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[01:33:10] <somenewguy> heekscad had a real release
[01:33:49] <somenewguy> I made some toolpaths w/ it but I have have never actually moved steel with the output, but it sure looked good
[01:34:07] <somenewguy> I have a few ngcgui routines that do 90% of everything I need, the rest I just decide I don't need lol
[01:34:27] <somenewguy> but if I ever have free time I plan to use heekCNC much more
[01:34:41] <somenewguy> shame I can't get it to build in anything other than ubuntu thanks to whoever maintains that ppa
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[01:46:53] <Connor> PetefromTn_: How goes the clean up on the new lathe ?
[01:47:18] <PetefromTn_> Well...
[01:47:32] <PetefromTn_> its a really dirty girl, thats why I love her hehe
[01:49:34] <somenewguy> make sure you don't miss any of her nooks
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[01:49:44] <PetefromTn_> https://www.youtube.com/watch?v=6Uil3f62kiI Check out this toolchanger
[01:50:17] <PetefromTn_> Oh hell yeah and she's got LOTSA nooks...:)
[01:52:41] <Connor_iPad> Interesting.
[01:52:55] <PetefromTn_> yeah man I am likin' that round boss tool carousel.
[01:54:00] <PetefromTn_> the toolholders are pretty interesting too.
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[01:55:49] <somenewguy> shame 90% of it won't fit in ur parts tank, would make life easier I'm sure
[01:55:51] <PetefromTn_> what do you make of the diamond form grooving?
[01:55:59] <PetefromTn_> yeah right
[01:56:09] <PetefromTn_> I would love to be able to dunk this bitch
[01:56:21] <PetefromTn_> but since it is freaking quite huge that is not gonna happen
[01:56:31] <PetefromTn_> so I am going to have to knuckle down and get it done.
[01:56:41] <PetefromTn_> I ran out of degreaser this afternoon tho.
[01:57:11] <PetefromTn_> I almost would just take a hose to the thing but I don't have any way to drag it outside easily
[01:57:43] <PetefromTn_> I can't wait to see this monster make some chips tho.
[01:57:54] <PetefromTn_> that will be a sweet day.
[01:58:33] <PetefromTn_> it is gonna need a bunch of work tho with the retrofit and getting it tooled up and coolant sump etc etc etc etc etc etc etc etc etc and etc.
[01:59:09] <Connor_iPad> Does it have mpgs on the cover?
[01:59:27] <PetefromTn_> unfortunatly no the parts pirates made sure of that.
[01:59:41] <Connor_iPad> But holes for them?
[01:59:51] <PetefromTn_> Honestly since it slides around like that I will probably not want them there anyways
[01:59:59] <PetefromTn_> I dunno lemme check?
[02:00:52] <PetefromTn_> looks like it might have had a removable plate or something.
[02:00:57] <PetefromTn_> thats gone too hehehe
[02:01:14] <PetefromTn_> like I said I probably would not have used it there anyways.
[02:01:30] <PetefromTn_> I plan to make a nice new pendant for it with similar setup to the Cincinattti
[02:01:34] <Connor_iPad> I dunno. That would have been nice on a lathe.
[02:01:47] <PetefromTn_> there is a very heavy duty mount for the arm for the pendant
[02:02:02] <PetefromTn_> Oh it will still have an MPG but just not on the sliding but.
[02:02:03] <Connor_iPad> Could do manual stuff without having to write g code.
[02:02:05] <PetefromTn_> bit
[02:02:23] <PetefromTn_> meh I seldom use the MPG for actual milling.
[02:02:33] <PetefromTn_> That is what the continuous feed buttons are for.
[02:03:04] <PetefromTn_> looking at some of the linuxCNC controls like JT's and others it seems there is already a bunch of built in conversational stuff
[02:03:20] <PetefromTn_> or at least it can be added easily.
[02:03:31] <PetefromTn_> I use the MPG for setup
[02:03:34] <PetefromTn_> touching off etc.
[02:03:41] <PetefromTn_> locating
[02:04:07] <PetefromTn_> I have been watching youtube videos on CNC lathes since I finished dinner.
[02:04:13] <PetefromTn_> Damn that is some pretty cool stuff.
[02:04:26] <PetefromTn_> I cannot wait to make a freakin' chess set hehe
[02:05:05] <Connor_iPad> Yup.
[02:06:14] <PetefromTn_> So far what I have seen of the basic machine everything is good to go. No damage or wear to speak of really.
[02:06:27] <PetefromTn_> I guess that one shot oiler setup did its job
[02:06:47] <Connor_iPad> Spindle bearings okay?
[02:06:48] <PetefromTn_> right now I am stripping the paint off the belt drive enclosure area.
[02:07:02] <PetefromTn_> well they feel okay hard to say without being able to turn it on
[02:07:15] <PetefromTn_> there is no slop or anything like that I can feel.
[02:07:24] <PetefromTn_> It has a D1-5 Camlock SPindle.
[02:07:44] <PetefromTn_> The spindle bore looks really clean and undamaged.
[02:07:53] <tjtr33> pcw_home, the 5i20 can use the HD-DB adapter to use 25pin daughter cards. could my 5i20 handle a 7i77 and 2pcs 7i75 ?
[02:08:02] <PetefromTn_> I definitely want to set it up with a collet closer somehow.
[02:08:14] <PetefromTn_> Been trying to find some kinda pneumatic collet closer solution
[02:08:24] <PetefromTn_> perhaps something I can fab myself or buy cheap
[02:08:51] <PetefromTn_> The spindle nose bore is similar to my 12x36 only larger.
[02:08:59] <PetefromTn_> Not sure what the taper is actually tho.
[02:09:58] <Connor_iPad> Is it going to fit In the same place as the old lathe?
[02:10:27] <PetefromTn_> no way LOL
[02:10:36] <PetefromTn_> I am gonna have to move some shite
[02:10:51] <PetefromTn_> it is physically twice the size of the old machine basically
[02:11:07] <PetefromTn_> plus the electronics cabinet in the back sticks out a good bit.
