#linuxcnc Logs
May 09 2025
#linuxcnc Calendar
04:11 AM mrec: is anyone here using LinuxCNC for Mig welding?
04:26 AM mrec: I only welded one time in my life like 25 years ago .. with a flame back then as far as I remember
04:26 AM mrec: now we have the opportunity to build a small robot (we're working on it) and the plan is to wire it up with the welder and LinuxCNC
04:27 AM lcnc-relay: <meisterdippel@> mrec: i have a robot with lcnc, but no welding
05:51 AM lcnc-relay: <kitsune4702@> hello, I first used Mach 3, then UCCNC and I am still pretty dissatisfied with the lack of ethercat support and only trapezoidal velocity control in all those controllers. I am now looking with big hope into LinuxCNC since I saw there's a s-curve plugin available as well as ethercat, but my biggest hurdle right now is choosing the right hardware. I was considering using raspberry pi, but I've seen so many different ways of this...
05:51 AM lcnc-relay: ... being done that I honestly can't figure it out. Could someone help me find the right solution for me?
07:12 AM rdtsc-w: Kitsune4702, have you looked in https://forum.linuxcnc.org ? I remember reading something there about EtherCAT recently. Everything is constantly changing - EtherCAT support, and Rpi... most will tell you that Rpi "is possible" but a small PC would be better. Mini-ATX, micro-ATX, and ITX form-factor will all be more powerful and generally work better than a Rpi, even a Rpi5. Rpi is trickier (being Aarch64).
07:15 AM rdtsc-w: SW: you know cars these days... made of plastic and paperclips, held together with glue. Was that a bumped-bumper?
07:17 AM Deejay: hi
07:18 AM JT-Cave: AI Overview
07:18 AM JT-Cave: Learn more
07:18 AM JT-Cave: If the dash lights in your 1983 C3 Corvette are not working, the most likely causes are a blown fuse, a bad lightbulb, or a low dimmer switch setting. It could also be a more complex issue like a wiring problem, a faulty ignition switch, or even battery or alternator problems
07:18 AM JT-Cave: LOL 83 C3 both wrong
07:19 AM rdtsc-w: mrec: I only see industrial cnc welding robots; most are totally-proprietary Fanuc, ABB, Mitsubishi, etc.
07:19 AM rdtsc-w: JT, just saw where an AI got in trouble for congratulating someone for weening themselves off their anti-psychotics, heheh
07:19 AM JT-Cave: lol
07:19 AM rdtsc-w: Morning Deejay! :)
07:20 AM Deejay: hey :)
07:20 AM JT-Cave: 83 was C4 but only one survived the crusher
07:22 AM mrec: rdtsc-w: I saw a few videos on youtube where someone built a welding jig with LinuxCNC that will be an interesting setup
07:23 AM rdtsc-w: indeed; nothing to say it wouldn't work just fine :)
07:23 AM mrec: it's about the shop where the owner has died, and the kid is trying to take over however he lacks entrepreneurial spirit and his welding is substandard (I said it easier.. and showed him some robot welding videos where the weld looked consistent and not like someone pushing some glue on it)
07:24 AM mrec: his father already had a terrible welding skill but at least he had entrepreneurial spirit. However that kind of business is over so the junior is open for anything new now
07:25 AM rdtsc-w: welding is definitely an art form... better for the son if he doesn't have to breathe all those fumes though
07:25 AM mrec: and I'm the only one working there for free (and have full access to all machinery), all employees are gone too
07:25 AM mrec: practically the CNC in that shop is mine now since I replaced the controller if I remove my parts it's scrap again
07:26 AM mrec: his father died from cancer at the age of 65 very likely caused from welding
07:27 AM mrec: I did some research on that and it seems in the early days the even said welding fume is healthy
07:27 AM mrec: the cancer risk is 75% increased for those traditional welders
07:27 AM rdtsc-w: sounds a lot like the "Radium girls"
07:29 AM lcnc-relay: <ccatlett1984@> My day job, I do laser welding. But we're using industrial control units for it. Both of our machines run 4,000 w fiber laser sources.
07:30 AM rdtsc-w: Have you considered some sort of business arrangement with the son? Sounds like things could go belly-up at any time...
07:30 AM mrec: not yet, but I'm willing to buy the CNC/compressor/band saw for scrap and move it to a smaller place
07:34 AM rdtsc-w: sounds like either grow and manage the business, or part-it-out
07:42 AM mrec: if I reset the settings the toolchanger program will be gone and the PLC will enter into copy protection mode again
07:43 AM mrec: which means the PLC cannot be edited or viewed anymore on the console.
