench...phut a flash and smoke
[19:58:01] <ssi> that sucks
[19:58:07] <ssi> I've had poor luck with cheap power supplies
[19:58:35] <ssi> last year I built a bunch of bitcoin asic mining hardware, and I smoked a BUNCH of cheap power supplies
[19:59:13] <ssi> I ended up with psus out of HP DL380G5 servers; they're 80A @ 12V, and very reliable at 100% duty
[19:59:21] <ssi> and you can get them used very cheap
[19:59:27] <ssi> I think I paid $35 apiece for them on amazon
[20:02:51] <ssi> here it is
[20:02:51] <ssi> https://pbs.twimg.com/media/BbGW0_1CAAAWQ71.jpg:large
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[20:06:12] <zeeshan|3> okay im gonna start my brass hammer project
[20:06:21] <ssi> heheh
[20:06:23] <ssi> have fun
[20:06:29] <zeeshan|3> hopefully i can make it without crashing anything
[20:06:32] <ssi> I'm gonna make endstop trip blocks for the plasma table
[20:06:37] <ssi> and try to get it recalibrated and homing properly
[20:06:42] <ssi> and then try out my new machine torch
[20:06:48] <ssi> https://pbs.twimg.com/media/BqmvjXCIIAAs-av.jpg:large
[20:06:51] <ssi> mount came out good
[20:07:21] <zeeshan|3> you must have a lot of space!
[20:07:26] <zeeshan|3> you have a lotta machines
[20:08:13] <ssi> not enough space :P
[20:08:39] <zeeshan|3> how big is your plasma table
[20:08:57] <ssi> 48"x48"
[20:09:04] <zeeshan|3> p.s. kant twist clamps are awesome
[20:09:09] <zeeshan|3> thats huge
[20:09:11] <ssi> 54" really, but working area I consider to be 4'
[20:09:22] <ssi> it's big enough for what I've needed
[20:09:37] <ssi> I have used close to 4' in one dimension, but never two
[20:09:38] <ssi> hehe
[20:09:41] <ssi> naw that's not true
[20:09:57] <ssi> I made some 36" diameter fence medallions with the silhouette of a golden retriever for a friend of mien
[20:10:11] <ssi> and yes I love kant twists
[20:10:18] <ssi> I have six of them, two each of three sizes
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[20:34:55] <ssi> hm well this isn't good
[20:35:18] <ssi> hal wiring up my home switches, and the Z home signal in hal config is flashing occasionally without touching anything
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[20:50:04] <ssi> ug this isn't good
[20:50:14] <ssi> I guess the limit wiring is probably picking up noise
[20:50:44] <ssi> pcw_home: you around and have any thoughts on this? these limits are NC switches hardwired between ground and GPIO on p2 of a 5i25
[20:51:17] <ssi> all I've done so far is hal wire in the Z max switch to the axis limit, and now it faults intermittently, very often
[20:51:24] <ssi> within 2 seconds of enabling the machine, it limit faults
[20:51:45] <LeelooMinai> May be some noise affecting the wires
[20:51:53] <ssi> that's what I'm assuming
[20:52:32] <LeelooMinai> You could maybe shield them or twist them in pairs and see if it helps
[20:52:59] <ssi> actually most of them are twisted pair, but this one isn't
[20:53:05] <ssi> I wonder if the others have the same issue
[20:55:45] <ssi> interestingly, watching the signal in hal-scope doesn't show any rising edges
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[21:09:45] <Deejay> gn8
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[21:32:28] <MrHindsight> gadzooks I think a small tornado just went by
[21:36:13] <MrHindsight> yeah, sounded like a train while i was milling
[21:36:30] * LeelooMinai imagines MrHindsight saying that without a roof over his head
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[21:38:55] <LeelooMinai> I am so close of getting linuxcnc on 14.04
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[21:39:37] <MrHindsight> it started shaking, I thought the mill was doing something funny but it was only 0.25" 6061
[21:39:38] <LeelooMinai> I got rtai compiled, using 3.8 kernel, even linuxcnc launches, but I cannot run latency-test
[21:39:55] <LeelooMinai> http://i.imgur.com/JlWKV05.png
[21:39:58] <MrHindsight> what happens?