[02:11:29] <PetefromTn_> and worst part of that is the damn door opens like a house door swinging open
[02:11:40] <Connor_iPad> That's sucks
[02:11:46] <PetefromTn_> so I cannot even put it right up against the wall or I cannot open the freakin' door
[02:12:15] <PetefromTn_> I was thinking of moving all that wood and junk to where the old lathe was and put the new lathe on the opposite wall
[02:12:26] <Connor_iPad> Put it on rollers.
[02:12:42] <PetefromTn_> that way if I ever get real fancy with a bar feeder or something I can put it out the left side towards the garage door
[02:13:00] <PetefromTn_> that is actually doable but then I could not level it up nice and flat
[02:13:28] <PetefromTn_> it has a VERY nice heavy duty steel welded base with built in coolant and motor mount etc etc
[02:13:44] <tjtr33> didnt you just get a new house to get more room? and now you have to move again? ☺
[02:13:46] <PetefromTn_> It is thick as shit the feet look to be at least half inch steel plate
[02:13:54] <PetefromTn_> I wish
[02:14:04] <PetefromTn_> My house is for sale but no sold just yet
[02:14:30] <PetefromTn_> At some point I will sell it and move back to FLorida and will have to pay thru the nose to move this shtuff down there.
[02:14:59] <tjtr33> oh i thought you already made the move, nevermind
[02:15:05] <PetefromTn_> There is NO WAY I will be getting rid of these machines after all the work I put into them unless I fall into deep shit and get major business and can buy brand new machines LOL
[02:15:38] <PetefromTn_> nope not unless you wanna buy my house hehe
[02:15:52] <tjtr33> rent it out, make income
[02:16:14] <PetefromTn_> well actually if we were not relocating to another state we would actually do that.
[02:16:21] <jdh> it was gorgeous here today.
[02:16:24] <PetefromTn_> we have talked about it.
[02:16:48] <PetefromTn_> but I would be afriad some jackoff would destroy it while we are out of state.
[02:17:13] <tjtr33> include payment to a manager in the monthly rent
[02:17:29] <PetefromTn_> I did just buy a brand new AC unit for it yesterday which should get here sometime mid week.
[02:17:52] <PetefromTn_> I am gonna do most of the installation myself and then pay my friend to come over and do what I cannot and finish it up.
[02:18:12] <PetefromTn_> I must have had twenty people ask me if we would do that
[02:18:26] <PetefromTn_> but I really just want to sell outright and get the hell out of here.
[02:19:22] <Connor_iPad> What's wrong with TN?
[02:20:29] <PetefromTn_> http://imgur.com/pbOJHTr Just got this photo from a customer I did cabinet work for awhile back. They had some ugly red carpet in this room and just got hardwood installed. They cleaned it all up and snapped this photo.
[02:20:32] <jdh> the grass isn't as green there
[02:20:40] <PetefromTn_> Nothing is wrong with TN actually
[02:21:03] <PetefromTn_> It is honestly truly a beautiful place especially down by the Great Smoky Mountains National Park
[02:21:47] <PetefromTn_> I just grew up in South Florida, Most of my family is down there, most of my closest friends are down there, and I love the Ocean HEHE
[02:23:09] <PetefromTn_> I wish I had a forklift in my shop
[02:23:43] <tjtr33> floor flat? use air pads?
[02:23:59] <PetefromTn_> Well back to the shop I gotta get this place organized so I can move this new lathe to its home
[02:24:06] <PetefromTn_> not a bad idea really
[02:24:17] <PetefromTn_> I have seen some homebuilt ones that were pretty cool.
[02:24:30] <PetefromTn_> just a little bit of air pressure moved very heavy loads
[02:24:39] <PetefromTn_> OH I forgot
[02:24:49] <PetefromTn_> I spoke to SSi
[02:25:03] <PetefromTn_> I dunno if he has been on here today or yesterday or not
[02:25:38] <PetefromTn_> I hope I am not overstepping my bounds telling you this but he had a big fire in his house while I was driving to KY.
[02:25:56] <jdh> that sucks
[02:26:00] <PetefromTn_> yeah it does.
[02:26:03] <Connor_iPad> Oh hell. The laser?
[02:26:09] <PetefromTn_> That sweet CNC laser he built is GONE...
[02:26:19] <PetefromTn_> along with half his house apparently
[02:26:30] <zeeshan> are you joking
[02:26:32] <zeeshan> is he okay?
[02:26:37] <Connor_iPad> Oh frack.
[02:26:39] <PetefromTn_> some of his machines that were down in the basement were flooded
[02:26:44] <PetefromTn_> no he is fine
[02:26:48] <zeeshan> phew
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[02:26:53] <zeeshan> thats all that matters at the end
[02:27:05] <PetefromTn_> apparently the laser was running some of those parts
[02:27:15] <PetefromTn_> and he went to the other room to do some program changes or something
[02:27:22] <PetefromTn_> he said he heard the machine stop running.
[02:27:32] <PetefromTn_> when he went to check on it it started on fire
[02:27:42] <PetefromTn_> before he could get it out it got out of control
[02:27:53] <PetefromTn_> and he just grabbed his pets and left
[02:27:54] <zeeshan> we were just talking about getting a fire extinguisher
[02:27:59] <zeeshan> from walmart the otehr night
[02:28:05] <PetefromTn_> yeah I know
[02:28:09] <PetefromTn_> I felt so bad for him
[02:28:12] <zeeshan> me too
[02:28:14] <PetefromTn_> He has become a good friend
[02:28:15] <zeeshan> he worked so hard
[02:28:22] <zeeshan> on that stuff
[02:28:38] <Connor_iPad> I hope his insurance covers it.
[02:28:39] <LeelooMinai> Damn, that's brutal...
[02:28:45] <PetefromTn_> last I spoke to him he was trying to get the machines that were not destroyed moved to the hangar.
[02:29:02] <LeelooMinai> I was just talking to mom today about buying a fire extinguisher...
[02:29:06] <PetefromTn_> He said his friend has a small apartment at or near the hangar
[02:29:22] <PetefromTn_> that he stays in when he is down there working on his plane or the VMC etc.
