#linuxcnc Logs

Feb 24 2025

01:06 AM Deejay: moin
02:48 AM lcnc-relay: <TurBoss> good morning
03:32 AM lcnc-relay: <oddname_skane@> @Tom, trying to implement parts of the other gits now, atleast now I know how to do it thanks to your help 🙂 prolog etc accepted in another config now, just need to understand why the tab for the ATC is not showing up now 😄
03:33 AM lcnc-relay: <oddname_skane@> discussed with one of the creators for one of the gits, some parts are better done that way with the toolsetter so
03:35 AM lcnc-relay: <oddname_skane@> ordered some switches so I can make some rudimentary breaker box for linuxcnctinkering, all the fans, pumbs etc drives me crazy when I need to think 😄
03:35 AM lcnc-relay: <oddname_skane@> I need a tinkering mode on the machine with just plain pc-power and 5V for the mesa 🙂
03:39 AM lcnc-relay: <captainhindsight_.@> Above freezing even at night all this week. 💯
04:25 AM Tom_L: morning
05:21 AM lcnc-relay: <oddname_skane@> moin
07:11 AM lcnc-relay: <skunkworks8841@> captainhindsight_.@ Same
07:41 AM lcnc-relay: <meisterdippel@> moin
09:17 AM lcnc-relay: <voiditswarranty@> roycroft: re: motor case bolt hole lineup, I grab a piece of tig rod much longer than the motor, and feed it through the end cap, the winding case, and the opposite end cap before putting the caps on, then a tiny bit of electrical tape on the long bolt to the end of the tig rod and pull it through. like pulling wire through a house with those fiberglass rods.
10:02 AM lcnc-relay: <skunkworks8841@> This is probably sacrolige in some circles.. (monarch 10ee)
10:02 AM lcnc-relay: <skunkworks8841@> https://photos.app.goo.gl/s61TAC8ZLLJUXbCg6
10:02 AM lcnc-relay: <skunkworks8841@> sacrilege.
12:12 PM Unterhausen: JT what wood lathe chuck did you get? I think I might have to get a oneway because it's hard to find a chuck that fits a 1 1/8" spindle
12:19 PM roycroft: my old lathe had a really weird hybrid spindle mount
12:19 PM roycroft: 58mm x 11tpi, iirc
12:20 PM roycroft: it was definitely a metric diameter and unified thread pitch
12:20 PM roycroft: apparently a bunch of stuff coming out of taiwan in the '80s had that hybrid stuff going on
12:32 PM roycroft: i'm thinking it was 8tpi, now that i ponder it a bit more
12:32 PM roycroft: i have a drawing somewhere that i did when i made a new backing plate for a 4-jaw, but i don't know where it is, nor that it really matters any more
12:50 PM JT-Cave: I had some machines from tiawan that had british whitworth bolts and tapped holes
12:51 PM roycroft: and whitworth went away in wwii
12:51 PM roycroft: before taiwan existed
12:51 PM roycroft: as an autonomous state, that is
12:51 PM JT-Cave: took me a while to figure out what they were
12:52 PM roycroft: whitworth are *almost* unified thread compatible
12:52 PM roycroft: but if the tolerance is tight they don't quite work
12:52 PM lcnc-relay: <lechner> Hi, what kind of surface accuracy can I expect, with the right end mill, from a Nomad 3D Carbide 3, please?
12:54 PM lcnc-relay: <skunkworks8841@> lol.. I don't think anyone here can answer that
12:55 PM lcnc-relay: <lechner> Okay, what kind of surface accuracy can I get from a consumer-grade CNC mill, please?
12:55 PM lcnc-relay: <lechner> Maybe let's start with the stepping
12:56 PM lcnc-relay: <lechner> It's sub-millimeter, right?
12:56 PM lcnc-relay: <lechner> this is the tool positioning
12:57 PM roycroft: glass smooth or rough concrete, depending on the machine and the operator's skills
12:57 PM lcnc-relay: <lechner> i am looking for smooth acrylic
12:58 PM roycroft: if you get a cheap machine and don't do any tuning, you're going to get a finish (and accuracy) more like rough concrete
12:59 PM roycroft: go to clickspring's youtube channel to see what you can get from a consumer-grade machine that's been fine-tuned and is in the hands of a skilled operator
01:00 PM JT-Cave: lunch break is over back to work
01:01 PM roycroft: in other words, the answer is that it depends on YOU, and how much time and energy you're willing to put in learing the machine and fine-tuning it
01:01 PM lcnc-relay: <skunkworks8841@> one of these?