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[21:40:10] <LeelooMinai> shmdrv.ko not found
[21:40:22] <LeelooMinai> I googled that it's in some different place now
[21:40:38] <MrHindsight> it will compile, but you might not any decent numbers
[21:41:10] <LeelooMinai> Yes, right, got so far, I would like to at least try
[21:41:47] <LeelooMinai> Any idea what is this "machinekit" I keep encountering?
[21:41:51] <MrHindsight> tree branches in the parking lot, have to see what happened, bbl
[21:41:54] <LeelooMinai> How is it releted to liunuxcnc?
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[21:47:45] <MrHindsight> LeelooMinai: that repo i gave you the link to ubcx-7i80 is an older branch of machinekit
[21:48:23] <LeelooMinai> A, I see - that's what I used here actually (that 7i80 one)
[21:48:42] <LeelooMinai> Tried master, but failed with some SSE problems
[21:48:57] <LeelooMinai> Or was it 2.5
[21:49:02] <LeelooMinai> Anyways, did not work
[21:49:04] <MrHindsight> water was blowing in sideways under the door
[21:49:22] <MrHindsight> have to rework those weather strips
[21:49:25] <LeelooMinai> SO no tornado, just a tsunami
[21:50:02] <Jymmm> I'm trying to ghetto together a 4" duct form dust collector to a 10" flange on a filter, any suggestions? Yes, I'm ebeing cheap about it, the filter only costed $20
[21:50:32] <zultron> LeelooMinai, I suspect that you're using an abandoned branch that's neither Machinekit nor LinuxCNC.
[21:51:20] <zultron> The 'ubc' stuff has been getting stale for several months now.
[21:52:00] <LeelooMinai> Any tips on what repository I should use then?
[21:52:15] <MrHindsight> zultron: he's using the branch that they use to get hm2-ether working with preempt_rt
[21:52:21] <MrHindsight> use/used
[21:52:48] <zultron> Ah ha, you know who did that work?
[21:52:59] <LeelooMinai> I am a she actually, but yes, I use the one I was pointed to, because it was supposed to be the best bet for compiling
[21:53:21] <zultron> What link were you given?
[21:53:27] <MrHindsight> LeelooMinai: sorry, my eyes are getting old
[21:53:58] <LeelooMinai> I took RTAI from the ShabbyX git
[21:54:11] <LeelooMinai> And the linuxcnc - I switched to 7i80 head
[21:54:14] <zultron> What Machinekit or LinuxCNC link were you pointed to?
[21:54:20] <MrHindsight> LeelooMinai: he means the ubcx-7i80 branch
[21:54:45] <MrHindsight> it's in the history^^ from a couple days ago
[21:54:57] <LeelooMinai> The linuxcnc one is just, well, I think the "official" one, let me check, because I tried so many things, now it gets confusing
[21:55:20] <MrHindsight> http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=shortlog;h=refs/heads/ubc3-7i80
[21:55:25] <zultron> Ah, this sounds similar http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=shortlog;h=refs/heads/ubc3-7i80
[21:55:36] <MrHindsight> bingo!
[21:55:50] <LeelooMinai> git clone git://git.linuxcnc.org/git/linuxcnc.git linuxcnc
[21:55:57] <LeelooMinai> I used this one
[21:56:05] <zultron> I see, looks like micges's work.
[21:56:12] <MrHindsight> yes
[21:56:34] <LeelooMinai> is the machinekit one just a clone or something different?
[21:56:51] <MrHindsight> we have to separate out all the machinekit changes and rework it into linuxcnc
[21:57:04] <MrHindsight> memleak is going to work on that
[21:57:16] <zultron> Machinekit is a LinuxCNC fork. AFAIK, micges's 7i80 work is included in neither project.