07:43 AM mrec: we talked about that with him and he is aware they tried to sell it earlier but no one wanted to buy it
07:44 AM mrec: from my point of view I am more than happy with that machine 0.01mm accuracy, high speed ethernet interface (loading the data from CF disk, and uploading it via FTP)
07:45 AM mrec: I was able to download and decode the PLC, that gave me an overview about the toolchanger commands so I was able to re-implement it
07:46 AM mrec: and yesterday I was able to shoot 50 BT40 toolholder (mostly ER20) for 8$ each :-)
07:47 AM mrec: from another shop which just gave up due to no orders
07:47 AM rdtsc-w: maybe consolidate two shops into one... best wishes on all your upcoming big decisions
07:49 AM mrec: now we have a pick and place machine/assembly line and machining shop my side has orders I'm just new to the machining part I can support it for some time.
07:50 AM mrec: let's see how things will turn out.
08:29 AM lcnc-relay: <skunkworks8841@> rdtsc-w: I smacked a deer
08:43 AM rdtsc-w: ouch... Deer: 1 Paperclips and Glue: 0
08:44 AM lcnc-relay: <skunkworks8841@> yep
08:45 AM rdtsc-w: glad it wasn't worse though... hit one on a country road in a cargo van and it was about totaled
09:08 AM lcnc-relay: <skunkworks8841@> the vw is a 2017 - the insurence company totalled it.
09:31 AM rdtsc-w: the van incident was at 2:45am, coming back from a gig, loaded with a ton of music gear... had to wake a friend to help transport it all... very late night lol
09:47 AM lcnc-relay: <skunkworks8841@> yeck
09:49 AM lcnc-relay: <skunkworks8841@> the radiator and condenser are certainly tweaked.. But not leaking so I am not worrying about it.
10:13 AM roycroft: i feel really fortunate that i've never hit a deer
10:13 AM roycroft: i've come so close so many times
10:14 AM roycroft: i chalk it up to part luck, part awareness - i know most of the deer crossings on the routes i normally travel, and i'm very cautious around them, especially when driving around dawn or dusk
10:15 AM roycroft: but in the end, i think luck has a lot to do with it
10:27 AM lcnc-relay: <skunkworks8841@> I hit the deer in a spot were there are normally not deer. I see deer every day on the drive to work. I am suprised I haven't hit more.
10:39 AM roycroft: deer have strange habits that unfortunately are conducive to their being hit
11:00 AM JT-Shop: I almost hit a deer on the Bluewing... saw it at the edge of the woods and slammed on the brakes and it jumped across the road in front of me
11:00 AM JT-Shop: I was very thankful that the Bluewing has amazing brakes
11:02 AM roycroft: https://www.youtube.com/watch?v=yTSPFWZxAao
11:03 AM roycroft: not exactly about a deer (although deer are mentioned), but based on a real life event
11:09 AM JT-Shop: yup you hit a moose at highway speeds and it will destroy your vehicle
11:10 AM JT-Shop: I've see a lot of truck in Alaska that were really totaled
11:11 AM roycroft: and you could be dead
11:11 AM JT-Shop: yup
11:11 AM roycroft: moose about about 3x as big as deer
11:11 AM roycroft: the girlyman moose incident took place in maine
11:20 AM roycroft: my new saw will be here today, and the rail for it on monday
11:20 AM roycroft: it should be fun to start using it for framing and breaking down dimensional lumber
11:21 AM JT-Shop: what did you get?
11:21 AM roycroft: i got a festool hk 55
11:21 AM roycroft: it's a sidewinder saw, but it fits on a track
11:21 AM roycroft: and festool make special tracks for that saw that index at any set angle
11:22 AM roycroft: the saw also attaches to the track, unlike the ts 55/60/75, that just run along the track
11:22 AM roycroft: so you pick up the saw and the track stays attached
11:22 AM roycroft: those tracks are short, of course
11:23 AM roycroft: since i plan on reframing my shop roof this summer, having this saw with the angle stop setting should make cutting rafters go about as easily as using a miter saw
11:23 AM roycroft: and just as accurately
11:24 AM roycroft: i'm thinking that using that saw for accurate, repeatable cuts, and using dominos to join the rafter sections together should make for a very strong, accurate roof frame that's easy to build
11:25 AM roycroft: https://www.youtube.com/watch?v=TPdtXHL48og
11:26 AM roycroft: the saw is not currently available, and as such it's selling for crazy prices online
11:26 AM roycroft: i got it from the festool recon store, and i could flip it for twice what i paid for it the instant it arrives
11:27 AM bjorkintosh: festool looks like a very expensive kit for grown ups.