[02:29:45] <PetefromTn_> He is going to stay there while they sort out what to do next
[02:29:59] <PetefromTn_> He seemed REMARKABLY undisturbed by it.
[02:30:00] <Connor_iPad> Wonder what he's going to do about that job he had with the laser.
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[02:30:21] <PetefromTn_> no idea
[02:30:30] <zeeshan> i'm really paranoid about burning the garage down
[02:30:43] <Connor_iPad> Probably not hit him yet. I've been through a few house fires. It's not fun.
[02:31:10] <zeeshan> the things that scare my the most
[02:31:12] <zeeshan> are the propane tanks
[02:31:17] <zeeshan> just chilling there
[02:31:21] <zeeshan> next to the oxygen tank
[02:31:24] <PetefromTn_> He is a smart guy tho, he will land on his feet I am confident
[02:31:44] <tjtr33> i used japanese flame sensors, sense ~650nM energy, has to flicker, owned by Azbil, like these used in mines & power plants
http://www.azbil.com/products/bi/cp/detail/d12.html
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[02:32:00] <PetefromTn_> I offered to run down there and help him but he said he had all the help he needed.
[02:32:06] <tjtr33> the sensor itself is only 15bux or so, cheap insurancem, in series in estop chain
[02:33:03] <PetefromTn_> Whenever I am NOT in the shop I disconnect all power to everything.
[02:33:16] <LeelooMinai> How come only half the house burned down? Did firemen took over at some point?
[02:33:22] <tjtr33> i built pairs for edm machines, pointed fromm corners of tank towards center of work area
[02:33:28] <PetefromTn_> if I am not out there running stuff the entire shop is dead electrically basically.
[02:33:34] <PetefromTn_> Yeah apparently
[02:33:53] <PetefromTn_> he said between the firehoses and his plumbing melting that probably did the most damage.
[02:33:55] * LeelooMinai notes on the paper "Fire extinguisher it is"
[02:34:36] <PetefromTn_> he said fortunately his HNC lathe has some plywood boards on top of the enclosure that shed off the majority of the water so it was saved apparently
[02:35:13] <PetefromTn_> Speaking of I need to text him to see how he is doing...
[02:35:38] <Connor_iPad> Yea. Give him my best.
[02:35:47] <PetefromTn_> Willdo
[02:36:44] <PetefromTn_> somehow he is apparenlty online here probably with his phone I guess or something.
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[02:52:56] <_DannyK_> SSI you around today?
[02:59:46] <tjtr33> the flame sensor tubes
http://www.hamamatsu.com/jp/en/3007.html
[03:00:53] <_DannyK_> flame detectors of reliable nature? Sounds expensive.
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[03:03:58] <tjtr33> used in mines to make sure thers no flame, used in boilers to make sure theres is one, used by honeywell & others, raw sensor <50$
[03:05:23] <_DannyK_> I would only have experience with boilers.... Never seen one. a flame detector is nothing like this little guy though.
[03:05:28] <_DannyK_> looks cool
[03:07:52] <tjtr33> http://www.hamamatsu.com/resources/pdf/etd/UVtron_TPT1021E04.pdf it needs an exciter circuit too but still, at <200$ with drivber and relay dry contact, cheaper than yo cnc machine ( esp laser, plasma, torch, edm )
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[03:09:46] <_DannyK_> Good to know they exist,,,,
[03:15:07] <cathode> is it just me or is this incredibly expensive?
http://www.ebay.com/itm/POWERTEC-B18CSA1100100000-3HP-640V-DC-1750RPM-182TC-BRUSHLESS-DC-MOTOR-B288621-/291258047302?pt=LH_DefaultDomain_0&hash=item43d0551b46
[03:15:23] <cathode> also... 640V DC? is that common?
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[03:18:30] <_DannyK_> Seems a bit pricey.. Pretty powerful though..
[03:18:46] <_DannyK_> 640dc kinda weird..
[03:19:49] <cathode> ah, here's a 320V BLDC motor that is a lot cheaper, same hp rating.
http://www.ebay.com/itm/BALDOR-Industrial-Motor-3-HP-4000-RPM-35P927T345-/111029361547?pt=LH_DefaultDomain_0&hash=item19d9dd9b8b
[03:19:55] <cathode> that seems more reasonable
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[03:21:40] <tjtr33> the Baldor is 4000rpm, seems likely, the 1st Powertec is 1750, sounds like stock ac motor speed, i wonder if theres some err in the post
[03:22:04] <_DannyK_> I've never dealt with a DC baldor motor, all their AC servo/ line motors are fantastic .Of course IMO.
[03:23:14] <tjtr33> we only used baldor, we needed good low speed control, and brushed dc is good for that, the brushless i never used ( Ft Atkinson Arkansa? big & heavy!)
[03:23:48] <cathode> are there major differences in torque between brushed and brushless dc?
[03:24:05] <cathode> i'm not really familiar with DC drives
[03:24:13] <tjtr33> fort smith
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[03:25:53] <_DannyK_> Need some sleep, night.
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[03:28:53] <tjtr33> my fire sensors, with free tester ( barbeque lighter :)
http://ibin.co/1f8As6rh3yC6
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[03:48:22] <Connor_iPad> Ugg. Ordered some wire duct from ebay. China. 6 days later they send me email saying item was returned from post because it was to long. Ask me to buy something else. I tell them to ship it some other method at there expense as listing stated free shipping.
[03:48:47] <cathode> good luck
[03:49:49] <Connor_iPad> Why are they selling it if they can not ship it...
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[03:58:53] <somenewguy> brushed torque matches the load, ie the drive increases voltage to drive up current to keep speed constant
[03:59:02] <somenewguy> but you need the load to exist and the system to respond to it
[03:59:28] <somenewguy> bldc is "always creating the same torque" regardless of the forces acting on it, unless the system has feedback and scales back max power
[04:00:02] <somenewguy> basically BLDC is running at max torque at all times, but needs zero feedback so speed is always very well regulated, or compeltly shot, no inbetween
[04:00:43] <somenewguy> brushed needs time to react, which can be basically instantaneous, but it varies, however the motor is not always being pushedfull tilt, ie it only draws the power it needs rather than allways drawing rated current
[04:01:22] <zeeshan> fak
[04:01:25] <zeeshan> i feel so bad for ssi
[04:01:34] <zeeshan> im kinda in shock.