01:01 PM lcnc-relay: <skunkworks8841@> https://shop.carbide3d.com/products/nomad-3?variant=32912906354749
01:02 PM lcnc-relay: <lechner> Yes, my library has one of these although they are reluctant to let me use it
01:04 PM lcnc-relay: <lechner> I am willing to invest any time I need (and calculate tool paths depending on mill shape) but I don't even know how accurate the positioning of any of these tools is
01:05 PM roycroft: if you don't personally own and control the machine the you cannot rely on its being accurate
01:05 PM roycroft: but you can always test it every time
01:05 PM lcnc-relay: <lechner> right now it's for a proof of concept
01:05 PM roycroft: machine a 2cm x 2cm box that's 5mm high
01:05 PM roycroft: then measure it
01:06 PM lcnc-relay: <lechner> i am looking for an even surface, not size
01:07 PM roycroft: i'd say the machine is an unknown every time you approach it
01:08 PM roycroft: since however it worked the last time you used it, someone has likely had an opportunity to mess it up after
01:08 PM lcnc-relay: <lechner> It's locked away and I will likely be the only one using it
01:08 PM roycroft: but for a smooth surface finish on acrylic, isn't that what a small propane torch is made for? :)
01:09 PM lcnc-relay: <lechner> i might use that for post-processing but I need a curve
01:14 PM Rab: roycroft, it's been a crazy week plus, but I survived my Oregon trip and got my prize back to Texas.
01:14 PM Rab: https://reboots.g-cipher.net/deckel/deckel1.jpg https://reboots.g-cipher.net/deckel/deckel2.jpg https://reboots.g-cipher.net/deckel/deckel3.jpg
01:15 PM roycroft: nice
01:15 PM lcnc-relay: <lechner> wow
01:16 PM roycroft: and of course, right after you dealt with our mountain passes (or the gorge), it got warm and the snow went away
01:16 PM Rab: Portland was in a crazy blizzard that Thursday, I gave the Lyft driver a $20 tip because he was obviously risking his life...then driving the U-Haul down I5 I was seeing accidents happen in front of me, vehicles spinning out of the way.
01:17 PM roycroft: and today there are floods because it got warm, the snow stopped, and it started raining heavily in the passes
01:17 PM Rab: But Corvallis was really pretty good, and I5 south to LA was well plowed and de-iced. Gotta take the tire chains back to Les Schwab on my next west coast work project.
01:19 PM Rab: All told I don't think I saved a penny over crating for LTL freight with a forklift at both ends, and I had to sleep at truckstops for three days, but it's done.
01:19 PM roycroft: it's a nice drive
01:19 PM roycroft: if you like road trips
01:20 PM lcnc-relay: <lechner> the drive through Arizona?
01:20 PM Rab: It wasn't particularly pleasant, but the snowy mountains were beautiful. Not something we have here.
01:21 PM roycroft: i don't know about the i-10 part
01:21 PM roycroft: but at least down to sacramento the drive is really nice
01:21 PM roycroft: sacramento to la kind of boring and not a good place to go in the summer
01:21 PM roycroft: it gets too hot
01:21 PM Rab: I10 is mostly straight, flat, and boring, which made it a good choice vs the northern route through Utah etc.
01:22 PM roycroft: so the first quarter of the drive is pretty :)
01:22 PM lcnc-relay: <lechner> Sorry I chimed in. I moved from San Antonio to the SF Bay Area in several stages, including by bike. I do not recommend the Utah route
01:22 PM roycroft: new mexico is the one place in the continental us that i've never been to that i want to visit
01:22 PM roycroft: i don't know if i-10 through new mexico is a good way to see the state
01:23 PM lcnc-relay: <lechner> route 66
01:23 PM roycroft: i'm not a fan of utah
01:23 PM Rab: lechner, I drive a lot from Austin to Portland for work, but rarely during the winter season.
01:23 PM roycroft: too many mormons there
01:23 PM roycroft: who are mostly nice people, i must say
01:24 PM roycroft: but once i got bumped from a flight from ord to pdx, and got rebooked through salt lake city
01:24 PM lcnc-relay: <lechner> there are more LDS folks in California than in Texas, I think!