11:27 AM roycroft: the battery version is all that's currently available new, but i do not want to invest in yet another battery ecosystem
11:27 AM roycroft: bjrkintosh: if you make your living using those kinds of tools festool are the cheapest you can get
11:28 AM roycroft: they save so much time
11:28 AM bjorkintosh: I imagine. it's well thought out.
11:29 AM * JT-Shop hears a nap calling his name
11:29 AM roycroft: festo/festool have been around for 100 years
11:29 AM roycroft: festo invented the chain saw
11:29 AM roycroft: that was their first tool
11:30 AM roycroft: i was considering the festool miter saw for the roofing project, but it's $1350 on the recon site, and $1600 new
11:30 AM roycroft: and i don't have room in my shop for a miter station
11:31 AM roycroft: so the builder's saw with the track made more sense
11:35 AM bjorkintosh: really fancy. I like it.
11:43 AM roycroft: festool is a system, and that's a big part of what makes it so efficient to use
11:59 AM -!- #linuxcnc mode set to +v by ChanServ
11:59 AM roycroft: david souter has left the building
11:59 AM roycroft: oh, not i'm not so sure about the new pope
11:59 AM roycroft: at first i liked him and thought he would be a good pope
11:59 AM bjorkintosh: why? did Pope Bob say something?
11:59 AM roycroft: but his brother just confessed in an interview that the pope is a white sox fan, not a cubs fan
11:59 AM bjorkintosh: oh. sports thing.
11:59 AM * bjorkintosh is instantly lost.
11:59 AM roycroft: i too grew up on the south side of chicago
11:59 AM roycroft: but i've always been a cubs fan
11:59 AM roycroft: because that is the correct fandom :)
11:59 AM roycroft: and the pope's mother was a cubs fan
11:59 AM roycroft: so maybe it was just a rebellion thing
11:59 AM * roycroft can appreciate that
11:59 AM roycroft: my parents were white sox fans
11:59 AM roycroft: i became a cubs fan at a very early age, and i don't think it was rebellion
11:59 AM roycroft: i think it was mostly because wrigley field has the nice vine-covered brick walls, and real grass
12:24 PM roycroft: i hope everybody has a hard hat handy
12:25 PM roycroft: the soviet venus probe will be returning to earth tomorrow, and there's a very good chance it will survive reentry intact
12:26 PM lcnc-relay: <skunkworks8841@> yah - considering it was made to survive venus reentry
12:27 PM xxcoder: so it was secretly venus launched probe? ;)
12:27 PM lcnc-relay: <skunkworks8841@> it will hit the ground going a few hundred miles an hour. It will make an inmpression
12:27 PM xxcoder: RE-entry lol
12:27 PM roycroft: no secret
12:27 PM roycroft: but a typical soviet screw-up
12:27 PM lcnc-relay: <skunkworks8841@> it might have been a secret that it failed..
12:27 PM lcnc-relay: <skunkworks8841@> for a while
12:27 PM roycroft: it was lauched 53 years ago to land on venus
12:28 PM roycroft: but it never escaped earth's gravitational field
12:28 PM bjorkintosh: impressive.
12:28 PM roycroft: and has been slowly returning to earth for over half a century
12:28 PM bjorkintosh: but the venutian atmosphere is far too dense to be penetrated without serious detriment to the probe.
12:28 PM bjorkintosh: basically it bounced.
12:28 PM roycroft: it was built to withstand that
12:28 PM xxcoder: fun. I recall star trek had the "cleaning space" event
12:29 PM lcnc-relay: <skunkworks8841@> the boost section? re-entered in the early 80's
12:29 PM roycroft: it's predicted to land between 52 degrees north and 52 degrees south of the equator
12:29 PM roycroft: so maybe head to the yukon for the weekend?
12:29 PM bjorkintosh: hmm. what it needs is a big net.
12:29 PM lcnc-relay: <skunkworks8841@> we are 43..
12:30 PM lcnc-relay: <skunkworks8841@> seems a bit close 😉
12:30 PM roycroft: i live almost 44 degrees north
12:30 PM roycroft: but i do know where my hard hat is
12:30 PM lcnc-relay: <skunkworks8841@> My son asked a few nights ago - about how many miles are each lattitude degree...