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[04:30:44] <toastyde1th> zeeshan, what happened to ssi
[04:39:30] <XXCoder> Dunno it must have scrolled up or it was pms
[04:39:36] <XXCoder> PMs that is
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[04:49:24] <CaptHindsight> toastyde1th: from the scrollback it sounds like his laser caught fire and then it got out of control enough for the fire brigade to visit
[04:49:35] <toastyde1th> oooh
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[04:50:22] <XXCoder> ouch
[04:50:32] <XXCoder> hope nothing expensive was damaged
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[05:24:21] <Valen> oops
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[07:08:15] <cathode> i missed it
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[07:30:22] * cathode opens a can of worms
[07:31:12] <cathode> CNC Lathe vs CNC Mill vs CNC router table ... which one is going to provide more overall utility for hobby use and production of prototype parts (for robotics, or other machines, for example)
[07:32:00] <cathode> i'm leaning towards cnc mill
[07:35:59] <Valen> mill + 4th axis will do pretty much anything
[07:36:18] <Valen> if you have something to make the gcode
[07:36:26] <cathode> ok
[07:37:45] <cathode> i have a fair amount of experience with designing parts in solidworks but i've not dealt with actually translating a part into cnc instructions (gcode?)
[07:37:54] <Valen> yes
[07:39:13] <cathode> anyway i'm looking at building something mostly from scratch, not buying
[07:39:28] <Valen> 's a good plan unless you are spending money
[07:39:57] <cathode> i suppose a cnc router table is probably the most simple type of thing to make given that it's only 2-axis plus a few inches of z travel
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[07:40:24] <Deejay__> moin
[07:41:59] <guerillaengineer> If that means morning, which it most likely does, then mornin'.
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[10:21:09] <yeahiii> hey there, I am thinking about getting a mini itx mainboard with onboard parallel port and graphics. (
http://ark.intel.com/products/78867/Intel-Celeron-Processor-J1900-2M-Cache-up-to-2_42-GHz) Does anyone know if LinuxCNC has issues with such integrated GPUs?
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[10:40:02] <mk0> why not cubie or BeagleBone Black?
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[10:59:22] <chris_gough> hi, is this the place for stupid newbie questions or should I post it on the forum?
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[11:01:02] <Loetmichel> chris_gough: shoot away ;-9
[11:01:14] <Loetmichel> if we can hallp we will
[11:01:17] <Loetmichel> help
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[11:02:00] <chris_gough> well, I have a 4 axis foam cutter that I'm trying to simulate in a virtualbox image of the live CD...
[11:02:21] <chris_gough> my ini file currently looks like this
https://gist.github.com/monkeypants/216569e697b832d8027f
[11:02:58] <chris_gough> I can't figure out how to change the distance between XY and UV
[11:03:16] <chris_gough> so, when I make tapered shapes, they look wrong
[11:03:45] <chris_gough> (in reality, thee sides are 1.5 meters apart, not 20cm)
[11:03:51] <chris_gough> how do I do that?
[11:04:09] <Loetmichel> hmmm
[11:04:30] <Loetmichel> no idea what you mean, i only use it for a 3 axis stepper driven CNC mill, tho
[11:05:32] <chris_gough> I's like one of them too, but right now all I have/need is the foam cutter. Total newbie to CNC.
[11:05:47] jthornton_ is now known as jthornton
[11:06:55] <chris_gough> the machine looks a bit like this one
http://www.foamlinx.com/fc2913.html
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[11:34:23] <yeahiii> haven't thought about the beaglebone, yet. does anyone know how stable it runs?
[11:38:44] <_methods> i think there are a few people using it
[11:38:51] <_methods> i have no idea how stable though
[11:39:38] <_methods> http://blog.machinekit.io/p/machinekit_16.html
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[11:58:18] <chris_gough> sorry for the delay. Here's a screen shot of the foam-cutter sim in axis, showing 38.1mm distance between XY and UV sides.
http://imgur.com/LpUonjt.png
[11:58:57] <chris_gough> I don't know how to tell linuxcnc that those sides are 1.5m apart
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[12:03:08] <jthornton> there is a guy that cuts foam wings and I think he posted on the forum
[12:03:24] <jthornton> all your worried about is the back plot?
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[12:09:37] <chris_gough> with a strait taper cut it's no problem, but with a tapered cut the whole thing is so distorted it's useless
[12:10:18] <chris_gough> useless visualisation - baring in mind that I'm trying to learn g-code etc with the sim
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[12:18:23] <_methods> chris_gough: have you read through this?
[12:18:26] <_methods> http://www.linuxcnc.org/index.php/english/forum/31-cad-cam/26708-xyuv-toolpath-generator
[12:19:18] <_methods> i think you need to have installed the dev verision of linuxcnc
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[12:33:55] <chris_gough> Thanks _methods. I have a reasonably recent (few weeks old) liveCD, and it came with the axis_foam example referenced in that post. But I can't figure out how to change the geometry of the machine to match my physical one. I can exit the axis dimensions, but not the distance between XY:UV (along the axis normal to Z and W).
[12:35:28] <chris_gough> For g-code, I'm generating it with "profili pro" at the moment but imagine I'll be tweaking it a lot manually once i get the hang of things
[12:36:24] <archivist_herron> does this setup have its own kins?
[12:41:28] <chris_gough> I don't know. How do I find out (was working from the supplied example)
[12:42:43] <mk0> chris_gough, when i cut tapers, i plot every axis.
[12:43:12] <mk0> and every axis has its own gcode.
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[12:46:27] <chris_gough> mk8: My gcode (from profili) has lots of lines like "G1X-0.23423Y0.3453U-0.5435V0.2342". Is that what you mean "every axis has it's own gcode?
