#linuxcnc Logs

Jun 05 2018

#linuxcnc Calendar

12:06 AM station: can sombody help me? Whats the advantage, why chose  Maslow CNC to go with geared DC motor with encoder in stead of using Nema with some round belt and Beltreductionweals. Belts are cheaper to replace than short lived metal geares. What am I missing?
12:09 AM station: Gears from what I know are not heavy usage long term. Why put them on a CNC?
12:13 AM station: Im thinking of building my ow from scrap so Im trying to make sense of the project
12:13 AM station: https://www.ebay.com/itm/CNC-Engraving-Machine-Accessory-5M-Timing-Pulley-Belt-Set-Kit-Reducer-Ratio-3-1-/251501515600
12:13 AM station: belts are cheap
12:13 AM station: the rest whan't break that soon with Brushless
12:13 AM station: the timing puley can even be made out of wood at any sise with a peace of the same belt fastend to it
12:38 AM fragalot: hi
01:03 AM fragalot: looks like the US is taking a leap forward towards insulation again
01:04 AM fragalot: scott pruitt just said asbestos isn't prohibited any more
01:07 AM IchGucksLive: hi all from germany
01:07 AM fragalot: hey IchGucksLive
01:08 AM IchGucksLive: station, there are better sellers then you posted
01:08 AM IchGucksLive: especial if you are in europ
01:08 AM IchGucksLive: Norm sellers
01:08 AM IchGucksLive: DIN ISO
01:09 AM IchGucksLive: http://maedler.de/
01:09 AM IchGucksLive: under tool there is a JAVA calculater for Achs distance and power managment
01:10 AM IchGucksLive: worm gear precision sets also
01:10 AM IchGucksLive: for good 4th axis
01:11 AM IchGucksLive: im off 2 garden
01:14 AM station: dose marlin or GRBL include the necessary math for a v plotter?
01:47 AM gloops: i dont know station, can be done with linuxcnc though
02:35 AM Deejay: moin
02:40 AM miss0r: mornin'
02:49 AM CaptHindsight: station: maybe try #marlin or #marlin-firmware or #masochists or #hityourselfintheheadwithahammer
02:53 AM CaptHindsight: http://www.maslowcnc.com/store/
02:54 AM CaptHindsight: http://www.maslowcnc.com/assemblyguide/
02:58 AM Loetmichel: station: depends on what load said gears have and what material they are
02:58 AM Loetmichel: light load and POM/metal combinations run next to forever without wear.
03:02 AM SpeedEvil is now known as Guest51359
03:23 AM Rob_ is now known as biffhero
04:03 AM RyanS: do ISO turning tools use any standards insert screws?
04:54 AM miss0r: Do any of you have any good methids of reattaching those stainless steel sheilds on oiled up way covers? (the harmonica kind)
04:56 AM XXCoder: would stripping it with say turpine or alchol work?
04:56 AM XXCoder: unless you mean seals and such:)
04:59 AM miss0r: erhm... i guess you could
04:59 AM miss0r: But I don't know how the harmonica will react to that
05:01 AM miss0r: https://imgur.com/a/RuALgWC
05:03 AM miss0r: but it is going to be hard to get in there to remove oil...
05:03 AM miss0r: I am going to take the harmonica off the machine, ofcourse, but we are talking very small slots, part of the stainless steel was glued into
05:03 AM miss0r: Its going to be a pain to get in there properly
05:04 AM XXCoder: ahh was thinking basic plate cover
05:04 AM XXCoder: dunno about that
05:07 AM miss0r: yeah... Those stainless strips just hang in there...
05:08 AM miss0r: I would love to fix it up, as this makes my maho look like something that is not worthy of peoples buisness
05:10 AM XXCoder: well good luck :)
05:13 AM miss0r: yeah.. thanks :D
05:16 AM BitEvil is now known as SpeedEvil
05:16 AM RyanS: hmm, good luck trying to find an M1.8 carbide insert screw
05:18 AM miss0r: have you looked at kemmler ?
05:21 AM RyanS: actually it's for http://www.ctctools.biz/stubr-indexable-boring-bar-i39/
05:23 AM miss0r: Sure. but I think kemmler sells those in bags of 10
05:27 AM miss0r: hmm. I might be wrong
06:49 AM jthornton: and here I was wondering what I was going to do with two open bags of mortar mix...
08:01 AM miss0r: EDM nearing completion: https://imgur.com/a/PxCUTvv