01:24 PM roycroft: i had been traveling for many hours, and was really tired, due to the flight screwup
01:24 PM roycroft: all i wanted when i got to salt lake was a coffee
01:25 PM lcnc-relay: <lechner> not allowed
01:25 PM roycroft: but there was none to be found at the airport - it was early evening, and while the airport restaurants and the like were open, they were not serving coffee
01:25 PM roycroft: and starbuck's was closed
01:25 PM roycroft: i developed a bad attitude toward utah then
01:26 PM Rab: SLC is pretty, I guess liberalized might be the word. Lots of transplants bringing lots of microbreweries etc.
01:26 PM roycroft: and i can tell you there are more mormons in idaho, with its tiny population, than in california, with its huge population
01:27 PM roycroft: yeah, it is liberalized, and know there are some microbreweries there
01:27 PM roycroft: this was in the mid-late '90s
01:27 PM roycroft: and i know things have changed since then
01:27 PM roycroft: i've had no need to go near utah since then, though
01:27 PM Rab: Yes, the church has a substantial presence in Utah Idaho and Montana.
01:27 PM roycroft: and yes, it is very pretty around slc
01:27 PM lcnc-relay: <lechner> i like utah and LDS but the route is longer and more boring than I-10 in some places (think salt flats) and more challenging in others
01:28 PM Rab: I meant it was pretty liberalized, I don't think SLC area is very attractive. Utah's got some spectacular scenery elsewhere, though.
01:28 PM lcnc-relay: <lechner> Yeah
01:30 PM lcnc-relay: <lechner> So what kind of machine did you buy and why, and how much was it?
01:30 PM Rab: lechner, re: your question, the Nomad is a really lightweight little thing, but acrylic is probably a best-case material to realize the published specs. You will need sharp, new tooling and the right speed/feeds so the acrylic doesn't melt or gall.
01:30 PM xxcoder: termoplastics is annoying like that
01:31 PM Rab: I would recommend starting with a brand new 1/8" 2-flute carbide end mill from an economy name brand like Kyocera, that's what I typically use on plastics.
01:33 PM lcnc-relay: <lechner> Okay, thanks! That's roughly what I thought. Does it make sense to run a smaller mill over it after that?
01:33 PM Rab: And starting with a small depth of cut, less than half the diameter.
01:33 PM lcnc-relay: <lechner> How close should the passes be?
01:35 PM Rab: A smaller end mill won't improve surface finish at all, but you can do a lightweight finishing pass like .005-.010" (or metric equiv.) and that will help. There will be a sweet spot for best finish, you will probably need to experiment.
01:36 PM lcnc-relay: <lechner> Okay, will the machine pull the tool diagonally, or go up and then left (or right)?
01:38 PM Rab: Not sure I understand...are you asking if you can do ramps and 3D contouring?
01:40 PM lcnc-relay: <lechner> Yeah, sorry I'm so imprecise. I am a total CNC noobie, despite other engineering experience. I'd like to create a smooth and clear curve in the material, so I'm thinking a lot about the types of bits and the path they take through the material
01:40 PM Rab: The mill I got is a German-made Deckel FP2NC from the 1980s. It was $1,500, less than the guy could have made from parting it out...around half the cost of the Carbide 3D Nomad, to put things in perspective. :D
01:41 PM Rab: It's really the nicest thing I've ever owned, nicer than anything anybody I know locally has owned...I told my wife it was my midlife crisis sports car.
01:42 PM lcnc-relay: <lechner> That's a good deal! Let me know if you need help reading the manual. I am from Germany
01:42 PM lcnc-relay: <lechner> I am going to use that line with my wife also
01:42 PM Rab: The catch is that the control electronics are getting flaky. So the hope is to convert it to LinuxCNC, which will probably be a punishing project.
01:43 PM lcnc-relay: <lechner> The motors are still good?
01:43 PM Rab: lechner, great, thanks! I did get an English-language manual, and schematics in German and Swedish(!). I have a background in electronics, so those are pretty clear.
01:44 PM lcnc-relay: <lechner> You may encounter a service manual at some point
01:44 PM Rab: It was mechanically sound and running until the controller threw a fault, so...I sure hope so.