[12:46:42] <archivist_herron> in the hal files there will be line loading some kins or other. may need the kins reworking for your dimensions
[12:47:23] <chris_gough> Or, is the gcode else ware telling the machine about the dimensions of the machine (that seems weird).
[12:47:30] <archivist_herron> yes that moves 4 axes at the same time
[12:48:18] <chris_gough> Thanks, I'll start digging through the kinematics
[12:48:23] <mk0> yes, exactly what i mean. two pairs.
[12:48:46] <mk0> i didn't find kinetics for XYUV
[12:49:33] <mk0> that means you'll have to recalculate plots for each pair of axis
[12:50:03] <mk0> yes, that is abusive, but not very hard
[12:50:36] <chris_gough> I don't understand "recalculate plots", do you mean when I generate gcode?
[12:50:39] <mk0> and well gscite has vertical selection for pasting second pair
[12:52:40] <mk0> nope. replot path in CAD for each pair knowing the distance between nodes and recalculate where to start from to get ideal taper.
[12:53:30] <mk0> or write kinematics. that could be perfect because i do not know how to do it
[12:53:59] <chris_gough> the halfile does a "loadrt trivkins", I can't find anything else obviously relevant.
[12:54:25] <archivist_herron> trivkins is the standard, nothing special
[12:56:16] <chris_gough> I think profili is doing that for me. I just checked and it wants to know the distance between sides of the machine and where the foam block is positioned. So my only problem is with the visualisation. well, my current problem :)
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[12:59:12] <mk0> ah)
[12:59:33] <mk0> profili is a separate software?
[13:01:38] <chris_gough> yes, bespoke closed source for designing wings. has .gcode and .cut export features. The machine came with XP/GMFC and I figured I'd convert it to linuxcnc before going open source CAD... one learning curve at a time
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[13:08:07] <mk0> ahh
[13:08:25] <chris_gough> archivist_heron: I read the kinematics page and don't understand why non-trivial kinematics model of my machine would be an advantage. It has 4 linear joints, two orthogonal pairs.
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[13:08:47] <mk0> anyway i could not adjust linuxcnc for what you (and i) want
[13:09:57] <mk0> there is config for XYUV and foam. but it does not consider distance between nodes.
[13:11:33] <chris_gough> mk0: My interpretation of what I was looking at, is that it would work but the visualisation is weird. There is a distance, 38.1mm in my sim, and I don't know where it's coming from.
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[14:08:20] <tjtr33> linuxcnc and XYUV hot wire foam cutting:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Videos#Wire_cutting http://www.cnc-hotwire.de/ http://code.google.com/p/emc2hotwinch/
[14:09:06] <tjtr33> wow all magic33de's videos are gone from youtube & wayback. thats Ichguchlive, he did quie a bit withXYUV wire foam cutting
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[14:11:15] * SpeedEvil sighs.
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[14:14:51] <skunkworks> that sucks
[14:16:12] <tjtr33> see sammel lothar's work also on xyuv hotwire
http://comments.gmane.org/gmane.linux.distributions.emc.devel/5380
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[14:20:22] <tjtr33> skunkworks, a wayback machine for linuxcnc videos
http://www.yourepeat.com/g/LinuxCNC
[14:21:39] <skunkworks> neat
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[14:27:49] <cpresser> has anyone tried to get this thing working with linuxcnc?
http://www.ebay.de/itm/Wireless-Mach3-MPG-Pendant-Handwheel-for-CNC-Mac-Mach-3-4-axis-Wholesale-Price-/180909534937?pt=LH_DefaultDomain_77&hash=item2a1f0c6ed9
[14:27:58] <cpresser> I wonder if its a HID device
[14:30:04] <CaptHindsight> just about everything lower cost consumer grade and wireless tends to not be reliable
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[14:32:49] <cpresser> i dont need wireless. most likely i would build my own electonics for it
[14:32:54] <CaptHindsight> http://www.automationtechnologiesinc.com/products-page/featured-cnc-products/wireless-mpg-handwheel-for-mach3-controller started carrying it
[14:33:19] <CaptHindsight> I might be able to try one next time I stop in there
[14:34:33] <cpresser> it does have a lot of buttons and a nice case. looks like a perfect start for a rebuild
[14:34:57] <CaptHindsight> http://www.automationtechnologiesinc.com/wp-content/plugins/download-monitor/download.php?id=320 read the docs!
[14:35:25] <CaptHindsight> it's nearly readable
[14:35:38] <skunkworks> CaptHindsight, does that one work with linuxcnc? (the driver that people have worked one?)
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[14:36:10] <CaptHindsight> skunkworks: dunno, just reading the docs myself
[14:36:25] <CaptHindsight> it has a .dll
[14:36:54] <CaptHindsight> so probably not HID, just DLL hell
[14:37:52] <skunkworks> well - I think the work that has been done is unrelated to the mafgr...
[14:38:21] <cpresser> i do read 'HID' in one of the docs.. however there is also a document called 'problems'. seems like the firmware is not that good
[14:38:39] <CaptHindsight> seems like a good project using a BBB, RPi or some duino
[14:40:29] <CaptHindsight> but cpresser's ebay link has it for ~1/4 the price at Automation Tech
[14:41:08] <skunkworks> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Using_A_XHC-HB04_Wireless_MPG_Pendant
[14:42:21] <CaptHindsight> http://www.linuxcnc.org/index.php/french/forum/24-hal-components/26679-xhc-hb04-wireless-mpg-pendant-hal-module
[14:42:48] <skunkworks> it would be nice to have a pendant.
[14:43:17] <skunkworks> 40 meters.. cool
[14:43:18] <CaptHindsight> I wonder which micro is inside that pendant?
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[14:47:11] <TekniQue> I figured I'd ask here, not strictly linuxcnc related. I'm looking for something like a sliding spline coupling to attach a nema13 stepper motor to a flow control valve
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[14:48:02] <TekniQue> there's a screw that extends out of the valve and when the valve is opened up the screw extends further
[14:48:26] <TekniQue> so I need some way to take out the slack
[14:48:50] <TekniQue> and it would be easiest if there's something I can buy to do this
[14:49:12] <_methods> shaft diameter?