12:30 PM lcnc-relay: <skunkworks8841@> It is about 80 miles
12:31 PM lcnc-relay: <skunkworks8841@> *70 miles
12:32 PM bjorkintosh: if it's not covered in Reynolds tin foil, the hard hat won't do the right thing!
12:32 PM bjorkintosh: I personally wouldn't trust any other brands.
12:32 PM roycroft: probe in the road, probe in the road
12:33 PM roycroft: i don't wanna see no probe in the road
12:45 PM xxcoder: skunkworks, re-entry to venus impiles that probe had come from venus, hence my joke ;)
12:47 PM lcnc-relay: <skunkworks8841@> lol
01:02 PM roycroft: i think the real thing we need to know is: where will eric cartman be tomorrow?
01:02 PM roycroft: likely he'll be in south park, so one should avoid colorado tomorrow
01:02 PM roycroft: as the probe will likely come down and probe cartmans' bum
01:03 PM xxcoder: it sounds far dirtier than it have any right to be.
01:06 PM roycroft: https://www.youtube.com/watch?v=xUxQzVj1V4o
01:06 PM roycroft: it's south park, so yeah
01:07 PM roycroft: the very first south park episode, in fact
01:07 PM xxcoder: not surpised. I heard they often pass dirtier jokes by censors after their less dirty first versions get blocked
01:08 PM xxcoder: in fact the season pack "bigger, longer and uncut" was joke they passed by censors after orginal title was blocked
01:08 PM xxcoder: orginal was South Park: All Hell Breaks Loose
01:08 PM xxcoder: which is far more tame
01:52 PM bjorkintosh: roycroft: what are you talking about? Cartman is running the white house.
01:52 PM bjorkintosh: he's the president!
01:53 PM bjorkintosh: sorry, it's the only cogent explanation I can come up with for the present milieu.
01:54 PM lcnc-relay: <roguish> bjorkintosh: nah, Cartman is way smarter that the turd in the whitehouse....
01:55 PM bjorkintosh: I remain ... Tarrified!
01:55 PM bjorkintosh: damn that fool.
01:58 PM roycroft: i think i'm going to focus on getting that mini-router cutting air this weekend
01:58 PM roycroft: and maybe even get the spindle going
01:59 PM roycroft: i still have to sort out the networking on the rpi4
01:59 PM roycroft: but i don't think that will take long
02:03 PM xxcoder: hopefully air dont have too much sideload. joking aside, thats cool :) hope it works well.
02:03 PM xxcoder: you probably want to retighten the couplers
02:05 PM roycroft: my plan is to get the controller hardware working, then do some air cut testing, then get the spindle working, then disassemble, clean, lubricate, and reassemble the machine
02:05 PM roycroft: then add some limit switches
02:05 PM roycroft: then make some real chips
02:05 PM roycroft: and i'll need to figure out how to make some kind of enclosure or it somewhere in the mix
02:06 PM roycroft: probably something temporary at first, but it will need a good, solid enclosure if i'm to use it in the studio - i can't have chips and sawdust flying about
02:16 PM rdtsc: could build it atop a (choose your material... steel) drum - chips fall into drum
02:19 PM roycroft: that would be a waste of a lot of precious real estate
02:20 PM xxcoder: interesting IH video
02:20 PM roycroft: this is a small, bench-mounted machine
02:20 PM roycroft: the "bench" will be a cabinet where i can store stuff
02:20 PM roycroft: it's also going to live in an arts/crafts studio, and aesthetics mean a lot there
02:20 PM roycroft: more than in a shop
02:20 PM roycroft: so it has to look nice
02:21 PM xxcoder: fancy wood doors, with inlays made by router?
02:21 PM xxcoder: whole door is clear plastic, but with front of wood pattern to make it look good lolo
02:22 PM roycroft: no, it doesn't need to look fancy
02:22 PM roycroft: but it needs to be neat and clean
04:30 PM -!- #linuxcnc mode set to +v by ChanServ
04:42 PM Tom_itx is now known as Tom_L
05:59 PM lcnc-relay: <ccatlett1984@> Can i get a pair of eyes on my machine config. It moves (correct direction), homing sensor triggers, but tries to keep moving.
05:59 PM lcnc-relay: https://github.com/ccatlett1984/LinuxCNC_configs/tree/main/dmc_test
05:59 PM lcnc-relay: Homing Z first, Z limit switch triggered at the top of travel.