01:44 PM Unterhausen: It's mildly amusing that the lcnc facebook group has now attracted more than one person that isn't using lcnc
01:45 PM Rab: But the servos are big brushed DC motors which are kinda uncommon now. I'm hoping the Bosch servo drive is usable, otherwise it's going to be an expensive retrofit.
01:46 PM lcnc-relay: <lechner> What is the advantage, if it's okay to ask that in this forum, of using LinuxCNC over a GRBL box?
01:46 PM lcnc-relay: <skunkworks8841@> Deckel! nice
01:46 PM lcnc-relay: <skunkworks8841@> I always liked the looks of those machines
01:46 PM lcnc-relay: <skunkworks8841@> rab check ebay - you can still get AMC drives pretty cheap - just need a current and voltage.
01:47 PM lcnc-relay: <skunkworks8841@> Rab: also remember the AMC B series drives (brushless) will run brushed motors.
01:48 PM Rab: skunkworks8841, great tips, thanks!!
01:48 PM lcnc-relay: <lechner> If it's Bosch it'll last a hundred years
01:48 PM lcnc-relay: <skunkworks8841@> Are they resolvers or encoders?
01:50 PM lcnc-relay: <skunkworks8841@> or HEIDENHAIN ?
01:50 PM Rab: skunkworks8841, each axis has a tach on the motor and a glass Heidenhain scale that outputs some kind of sine-cosine signal. There are various options for conversion, a couple of DIY projects.
01:50 PM lcnc-relay: <skunkworks8841@> ah - yes - you can get converter boxes. I would use the scales 🙂
01:51 PM lcnc-relay: <skunkworks8841@> exe boxes
01:51 PM Rab: Looks like people have implemented nested control loops using both the scale and the tach. It's far beyond anything I have dealt with so far.
01:55 PM lcnc-relay: <lechner> That is really 1980s
01:56 PM lcnc-relay: <lechner> The Heidenhains scales are exciting
01:56 PM lcnc-relay: <skunkworks8841@> 2 of the 3 axis on the k&t are setup that way (tach to the drive - encoder to linuxcnc) but one of the tachs died and I switched to simulating the tach from linuxcnc - but I probably wouldn't even do that now and just setup a single pid loop through linuxcnc with the drive setup current or voltage.
01:56 PM Rab: Honestly my first goal is just to get the spindle and hydraulics powered and try to use it as a manual mill (which is a neat feature of the Deckel NC machines). Then start tickling the motors, and coming up with logic for all the switches and sensors...there is a crazy amount of automation packed into the machine. Speed changes are accomplished through three motors driving a hydraulic
01:56 PM Rab: transmission, and the error handling isn't trivial.
01:57 PM jpa-: Rab: if you can get higher resolution from the tachometer, the nested loops could provide better response; but if the scale has better resolution, i'd use only it
01:57 PM Rab: skunkworks8841, cool
01:58 PM Rab: jpa-, the various scales Deckel used are supposed to have very high resolution, although I don't know exactly what's installed on this machine.
01:58 PM lcnc-relay: <lechner> i think those a good scales
01:58 PM lcnc-relay: <skunkworks8841@> you probably want about 10X your desired resolution..
01:58 PM lcnc-relay: <skunkworks8841@> atleast.
01:59 PM lcnc-relay: <skunkworks8841@> so if you want to position to .001" - you want scales that are .0001
01:59 PM lcnc-relay: <skunkworks8841@> and so on
02:01 PM jpa-: if the brushed DC motors are voltage-controlled, the feed-forward in PID should work fairly well and i don't see any need for using the tachometers.. for current-controlled motors it is a bit harder to tune as weight and forces affect the response, and there the reduced mechanical latency from motor to tachometer could help (there will always be some tiny amount of flex before the scale starts moving)
02:03 PM xxcoder: its always best to have .xxxx resolution to have .xxx precision
02:03 PM lcnc-relay: <skunkworks8841@> ^that is worded better
02:04 PM lcnc-relay: <skunkworks8841@> tuning isn't ever perfect - but you can usually tune to under 10 encoder counts.
02:05 PM Rab: jpa-, good to know. I have a Mesa 7I77-6I25 kit that I got for another servo project, it seems like the right fit. Not sure if it has analog inputs for the tach. The Bosch drive is +-10V input, so that part should be fine if I can get it working.