[21:57:38] <MrHindsight> yet
[21:57:44] <zultron> Correct, not yet.
[21:58:05] <MrHindsight> over the next few months it should settle into place
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[22:12:04] <MrHindsight> zultron: what is a good branch of machinekit to use for reference?
[22:12:54] <MrHindsight> anyone heading to the Machinekit fest next weekend in Madison, WI?
[22:14:11] <MrHindsight> https://github.com/machinekit/machinekit
[22:14:17] <LeelooMinai> Heh, machinekit gives the same error I have seen before: /home/leeloo/machinekit/src/objects/rtai-kernel/3.8.13-rtai/emc/kinematics/5axiskins.c:32:18: error: SSE register return with SSE disabled
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[22:28:49] <MrHindsight> LeelooMinai: some threads on this: http://psha.org.ru/irc/%23emc-devel/2013-06-11.html
[22:29:04] <MrHindsight> http://sourceforge.net/p/emc/mailman/message/31300751/
[22:31:16] <zultron> MrHindsight, there's only one branch of Machinekit: https://github.com/machinekit/machinekit
[22:31:49] <zultron> Ahm, just as you said. :)
[22:32:36] <zultron> LeelooMinai, I think this is an issue with the kernel. There have been some messages on the RTAI list about it recently, if I'm not mistaken.
[22:33:00] <MrHindsight> yes, some kernel bug and there is a patch
[22:33:02] <zultron> You could try the RTAI kernel in the linuxcnc.org Debian archive.
[22:33:28] <zultron> Is it a kernel bug or an RTAI bug?
[22:33:46] <zultron> There's a reason SSE instructions aren't normally allowed in kernel space. :)
[22:33:51] <MrHindsight> LeelooMinai is trying to use a 3.8 kernel, possibly even 64b
[22:34:05] <LeelooMinai> Yes, on ubuntu 14.04
[22:34:09] <zultron> Sounds like uncharted territory.
[22:34:11] <MrHindsight> i forget the fix, I'll ask memleak later
[22:34:42] <MrHindsight> zultron: thanks, that makes it simpler
[22:34:45] <LeelooMinai> Well, I got it compiled from the 2.6 branch
[22:35:33] <LeelooMinai> But I get module 'shmdrv.ko' not found in directory /home/leeloo/linuxcnc/rtlib/rtai-kernel/3.8.13-rtai
[22:35:40] <LeelooMinai> When trying to run latency-teset
[22:35:57] <LeelooMinai> I cannot even find that .ko file on the system
[22:35:58] <zultron> Check if it was compiled in your build log.
[22:36:13] <zultron> It's part of the ubc3 sources you're compiling.
[22:36:21] <zultron> src/rtapi/shmdrv
[22:36:55] <LeelooMinai> I see the source files there for it, yes
[22:37:06] <zultron> Check if it's getting compiled in your build log.
[22:37:32] <LeelooMinai> Where is the build log? I see config.log only
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[22:38:00] <zultron> It's the output of your './configure; make' commands. If you didn't save it, do so in the future. :)
[22:38:16] <zultron> Try looking in the rtlib directory for the .ko module.
[22:38:17] <LeelooMinai> A, right, I thought that's what you meant
[22:39:23] <LeelooMinai> Compiling realtime rtapi/rtapi_shmem.c
[22:39:23] <LeelooMinai> <command-line>:0:0: warning: "_FORTIFY_SOURCE" redefined [enabled by default]
[22:39:31] <LeelooMinai> Seems like it was compiling there
[22:39:39] <LeelooMinai> There's a warning, but no error
[22:39:48] <zultron> Can you do a pastebin of `ls -l /home/leeloo/linuxcnc/rtlib /home/leeloo/linuxcnc/rtlib/rtai-kernel`?
[22:40:50] <LeelooMinai> there's no rtai-kernel there
[22:41:09] <LeelooMinai> I have kernel compiled in /usr/src
[22:41:21] <zultron> Does this look familiar? https://mail.rtai.org/pipermail/rtai/2014-June/026419.html
[22:41:26] <LeelooMinai> Ok, juse a sec
[22:42:00] <zultron> Try re-running './configure' and see if it detects any RTAI kernel sources.