[14:49:27] <TekniQue> quarter of an inch or so
[14:49:39] <TekniQue> 8mm maybe
[14:50:00] <_methods> what's on the existing shaft?
[14:50:02] <_methods> a flat?
[14:50:19] <TekniQue> existing shaft has a rectangular end
[14:50:26] <TekniQue> and a handle that presses onto the rectangle
[14:50:40] <TekniQue> handle is held in place by a 1/4-20 nut
[14:50:41] <_methods> you got pics might be easier to visualize
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[14:52:07] <_methods> you're tryin to turn a maually actuated valve into like a solenoid actuated
[14:52:55] <TekniQue> intu a stepper actuated
[14:53:15] <TekniQue> it has about 720 degrees of range
[14:53:38] <TekniQue> and if I could turn it with a stepper to adjust the water flow that'd be ideal
[14:53:52] <_methods> yeah i wonder if you could add like a T to the top of the screw then attach a slotted "pipe" that goes over the T
[14:54:27] <_methods> have the slot long enough to account for the screws travel
[14:54:32] <TekniQue> yeah that would be the way to do it
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[15:00:48] <TekniQue> the item in question is a load valve for an engine dynamometer pictured
http://www.land-and-sea.com/image/dyno/snow/snowmobile_dynamometer_kit_600.jpg
[15:01:05] <TekniQue> the manufacturer offers a stepper controlled version but it's $1100
[15:02:19] <TekniQue> when a stepper and driver can be had for less than a 100 bucks and I already have a manual valve and I'm doing my own control electronics anyway, I figure I'll make my own
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[15:04:22] <_methods> dynomite lol
[15:04:25] <dgarr> skunkworks: there are sim configs for the xhc-hb04 pendant in 2.6 (configs/sim/axis/xhc-hbo4)
http://www.youtube.com/watch?v=HiCpUB6TpdA
[15:04:58] <_methods> yeah if you can mill a flat on the screw then you can just mill a slot in a coupler on the stepper shaft
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[15:08:47] <PetefromTn_> https://www.youtube.com/watch?v=FpaywPSqsbo WOW that is cool...
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[15:30:00] <TekniQue> PetefromTn_: yes
[15:30:07] <TekniQue> very nice
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[15:47:32] <TekniQue> apparently, FJO has been acquired by Holley
[15:48:23] <PetefromTn_> Looks relativley complex tho not sure how I would even use it if I could LOL
[15:48:24] <TekniQue> FJO as in manufacturer of wideband lambda controllers and injector driver boxes
[15:48:29] <TekniQue> oops
[15:48:31] <TekniQue> wrong channel
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[16:40:50] <Gabriel_> Hi. I want to use LinuxCNC to control servo motors in torque-mode. I would like to know if the necessary HAL connections are different from those in velocity-mode, or just the parameter values. Thank you.
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[16:41:22] <cradek> just tuning differences
[16:42:00] <Gabriel_> ok cradek, thank you.
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[16:52:38] <PCW> Torque mode servos will typically need a higher servo thread rate than velocity mode servos
[16:52:40] <PCW> (for equivalent dynamic stiffness)
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[16:54:42] <TekniQue> anyone here have good knowledge of load cells
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[16:54:57] <TekniQue> I want to make a digital torque wrench
[16:55:28] <TekniQue> so an arm with a load cell in it to measure the torque
[16:55:43] <TekniQue> and I'm wondering which would be more suitable, a double bending beam or a single bending beam
[16:56:16] <TekniQue> assuming the cell goes somewhere along the length of the wrench's lever arm
[16:57:13] <TekniQue> objective is to capture the torque data on a computer using an ADC
[16:58:22] <_methods> might be able to use a digital torque wrench with spi
[16:58:24] <archivist> load cells have 4 strain gauges in a bridge arrangement
[16:59:16] <TekniQue> I know, and I have an instrumentation amplifier to connect to that
[16:59:21] <archivist> so you measure the balance of the bridge, make sure the adc is the right type for that
[16:59:42] <TekniQue> I'm purely wondering about the physical characteristics
[17:00:18] <TekniQue> I want to make the arm in two pieces, insert a load cell in between
[17:00:25] <archivist> test and calibrate, adjust the gain to make the numbers sensible
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[17:01:07] <TekniQue> I'm wondering if a dual beam cell is suitable or if I'm better off with a single beam cell
[17:01:19] <archivist> not sure what you want to do will be linear
[17:01:22] <TekniQue> in the application where the cell forms part of the lever arm
[17:01:43] <TekniQue> well, the bending load on the lever arm is the same for a given torque
[17:01:56] <TekniQue> no matter if I pull it in the middle or at the end
[17:02:10] <TekniQue> the strain is the same
[17:02:56] <TekniQue> I could epoxy some strain gages to the existing arm
[17:03:00] <archivist> some measure a force in a designed direction rather than bending like you want
[17:03:05] <TekniQue> but I'd rather use a manufactured cell
[17:03:46] <TekniQue> it'll be more linear than me playing with strain gages
[17:03:52] <archivist> most torque is measured by the twist of a bar, probably can buy them too
[17:04:14] <zeeshan-laptop> depends on how accurate you want to get
[17:04:19] <TekniQue> yeah, but my arm doesn't attach to a shaft
[17:04:30] <TekniQue> it attaches onto the perimeter of the shaft
[17:04:30] <zeeshan-laptop> youll have bending forces, shear forces
[17:04:32] <zeeshan-laptop> and torsion
[17:04:38] <TekniQue> so I can't measure the torsion
[17:04:50] <archivist> you put your bar on the end of the shaft
[17:05:21] <zeeshan-laptop> is the beam a round beam
[17:05:55] <zeeshan-laptop> teknique i looked into making my own torque wrench before
[17:05:55] <archivist> day job many years ago was making the electronics for a torquemeter company, they used gears on a shaft
[17:05:59] <TekniQue> archivist: no can do, packaging doesn't allow that, the shaft is hollow
[17:06:15] <TekniQue> and has other stuff passing through it
[17:06:23] <zeeshan-laptop> TekniQue: can you explain what your torque wrench looks like
[17:06:23] <TekniQue> think of it like a big open ended wrench
[17:06:25] <archivist> hollow is no problem
[17:06:31] <TekniQue> that's what I need to do
[17:06:49] <zeeshan-laptop> youre trying to measure how much your hollow bar bends?