02:05 PM xxcoder: I ran a61 which have .xxxxx resolution. insane, you can even see last digit go up and down by 1 as it stays idle. its rated for .0001" precision
02:07 PM Rab: Deckel's published spec for the FP2NC measurement system is .0001 mm, which makes the positioning I've heard of .0001" seem reasonable.
02:08 PM Rab: But I don't know what to expect, yet.
02:10 PM jpa-: It's fairly easy to get good precision when in constant speed, fast acceleration and especially sharp corners are a problem. When the axis accelerates, there is easily 0.01mm or more flex in the mechanisms between motor and the scale. If the PID loop is tuned to fastest response, this can cause oscillations.
02:11 PM Rab: The Heidenhain scales apparently use light bulbs and photocells, I have no idea how they respond fast enough for the claimed resolution and speed of the machine.
02:12 PM jpa-: that can be an issue too, if the sensors themselves have significant latency; though 0.1 ms is usually fast enough and not that difficult electronically to achieve
02:12 PM lcnc-relay: <oddname_skane@> hmm can linuxcnc be used in a closed loop to create smoother motion?
02:13 PM Rab: There are certain operations the original Dialog 4 control isn't capable of that might be related to those constraints. I think helixes are a problem, that might be a computation issue. The control is very well regarded in general, though.
02:13 PM jpa-: oddname_skane@: sure, that's how it is typically used on any machine that has feedback
02:14 PM lcnc-relay: <oddname_skane@> I was under the impression It couldnt be done but cool 🙂
02:14 PM jpa-: Rab: seems unlikely that it would limit the type of operations, at most it would limit the maximum acceleration or feedrate possible
02:15 PM jpa-: but there is probably some reason why they also have tachometers :)
02:15 PM lcnc-relay: <skunkworks8841@> oddname_skane@ linuxcnc (emc) started out as a closed loop machine control.. Steppers were added after nist released it.
02:15 PM lcnc-relay: <oddname_skane@> ah
02:15 PM lcnc-relay: <oddname_skane@> just was part of a discussion of closed loop control, now I can say the other part is correct .D
02:16 PM lcnc-relay: <skunkworks8841@> most of my machines running linuxcnc are closed loop.
02:17 PM Rab: I errored out a Yaskawa robot arm once by programming movements that were within the limits of each axis, but added up to angular velocities that it couldn't handle. We had to reboot the control. A good demonstration of the issue.
02:18 PM bjork1intosh: Rab: was it a welder?
02:18 PM Rab: bjork1intosh, I think so.
02:18 PM Rab: https://sudoroom.org/wiki/Giant_robot_arm
02:19 PM Rab: lechner, if you'
02:19 PM Rab: re in the Bay Area then this is local to you if you want to mess with it.
02:22 PM lcnc-relay: <lechner> Yeah, thanks! That's not far away. I am in Fremont
02:25 PM lcnc-relay: <lechner> We also have a lot of robots in Fremont, but they are all in the Tesla factory. My neighbor works at Fanuc
02:28 PM Rab: lechner, about your earlier question...for a simple 3-axis stepper-driven machine, I don't think there's anything wrong with GRBL. I would say the value of LinuxCNC there is in the user interface, which is very highly customizable.
02:29 PM lcnc-relay: <lechner> Okay, thanks! I'm just learning
02:29 PM Tom_L: 72F
02:30 PM Tom_L: does grbl have drill cycles?
02:30 PM Rab: LinuxCNC can be extended to support very complex machine configurations with real-time requirements, which I don't think GRBL supports at all. I see there's a branch with some kind of servo support.
02:31 PM Unterhausen: plain old grbl won't even run 4 steppers unless something has changed
02:32 PM lcnc-relay: <lechner> Yeah, I can already tell that the kind of feedback you're planning on will overwhelm any Arduino or Raspberry Pi. sorry about the dumb question
02:32 PM Rab: Looks like there's a FreeCAD postprocessor for GRBL with drill cycles...I was also impressed to see that it supports probing, maybe other bells and whistles by now.
02:32 PM Unterhausen: I thought all of that was in grbl forks
02:33 PM lcnc-relay: <skunkworks8841@> lechner: raspberry pi with mesa interface card will easilly do closed loop
02:33 PM Unterhausen: but you can read digital ports with it, so maybe that supports probing?
02:33 PM Tom_L: i did up a post for grbl for my cad
02:33 PM Rab: That could be, I've never used it and am no expert.