[22:42:21] <LeelooMinai> http://pastebin.com/5U9iCiCq
[22:43:23] <LeelooMinai> checking if /usr/src/linux-headers-3.8.13-rtai is an RTAI kernel... no
[22:43:30] <zultron> Looks like RTAI kernel headers aren't found in your `./configure` command.
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[22:43:35] <zultron> Yep.
[22:43:41] <LeelooMinai> checking usability of RTAI utility, /usr/realtime/bin/rtai-config... yes
[22:43:44] <LeelooMinai> ...
[22:44:00] <LeelooMinai> But I have RTAI compiled fine
[22:44:04] <zultron> Ah, this was fixed in Machinekit.... 3.8.13 is different from the older kernels.
[22:44:06] <LeelooMinai> I am also on rtai kernel now
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[22:44:31] <zultron> https://github.com/machinekit/machinekit/pull/186
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[22:45:05] <zultron> You can probably apply that patch directly to your source & detection will work.
[22:45:08] <LeelooMinai> Hmm, ok, so back to machine kit - but it failed 20 minutes ago - forgot now why
[22:45:20] <zultron> You'll still see the SSE problem.
[22:45:37] <LeelooMinai> A, right
[22:45:51] <zultron> MrHindsight promised to find you a fix for that. ;)
[22:46:35] <zultron> Anyway, gotta run. Good luck!
[22:46:40] <LeelooMinai> Ok, thx
[22:52:56] <zultron> LeelooMinai, Drive-by comment on the way out the door: you're really swimming in uncharted territory here. That branch is a developer's branch that probably hasn't seen a lot of testing, and you're running a kernel that hasn't been tested. Expect a bumpy ride.
[22:53:38] <LeelooMinai> Right, i will try a bit more - will try to apply that patch
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[22:57:52] <MrHindsight> enabling fast math in linuxcnc makefile, and remove the 64b from SSE
[22:58:12] <MrHindsight> that's what worked for him
[22:59:15] <MrHindsight> LeelooMinai: ^^
[22:59:56] <LeelooMinai> Ok, in the meantime I cross-applied that patch from machinekit to detect ratai - will see now how it goes
[23:00:48] <LeelooMinai> Ok, configure found rtai now
[23:01:11] <LeelooMinai> I wonder what else will explode now
[23:03:59] <Jymmm> Anyone work with a manometer before?
[23:05:14] <renesis> is that a joke?
[23:05:29] <Jymmm> No, it's used to measure static pressure.
[23:05:30] <SpeedEvil> Jymmm: often
[23:05:36] * SpeedEvil makes his own
[23:05:49] <Jymmm> SpeedEvil: how accurate is your DIY?
[23:06:02] <LeelooMinai> Wonderful, a applied that patch, but I get SSE error in here now:)
[23:06:23] <SpeedEvil> Jymmm: ~1mm H2O as I haven't cared about it enough to get better
[23:06:49] <Jymmm> SpeedEvil: I need to see how close to 6" SP I am.
[23:07:06] <Jymmm> @900 CFM
[23:07:34] <SpeedEvil> Well - a loop of clear pipe, and a ruler will get you there
[23:07:48] <LeelooMinai> SpeedEvil: I hope you are not an op here too?
[23:07:55] <SpeedEvil> I might be.
[23:08:00] <SpeedEvil> I haven't checked recently.
[23:08:05] <Jymmm> SpeedEvil: Is it literally that simple to calibrate? Using a ruler?
[23:08:13] <LeelooMinai> That's evil
[23:08:29] <SpeedEvil> Jymmm: No - one inch of H2O is literally one inch of water pressure measured in inches of water.