06:06 PM lcnc-relay: <skunkworks8841@> which axis?
06:08 PM JT-Shop: sounds like the latch direction is wrong
06:08 PM lcnc-relay: <ccatlett1984@> Z axis
06:09 PM lcnc-relay: <ccatlett1984@> i see the sensor triggering in hal show config
06:10 PM lcnc-relay: <ccatlett1984@> I just got it moving, was missing the stepper sections before (need to add that to mesact)
06:10 PM JT-Shop: http://linuxcnc.org/docs/stable/html/config/ini-homing.html#_homing_sequence
06:14 PM JT-Shop: I find pnc configs difficult to read and comprehend
06:15 PM JT-Shop: they bounce around a lot and have lots of nets that do nothing
06:16 PM lcnc-relay: <ccatlett1984@> ok, looking at the docs, i'm using a shared limit/home
06:17 PM JT-Shop: that just means don't say your on a limit when homing
06:18 PM * JT-Shop calls it a day
07:02 PM rdtsc: ccatlett1984, not sure if kinstype=BOTH is needed on a traditional 3-joint machine; it is definitely needed on a 4-joint gantry machine
07:02 PM rdtsc: I suspect HOME_ values positive/negative
07:03 PM lcnc-relay: <ccatlett1984@> I just chanced the home values, and am going to go test it
07:03 PM lcnc-relay: <ccatlett1984@> changed
07:04 PM rdtsc: the good news is, once you figure this out, will never have to touch it again :)
07:04 PM lcnc-relay: <ccatlett1984@> I'm just happy i finally figured out what was missing to get it to move
07:04 PM rdtsc: it's a fairly complicated beast
07:05 PM lcnc-relay: <ccatlett1984@> i'm well-versed with klipper on the fdm printer side of things, but the number of layers in linuxcnc hurts my brain
07:39 PM lcnc-relay: <skunkworks8841@> lol.. I had no clue how easy 3d printing was until I got my own.. Then I figured out why 3d printer people had so much trouble going cnc.. They want to just push a button and 'print' the part
07:40 PM lcnc-relay: <skunkworks8841@> it has gotten a bit easier with the cad/cam that is out there now. But it certainly takes a bit more work.
07:42 PM xxcoder: I went backwards. I learned cnc first
07:44 PM lcnc-relay: <skunkworks8841@> me too
07:45 PM xxcoder: 3d printing is amazing. I want to get printing again lol. expecially now that I have nook simple touch with partially rotted rubber front plate I want to replace
07:48 PM lcnc-relay: <skunkworks8841@> https://photos.app.goo.gl/kvRRXYXAFg43xHt89
07:48 PM lcnc-relay: <skunkworks8841@> almost to the radiator support
07:49 PM lcnc-relay: <skunkworks8841@> so many small pieces of plastic...
07:49 PM lcnc-relay: <skunkworks8841@> so nice with the car lift - when I first got this car - it had frontend damage and did the work in my garage. A lot more work
07:59 PM roycroft: i spent some time doing yard work after work today
07:59 PM roycroft: stuff i should not have done - i moved a half barrel planter and a bunch of big rocks
08:00 PM xxcoder: tsk tsk you need to be punished
08:00 PM xxcoder: back pain?
08:00 PM roycroft: i'm feeling it
08:00 PM roycroft: i did not damage anything, but i'm pushing the muscles more than they want to be pushed
08:01 PM roycroft: there is so much to do, and i can only spend an hour or so per day doing that kind of work
08:01 PM xxcoder: man steak fries is as good as ever. even after realizing I forgot to add something salty at all
08:02 PM roycroft: it's pizza night here
08:02 PM roycroft: and i got some maitake mushrooms for this week's pizza
08:02 PM xxcoder: I didnt feel like doing anything hard, but wanted something hot. so fries.
08:04 PM roycroft: the planter i moved was for mojito mint
08:04 PM xxcoder: was so tired after going to store to buy distilled water. fun!
08:04 PM roycroft: when i hired the movers last year i had them put the planters off to the side, and it was hard to water them
08:04 PM xxcoder: thats cool. been growing some plants for fun.