[17:06:54] <TekniQue> no
[17:07:05] <TekniQue> solid bar
[17:07:11] <archivist> with a rotating sensor it was non contact on a stationary tube
[17:07:30] <zeeshan-laptop> x-------------------------|
[17:07:38] <zeeshan-laptop> x is attachment point ---- is solid round bar
[17:07:44] <zeeshan-laptop> | is where force is applied?
[17:07:50] <TekniQue> yes pretty much
[17:08:01] <zeeshan-laptop> thats going to generate a complex stress state
[17:08:03] <TekniQue> but the point where force is applied is not accurately located every time
[17:08:14] <zeeshan-laptop> thats no problem
[17:08:22] <TekniQue> except in that it is a pure torque load
[17:08:25] <zeeshan-laptop> because as long as you have a constant length from the x point
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[17:08:27] <zeeshan-laptop> you will be okay
[17:08:44] <zeeshan-laptop> yea but in reality
[17:08:44] <archivist> as long as it is far from the measurement site
[17:08:49] <zeeshan-laptop> its not a pure torque load though
[17:09:07] <zeeshan-laptop> think of it like this
[17:09:15] <zeeshan-laptop> take a piece of paper, roll it up
[17:09:18] <zeeshan-laptop> evenly
[17:09:27] <zeeshan-laptop> now try to twist it (torque it)
[17:09:28] <zeeshan-laptop> what happens?
[17:09:31] <zeeshan-laptop> the ends stick out
[17:09:34] <TekniQue> this is the bar I'm looking to replace
https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/10620638_10152460946096662_621416257365184316_n.jpg?oh=211975c24a5e6e8c1ca2c860ce688d22&oe=54F2735F&__gda__=1425238374_a7cc5d8c4239294cbb18b4b584ffc6f4
[17:09:35] <zeeshan-laptop> you always end up getting warping stresses
[17:09:47] <TekniQue> the blue item
[17:09:54] <TekniQue> attaches to the brake on one end
[17:10:11] <zeeshan-laptop> whats that shaft on the right end
[17:10:12] <TekniQue> other end rests on a fixed point
[17:10:17] <TekniQue> but is not attached to it
[17:10:25] <TekniQue> shaft on the right is secondary clutch shaft
[17:10:29] <TekniQue> which is stationary
[17:10:53] <TekniQue> just used in this application for the torque arm to rest against
[17:11:23] <archivist> some put the load cell at that anti rotation point or one on the bar
[17:11:24] <TekniQue> I'm thinking I'll water cut a new arm
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[17:11:34] <TekniQue> in two pieces
[17:11:36] <zeeshan-laptop> i totally agree
[17:11:56] <TekniQue> and bolt a load cell in the middle
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[17:11:58] <zeeshan-laptop> i see the problem though
[17:12:02] <zeeshan-laptop> the arm moves back and force
[17:12:14] <zeeshan-laptop> so it varies the torque generated
[17:12:20] <TekniQue> yeah the application point of the torque is not constant
[17:12:32] <TekniQue> so I can't just insert an S beam cell at that point
[17:12:36] <TekniQue> it'd be a nightmare to calibrate
[17:12:42] <zeeshan-laptop> yea
[17:12:47] <zeeshan-laptop> what ive seen done before is
[17:12:52] <TekniQue> I need to measure the bending of the arm
[17:12:54] <zeeshan-laptop> the base of that attachment point
[17:12:58] <zeeshan-laptop> has one or two mounting members
[17:13:01] <zeeshan-laptop> where the load cell goes
[17:13:10] <zeeshan-laptop> its a much less complex stress state
[17:13:17] <TekniQue> and the bending does not vary by where the application point
[17:13:24] <TekniQue> is
[17:13:30] <archivist> remember the torque is only resisted there, it is developed where the rotation is input
[17:13:36] <TekniQue> yes
[17:14:45] <TekniQue> and moving that point around will not affect the relationship between torque and bending load near the brake
[17:15:11] <TekniQue> because it is the brake that generates the torque
[17:15:18] <archivist> I would have a two part arm but BOTH would be around the input shaft one pressing on the load cell at a radius on the other arm which has the slot
[17:15:28] <TekniQue> moving the resisting point around will affect the force at the point
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[17:16:14] <archivist> all depends on accuracy you want too
[17:16:30] <TekniQue> I will calibrate the arm with dead weights
[17:17:18] <TekniQue> all I need from the load cell is for it to be stable with temperature and to have a linear response
[17:18:52] <zeeshan-laptop> good ones have a wheatstone bridge
[17:18:57] <TekniQue> yes
[17:19:01] <zeeshan-laptop> with a variable resistor that changes with temp
[17:19:07] <zeeshan-laptop> and negates temp effects
[17:19:45] <zeeshan-laptop> ive been wanting for a long time
[17:19:48] <zeeshan-laptop> to make my own scales for the car
[17:19:48] <zeeshan-laptop> lol
[17:19:50] <TekniQue> mhmm
[17:19:59] <TekniQue> I have a decent temperature compensated cell on my big dyno
[17:20:25] <TekniQue> but this arm I'm looking to replace has a very bad temperature response
[17:21:11] <TekniQue> my big dyno capable of measuring 1200lb-ft torque varies by less than 2lb-ft in its unloaded state
[17:21:17] <archivist> all that colour shows shiny matters not quality
[17:21:19] <_methods> http://abc7.com/news/lax-flight-delayed-after-wifi-hotspot-name-prompts-concerns/367110/
[17:21:20] <TekniQue> the zero point hardly shifts at all
[17:21:42] <TekniQue> this arm however, rated to 200lb-ft
[17:21:50] <TekniQue> but I'm seeing almost 5 lb-ft of shift
[17:22:02] <zeeshan-laptop> _methods ROFL
[17:22:04] <TekniQue> which is a very big fraction of full scale
[17:22:11] <_methods> does your other one use an aluminum arm?