[23:08:37] <SpeedEvil> Jymmm: that's how it's defined
[23:09:08] <Jymmm> SpeedEvil: I have lots of clear tubing, Just found this http://www.dwyer-inst.com/Products/ManometerIntroduction.cfm
[23:09:27] <SpeedEvil> If you have a 'U' loop, 6" of pressure will move the water columns relative to either side by 6"
[23:10:02] <Jymmm> SpeedEvil: Is that 6" down AND 6" up?
[23:10:16] <Jymmm> on the left/right side of the 'U' ?
[23:10:18] <SpeedEvil> No - 3" down and 3" up - 6" total difference
[23:10:27] <Jymmm> ah
[23:10:50] <Jymmm> SpeedEvil: ad colored water is enough?
[23:11:19] <SpeedEvil> Coloured makes it easier to see
[23:11:20] <jdh> I have a magnehelic that does +/- 5" h2o.
[23:12:01] <Jymmm> SpeedEvil: So thats al I need is a ruler, lear tubing, and some water?
[23:12:08] <tjtr33> pcw_home, maybe of interest, a web based fpga gui editor from the Logi-bone people http://www.valentfx.com/skeleton/?board=logibone
[23:12:28] <SpeedEvil> Jymmm: yes.
[23:12:35] <Jymmm> SpeedEvil: Does it need to be at any particular level in refernce to the air source?
[23:12:55] <Jymmm> (like when syphoning)
[23:13:32] <SpeedEvil> Nope. There just need to be no bubbles
[23:14:08] <Jymmm> Well, wouldn't they just float to the top anyway?
[23:15:08] <Jymmm> If it's THAT easy, I can just laser engrave a baseplate with a ruler on it
[23:15:39] <Jymmm> and some holes to cable tie the clear tubing
[23:16:42] <Jymmm> adjustable ruler, becasue murphy's law says I'lle never get the water level perfectly filled at 0" =)
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[23:20:23] <LeelooMinai> MrHindsight: " and remove the 64b from SSE" <- what did you mean by that?
[23:21:14] <Jymmm> SpeedEvil: TY
[23:21:55] <SpeedEvil> np
[23:25:53] <The_Ball> Does anybody here have a workflow for creating tool passes for OpenSCAD objects?
[23:26:34] <zee-Lathe> http://i.imgur.com/F5Dp0X3.jpg
[23:26:36] <zee-Lathe> brass hammer almsot done
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[23:31:53] <ssi> zee-Lathe: sweet!
[23:32:32] <zee-Lathe> i gotta make a handle
[23:32:36] <zee-Lathe> wondering what i should make
[23:32:42] <zee-Lathe> something all curvey and fancy? :D
[23:32:47] <ssi> zee-Lathe: yeah you definitely need to come up with a way to square your toolpost... if your toolpost is square, all your toolholders will be square, and then the geometry of the insert can go directly in your tool table
[23:33:09] <syyl> piece of rebar ;)
[23:33:12] <zee-Lathe> haha
[23:33:21] <zee-Lathe> i was thinking of using 1" aluminum round
[23:33:23] <zee-Lathe> stock
[23:33:26] <syyl> hmm
[23:33:28] <zee-Lathe> and making it look like those weird japenese dildos
[23:33:29] <syyl> i would go for wood
[23:33:41] <syyl> kinda classic
[23:33:42] <zee-Lathe> syyl its not a practical hammer
[23:33:42] <zee-Lathe> haha
[23:33:48] <zee-Lathe> its a cnc hammer
[23:34:00] <syyl> ok, then go for the dildo-style ;)
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[23:40:27] <SpeedEvil> Why can't a CNC hammer be practical?
[23:42:01] <ssi> http://www.amazon.com/Grobet-Mallet-Diameter-Length-Weight/dp/B000RELP8K/ref=sr_1_4?ie=UTF8&qid=1403394113&sr=8-4&keywords=brass+hammer
[23:42:13] <ssi> ask him how much his will have cost him all up, then tell me it's practical :D
[23:43:06] <ssi> I wonder if I should take the opportunity of the rebuild of the plasma table to upgrade it to 2.6
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[23:44:59] <SpeedEvil> Oh - I misunderstood.