02:33 PM Tom_L: not alot different
02:34 PM Unterhausen: I vaguely recall that grbl ran out of space because of some stuff I didn't want
02:34 PM Unterhausen: thought of modifying it and then I hit myself in the face with a hammer until I forgot about that
02:35 PM Tom_L: good call
02:38 PM Rab: lechner, embedded hardware is a good strategy to implement real-time control, and that's how the Mesa cards do it; there is an FPGA that maintains the control loop(s) and processes commands from LinuxCNC. Remora is another example using real-time hardware peripherals.
02:40 PM Rab: The new RPi chips have PRUs that could probably be used for this purpose, but I don't know if that's being developed.
02:42 PM lcnc-relay: <lechner> Yeah, overall the embedded strategy seemed like a good idea, which is why I asked. at the same time, I have a lot more extra PCs than Arduinos or Raspberry Pis
02:43 PM lcnc-relay: <lechner> The latter are kind of a joke for the price
02:44 PM Rab: I like having the LinuxCNC GUI, and the rest of Linux...I started out trying to use a BeagleBone Black with Machinekit, and it was just too limited.
02:46 PM lcnc-relay: <skunkworks8841@> Rab: I would slightly disagree.. The mesa and remora don't really have the control loops.. There is a realtime connection between linuxcnc and the external hardware. The external hardware does the things that computers don't do well. High speed encoder counting, High frequency pwm, High speed step generation. The mesa/remora hardware is just a part of the realtime loop.
02:47 PM lcnc-relay: <lechner> I ought to look into packaging LinuxCNC for GNU Guix. Right now there is only Candle
02:51 PM lcnc-relay: <skunkworks8841@> This is totally differant then a mach setup - were the external hardware is the motion controller. (in our world - linuxcnc is the motion controller)
02:56 PM lcnc-relay: <lechner> I meant to attact users like you
02:56 PM lcnc-relay: <lechner> attract
02:58 PM Rab: skunkworks8841, I stand corrected.
02:59 PM Tom_L: 74F
02:59 PM Tom_L: certainly better than the -5 we had
03:02 PM Tom_L: did machinekit fade off into the sunset or is it still being used/developed?
03:04 PM Rab: I was surprised to find out here that it's still around, as of a few weeks ago.
03:05 PM Tom_L: was it the only one that was ported to the BBB?
03:05 PM Tom_L: i think so...
03:06 PM lcnc-relay: <lechner> this was archived in 2020 https://github.com/machinekit/machinekit
03:08 PM Tom_L: looks like a few embers still burning but the fire has all but gone out
03:08 PM lcnc-relay: <lechner> kind of a nice name. i might offer to take over and merge any improvements. then i'd use the name
03:08 PM Tom_L: may wanna run that by mharbler
03:09 PM lcnc-relay: <lechner> never mind me. i'm a noobie, but also an unforker. peace on earth
03:11 PM Rab: Apparently the repo no longer represents current development, and it's found a commercial application in Pocket NC. No idea what hardware platform they use. I know Machinekit aspired to be multi-platform, not just BBB.
03:11 PM Tom_L: that was the only place i'd seen it but i really wasn't looking
03:12 PM Rab: Looks like Pocket NC at least use to use BBB.
03:15 PM lcnc-relay: <lechner> Let's get LinuxCNC running on an old Android phone...
03:15 PM Rab: <big_kevin420@> @Rab the archived repo is for the unifed machinekit
03:15 PM Rab: <big_kevin420@> they split it into 2 repos, HAL and CNC, all HAL is there, and the other cnc related stuff is in CNC
03:15 PM Rab: <big_kevin420@> its also a third repo to use linuxcnc gui with machinekit
03:15 PM Rab: <big_kevin420@> but it is still actively used by pocketNC for their machine
03:16 PM Rab: <big_kevin420@> it also looks like they use machinekit on tormach 6axis robots to connect it to ROS
03:16 PM lcnc-relay: <skunkworks8841@> we got to see the pocket nc at tormach at one of the get-togethers.
03:18 PM Rab: IIRC Tormach's PathPilot is a skinned LinuxCNC, don't know if they have contributed anything back.
03:19 PM lcnc-relay: <skunkworks8841@> The trajectory planner amoung other things..
03:19 PM Rab: Nice!
03:20 PM lcnc-relay: <skunkworks8841@> yes - lol - we didn't know tormach was bankrolling it until after it was viable..