[17:22:18] <zeeshan-laptop> in university, my bros floor on residence
[17:22:24] <TekniQue> _methods: yeah
[17:22:29] <zeeshan-laptop> had the wifi network name as "SAFE HOUSE"
[17:22:31] <zeeshan-laptop> haha
[17:22:32] <_methods> what grade?
[17:22:42] <TekniQue> nfi, I think it's 7075
[17:22:58] <_methods> i wonder what grade this new one is?
[17:23:02] <_methods> maybe 5052
[17:23:13] <TekniQue> oh
[17:23:15] <TekniQue> my other one
[17:23:18] <_methods> yeah
[17:23:22] <TekniQue> no my other one has a stainless steel S beam cell
[17:23:36] <TekniQue> the small one has an aluminium arm
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[17:25:26] <archivist> aluminium creeps, get some real metal
[17:25:36] <TekniQue> yeah that's the plan
[17:26:15] <TekniQue> that's why I'm looking to replace this arm
[17:26:19] <TekniQue> with something more proper
[17:26:36] <TekniQue> and something that handles more torque
[17:26:46] <TekniQue> this aluminium one is only rated to 200 lb-ft
[17:26:58] <TekniQue> which limits me to about 300 horsepower at 8000RPM
[17:27:14] <TekniQue> the brake is capable of much more than that
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[17:30:56] <archivist> I have wanted to make something to measure the torque in a clock while running, to analyse which gear mesh is not so good
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[17:37:55] <SpeedEvil> archivist: at what frequency range?
[17:38:12] <SpeedEvil> couple of optical encoders, across a coupling?
[17:40:39] <archivist> clocks are slow, , one needs to measure the output torque and the normal working speed 60 secs per rev for an escape wheel, and provide a measured torque at the input(almost stationary)
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[18:21:28] <ds3> cd
[18:21:30] <ds3> bah
[18:24:20] <andypugh> archivist: I might have a fun job, repairing an old pulse clock where the master has been demolished.
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[19:01:41] <Jymmm> ds3: the OTHER window =)
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[19:08:50] <TekniQue> I just quit thinking about it and ordered a new torque arm that has a wheatstone bridge
[19:08:58] <TekniQue> and is rated to 300lb-ft
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[19:13:45] <TekniQue> and here's hoping it's more stable than the half bridge arm I have now!
[19:15:06] <_methods> hmm learn something new every day
[19:15:15] <_methods> spherical level compensating bolts
[19:15:20] <_methods> never used one before
[19:16:57] <_methods> anyone in here selling a series 4 pemserter by any chance?
[19:17:39] <CaptHindsight> are you hard-pressed to find one? /badpun
[19:18:11] <TekniQue> pemserter? Sounds dirty
[19:18:22] <_methods> hahah
[19:18:40] <_methods> nah just lookin right now
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[19:43:27] <tjtr33> andypugh, when you said the master is gone i was reminded of this
http://en.wikipedia.org/wiki/Antikythera_mechanism
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[19:43:48] <andypugh> It would be fun to make one of these
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[19:43:57] <andypugh> (those. Maybe them)
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[19:44:47] <tjtr33> deese dem dose (Chicago here )
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[20:53:17] <_methods> anyone in here going to fabtech?
[20:53:54] <_methods> http://www.fabtechexpo.com/
[20:58:32] <CaptHindsight> I've gone the past few time when it was in Chicago
[21:00:28] <_methods> yeah its in atlanta this year so i'm probably going to hit it
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[21:01:00] <_methods> got a couple free tickets from one of the machinery sales guys
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[21:27:30] <CaptHindsight> _methods: looks like they finally knocked down the old run down homes that used be right across the street from the Georgia World Congress Center
[21:29:22] <_methods> ah i havent been down there in like 10 years
[21:29:36] <_methods> can't wait to hit fry's on the way there lol
[21:29:48] <CaptHindsight> been ~6 for me
[21:30:40] <CaptHindsight> at least it's easy to get to
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[21:31:28] <_methods> i haven't been to a trade show in forever
[21:31:32] <_methods> bout time i got back to one
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[22:44:13] <Deejay> gn8
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[23:37:54] <PetefromTn_> Well folks
[23:38:15] <PetefromTn_> I managed to get the new CNC lathe project moved into position in the shop.
[23:38:22] <PetefromTn_> Good lord that bitch is heavy LOL
[23:39:03] <CaptHindsight> well, it should perform better than those wooden cnc lathes
[23:39:04] <PetefromTn_> I also continued stripping the paint from the sheetmetal so I can respray that
[23:39:13] <PetefromTn_> wooden CNC lathes?
[23:39:50] <CaptHindsight> did you see that link i found the other day with the wooden cnc machines?
[23:40:16] <PetefromTn_> I spent some time perusing ebay for a decent 5hp C frame face mount 3 phase inverter duty motor for the machine.
[23:40:33] <PetefromTn_> It looks like I am probably in the $300.00 range
[23:40:43] <CaptHindsight> http://kanawha-cnc.com/products.html this is no joke
[23:40:46] <PetefromTn_> Yeah I remember now I just did not get the correlation sorry
[23:41:05] <PetefromTn_> Oh it's a joke alright
[23:41:11] <CaptHindsight> heh
[23:45:55] <CaptHindsight> PetefromTn_: how much do you think the weight is?
[23:46:10] <CaptHindsight> how big is this new toy?
[23:46:38] <PetefromTn_> it's probably about 3k apparently
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[23:57:35] <Connor> Hey Guys.. Thoughts on placement of this Strain Relief / Cable Gland
http://www.ivdc.com/cnc/mill_10_27_14_02.jpg on the black box mounted on the stand..
http://www.ivdc.com/cnc/mill_10_27_14_01.jpg
[23:58:22] <Connor> Wires go into the PVC pipe upper left hand area.. I'm think out of the bottom on the left.. or top left above the DIN rail.
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