[23:45:08] <SpeedEvil> I thought you meant a hammer, with CNC control.
[23:45:15] <SpeedEvil> Not...
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[23:46:51] <XXCoder1> whew nice walk in park lol
[23:46:55] <Jymmm> SpeedEvil: CNC's don't have any thumbs to smash... DUH!
[23:46:59] <XXCoder1> also stopped by and bought a router for my cnc
[23:47:32] <Jymmm> XXCoder1: 2HP ?
[23:47:42] <XXCoder1> 1 hp actually
[23:47:54] <Jymmm> trim ruter?
[23:48:06] <XXCoder1> yeah it matches scale of my small cnc
[23:48:35] <Jymmm> fuck scale... MORE POWER!!! UG UG UG
[23:48:40] <XXCoder1> lol
[23:48:57] <XXCoder1> tim powers something? been long time since I last saw that show
[23:49:15] <Jymmm> yeah, not even in reruns that I've noticed
[23:49:36] <XXCoder1> oh well
[23:49:41] <XXCoder1> its hella funny
[23:50:11] <Jymmm> DVD's on netflix
[23:50:29] <Jymmm> 25 dicsc
[23:50:35] <ssi> lol
[23:50:46] <zeeshan|3> what do you think of this dildo for the hammer
[23:50:47] <Jymmm> 8 seasons
[23:50:59] <XXCoder1> dildo hammer
[23:51:15] <XXCoder1> for men and women
[23:51:28] <XXCoder1> single gift that works for both lol
[23:51:30] <ssi> when all you have is a dildo hammer, everything looks like a nail-shaped vagina
[23:51:32] <zeeshan|3> haha
[23:51:46] <zeeshan|3> http://i.imgur.com/mKKS8uB.png
[23:52:10] <zeeshan|3> i can shorten the straight section of that handle
[23:52:11] <ssi> zeeshan|3: looks like it's shaped exactly backwards to how you'd want it to be
[23:52:31] <syyl> looks kinda strange
[23:52:38] <zeeshan|3> thats the goal!
[23:52:41] <zeeshan|3> strange cnc hammer
[23:52:54] <ssi> in that case, mission accomplished? :D
[23:52:59] <zeeshan|3> yea its got curves
[23:53:03] <zeeshan|3> and a taper
[23:53:13] <ssi> better be using path compensation!
[23:53:14] <zeeshan|3> im gonna measure the accuracy after
[23:53:15] <ssi> :)
[23:53:21] <zeeshan|3> yes
[23:53:23] <zeeshan|3> thats why im doing this
[23:53:26] <syyl> voting for the rebar again ;)
[23:53:33] <pcw_home> ssi: bare 5I25 inputs will be just like bare parallel port inputs, very susceptible to impulse noise from motor drives etc
[23:53:34] <pcw_home> remedies are debounce, electrical filter (.1 uf cap across line) , or level shift
[23:53:45] <ssi> pcw_home: is there a software debounce option?
[23:53:55] <ssi> hm caps might be doable
[23:54:29] <ssi> I would have figured that holding them low with an NC switch would be a pretty solid noise-free low
[23:55:26] <pcw_home> you may have inductive pickup in that case
[23:55:41] <ssi> there is probably 30' of wiring involved here
[23:56:13] <pcw_home> make sure the switch wires are not parallel to motor drive wiring or AC wiring
[23:56:26] <ssi> they're absolutely parallel to motor drive wiring
[23:56:31] <ssi> and I dunno if there's a good way around it
[23:56:50] <ssi> since it all runs in cable chain across two four foot axes
[23:57:31] <pcw_home> So you have created a transformer :-)
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[23:57:54] <ssi> hooray
[23:58:29] <pcw_home> Theres a debounce hal component that works well for this kind of impulse noise
[23:59:09] <ssi> hm I'll try it, thanks
[23:59:16] <ssi> hopefully it helps; I'd hate to have to rewire AGAIN
[23:59:51] <pcw_home> also using twisted pairs to the switches will help
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