05:04 PM BorgPipe_ is now known as NetPipe
06:04 PM memleak: hello :)
06:13 PM lcnc-relay: <grandixximo@> tormach has 6 axis look ahead and jerk/S-curve TP I have read in the forum, but there is no code, you need send them a check to get it...
06:25 PM lcnc-relay: <big_kevin420@> @rab , https://sudoroom.org/wiki/Giant_robot_arm is this you?
06:28 PM lcnc-relay: <big_kevin420@> @Rab " I errored out a Yaskawa robot arm once by programming movements that were within the limits of each axis, but added up to angular velocities that it couldn't handle"
06:28 PM lcnc-relay: <big_kevin420@> singularity?
06:28 PM lcnc-relay: <big_kevin420@> you guys didnt respond to my emails 10 years ago.....
06:42 PM lcnc-relay: <big_kevin420@> grandixximo@: "tormach has 6 axis look ahead and jerk/S-curve TP I have read in the forum" if this is for the 6axis robot, it is entirely possible it doesnt involve linuxcnc
06:43 PM lcnc-relay: <big_kevin420@> i think the way she goes is, the machinekit hal layer takes controls from ROS, and ros has its own tp's
06:48 PM xxcoder: hey CaptHindsight wonder how hard it would be to make tiny volume metal SLS lol
06:53 PM lcnc-relay: <captainhindsight_.@> https://imgur.com/gallery/pretty-boring-7sYBvUW Boring, yes. Dull, hardly.
06:54 PM lcnc-relay: <captainhindsight_.@> xxcoder: apparently nobody in China cares
06:54 PM lcnc-relay: <big_kevin420@> i was reading about those bars the other day, active vibration dampening. fascinating
06:55 PM xxcoder: capt hmm ok lol. problem with it is that many things is same price, small or large
06:55 PM xxcoder: more or less anyway. some cheats is possible im sure
06:56 PM roycroft: wow
06:56 PM roycroft: abom wold be jealous of those chips
06:57 PM roycroft: he won't win chip of the week any more if the operators of that machine enter the contest
06:59 PM lcnc-relay: <captainhindsight_.@> we were pulling chunks out of a Toyoda this morning that jammed the chip conveyors
07:00 PM lcnc-relay: <captainhindsight_.@> a couple at a time are no problem but when you release the past year of buildup it can't handle it on its own
07:01 PM * roycroft wishes the rain would hurry up and stop falling
07:02 PM roycroft: i want to see if my belt grinder still works, but there's a big drip that falls right on top of the motor and vfd, so i can't use it when it's raining
07:02 PM roycroft: i haven't powered that machine on in a year
07:08 PM lcnc-relay: <captainhindsight_.@> https://imgur.com/gallery/oh-this-looks-perfectly-safe-cV3kRck seems safe
07:09 PM lcnc-relay: <captainhindsight_.@> teaches coordination and quick reflexes
07:13 PM NetPipe: anyone here with 6 axis cnc that can do stone ? i would be interested in a digital sundial maybe with ruby laser attachment for burning wood
07:13 PM NetPipe: spot to place a ruby to use sunlight to etch wood or maybe an emerald laser
07:14 PM lcnc-relay: <captainhindsight_.@> I have one in a box next to me ready to be assembled
07:16 PM NetPipe: theres probably no size limit to how valuable they could be
07:16 PM NetPipe: be like a 20 footer for 5 grand
07:17 PM NetPipe: lasts aslong as the pyramids
07:17 PM NetPipe: 100' digital sunclock made from stone even
07:18 PM NetPipe: viewable from space
07:19 PM NetPipe: i wonder how much smaller ones would cost ide pay upto 400 for one
07:19 PM NetPipe: bbl
07:38 PM lcnc-relay: <captainhindsight_.@> I only take on 7+ figure projects now
08:20 PM lcnc-relay: <skunkworks8841@> https://www.youtube.com/watch?v=JkFLpfHfaVc
09:14 PM Tom_L: cool
09:20 PM lcnc-relay: <skunkworks8841@> Might work
09:21 PM Tom_L: at least we all know it has an estop
09:23 PM lcnc-relay: <skunkworks8841@> Not hooked up yet...
10:53 PM lcnc-relay: <captainhindsight_.@> https://photos.app.goo.gl/yMUkViinozUHTiW69