08:05 PM roycroft: my mojito mint, which i'd had for 20+ years, died
08:05 PM roycroft: and i finally found a new start the other day (it's pretty uncommon)
08:05 PM xxcoder: wow thats quite long life
08:05 PM roycroft: so i really wanted to get it planted before it died
08:05 PM roycroft: mint is hard to kill
08:05 PM xxcoder: my oldest current plant is avocodo tree. its 2 years old now, and still foot tall
08:06 PM roycroft: my peppermint survived somehow, but it died almost all the way back
08:06 PM roycroft: i'll move it this weekend, and clean up the planter
08:06 PM roycroft: i also have rosemary in a big planter, but it's a lot more drought-tolerant than mint, and is thriving
08:06 PM xxcoder: interesting
08:07 PM roycroft: it's getting moved as well - i made a nice place for the planters, put landscaping cloth on the ground underneath where they go, and i'll be piling rocks up in between the planters
08:07 PM roycroft: the goal being to keep the weeds down and make for good drainage
08:10 PM xxcoder: cool :)
08:11 PM roycroft: they're also out next to the herb garden, which will be the first place to get underground irrigation
08:11 PM roycroft: maybe this summer
08:14 PM lcnc-relay: <skunkworks8841@> looks like the plastic bracket on the intercooler radiator broke that holds the radiators together broke.
08:14 PM lcnc-relay: <skunkworks8841@> going to have to make something up
08:15 PM roycroft: remember - duct tape went to the moon and fixed the lunar rover
08:15 PM bjorkintosh: hmm.
08:15 PM bjorkintosh: did it?
08:15 PM bjorkintosh: I mean, I s'pose the components had to be ultra light to make it to space in the first place.
08:16 PM roycroft: especially in the late '60s
08:16 PM roycroft: i've seen the lem and it's pretty tiny
08:17 PM lcnc-relay: <skunkworks8841@> I think I can make a simple bracket to tie them together.
08:17 PM lcnc-relay: <skunkworks8841@> trying to decide if I am going to try to straiten the condenser
08:29 PM * roycroft should go tidy the kitchen and start making the pizza, if he can get up from the recliner
08:30 PM xxcoder: now thats real trap
08:42 PM bjorkintosh: tidy. that word. ugh. my office space. it needs that word. ugh.
08:46 PM roycroft: i was able to get up
08:46 PM roycroft: when the recliner is in the upright position i can move the head support forward and it kind of ejects me
08:47 PM roycroft: not quite, but almost
08:48 PM roycroft: anyway, kitchen tidied, oven warming, dough rising
08:48 PM roycroft: it's all good
08:59 PM pcw--home: Well that was fun, tried a test install of LinuxCNC-SCurve on a test PC and the install script wiped everything (including itself) except the base install...
09:00 PM lcnc-relay: <skunkworks8841@> wow - that sucks
09:00 PM lcnc-relay: <skunkworks8841@> I have been reading the thread. I have not tried it - too many projects currently
09:01 PM pcw--home: Yeah it was a LinuxCNC test platform and our machine for initializing Efinix based FPGA cards
09:01 PM lcnc-relay: <skunkworks8841@> but - from testing the circular arc blending - it takes hours and hours and many different gcode programs to fully test the TP>
09:01 PM lcnc-relay: <skunkworks8841@> and there was still corner cases
09:03 PM lcnc-relay: <skunkworks8841@> But - I am glad you are testing it 🙂 thank you
09:03 PM pcw--home: Yeah, What testing I did seem to show that acceleration bound did not work (no evidence of trapezoidal accel profiles)
09:04 PM pcw--home: might be scaling, or dependence on jerk /velocity bounding
09:06 PM pcw--home: but since acceleration (well torque) is a hard physical limit in drives it's important that the bounding works
09:06 PM lcnc-relay: <skunkworks8841@> right
09:07 PM lcnc-relay: <skunkworks8841@> I think tormach has a 'poor mans' jerk limiting.
09:07 PM pcw--home: Still nice to see jerk limiting, it eliminates that error spike an the beginning and end of motion
09:07 PM lcnc-relay: <skunkworks8841@> that just adds a filter to acceleration.
09:08 PM lcnc-relay: <skunkworks8841@> right - the k&t would really thump if I turned up the accelleration.
09:10 PM pcw--home: Yeah, acceleration on non-jerk limited machines is often more limited by following error at infinite jerk points
09:11 PM pcw--home: since no actual physical machine can follow an infinite jerk profile
09:13 PM pcw--home: Which means you may well get better error performance at higher acceleration with jerk limiting
11:35 PM xxcoder: https://youtu.be/n5mZiISZxQM crazy guy
11:36 PM xxcoder: 50 mph scooter