08:20 AM hendrik_cnc: hello does someone know if i could change the default start spindle speed in axis?
08:20 AM hendrik_cnc: i would like to start it with 9000 rpm instead of 100
08:41 AM Beachbumpete1: Don't you just program that?
08:42 AM JT-Shop: I think he means if you press the spindle on button
08:42 AM Beachbumpete1: IE M3 S9000?
08:42 AM Beachbumpete1: When I press the spindle on button mine is at zero I have to click the upspeed buttons to get to the desired speed I think.,
08:43 AM JT-Shop: err spindle CW or CCW button in Axis
08:43 AM miss0r: damnit! I'm having a hard time finding a local seller for a panasinic toughbook cf-19 (with core 2 duo) How hard can it be !
08:44 AM JT-Shop: hendrik_cnc: http://linuxcnc.org/docs/2.7/html/config/ini-config.html#_display_section
08:44 AM hendrik_cnc: thanks!
08:44 AM * JT-Shop goes back to splitting firewood
09:11 AM Loetmichel: miss0r: we have one here... but that would be a bit far i think ;)
09:11 AM Loetmichel: also: i dont recommend them... get a thinkpad made by IBM... cheaper, more powerful and a lot less destructible ;)
09:29 AM IchGucksLive: hi
09:29 AM IchGucksLive: Loetmichel, weist du wie die adapter für hdd festplatten heisen von den vieleln pins auf eine steckerleiste
09:30 AM IchGucksLive: Loetmichel, i got so many of this lifebooks now but the HDD dont fit as they need a adapter to the pc maybe the hdd frame has this but there is no frame inside
09:31 AM IchGucksLive: hendrik_cnc, online ?
09:33 AM IchGucksLive: hendrik_cnc, [RS274NGC] Section RS274NGC_STARTUP_CODE = G17 G21 G54 G40 G49 G64 P0.1 G80 G90 G92 G94 G97 G98 S9000 F250
09:36 AM hendrik_cnc: @IchGucksLive jepp
09:39 AM IchGucksLive: hendrik_cnc, arbeitest du mit meiner ngc
09:40 AM hendrik_cnc: ich bau sie grad ähnlich ja
10:05 AM Tecan: is there something inside steppers that click when you turn one powered off by hand ?
10:05 AM Tecan: you can feel each step somehow
10:06 AM gregcnc: you would normally feel the steps
10:06 AM gregcnc: mechanical noise could be indication of a problem
10:08 AM Tecan: the rotary encoder feel
10:09 AM hazzy-lab: Tecan: Is is called the detent torque. A stepper has permanent magnets so when you spin it you can feel the rotor poles going bast the field coils.
10:09 AM Tecan: can a stepper be used as a rotary encoder ?
10:10 AM hazzy-lab: Short the windings and then try spinning it :)
10:10 AM gregcnc: why not use a en encoder for that?
10:10 AM hazzy-lab: It can, but it is not very accurate, they do make good tachometers
10:13 AM pcw_home: they can make a fair MPG with a couple comparators but there is some lower threshold of speed where they will lose counts
10:15 AM pcw_home: There are some magnetically powered encoders that do work to zero speed (Using the Wiegand effect)
10:43 AM hazzy-lab: Really fastening: https://en.wikipedia.org/wiki/Wiegand_effect
10:47 AM skunkworks: I think pcw_home has unreal memory storage...
10:48 AM devlap: I have a feeling its going to be a good milling day!
10:51 AM skunkworks: every day is a good milling day...
10:51 AM gregcnc: i suppose it depends on the scrap/broken tools to good parts ratio
10:51 AM SpeedEvil: Unless you have to use your AK.
10:52 AM SpeedEvil: 'just need to move this over a little, so I'll double tap it'
11:00 AM jesseg: Tecan, I used most of a stepper to make an encoder -- but I took out the windings and put in two hall effect sensors to produce a quad signal :P
11:04 AM devlap: Any day I get to use the tree mill is a good day.
11:05 AM jesseg: And is that one of those good days? :D
11:05 AM station: can sombody help? dose GRBL or Marlin,… contain V Plotter / hang printer calculations, can I use it to make an Maslow CNC?
11:05 AM devlap: Today is the day I get to see if I get a useful product out of my lowely cnc scrapbeast.
11:05 AM jesseg: devlap, wonderful!
11:05 AM devlap: I have high hopes.
11:06 AM devlap: Autoleveller responded.
11:06 AM devlap: Their freeze is a corner case of not putting a negative z into the gcode. They assume any negative z move is a cut.
11:16 AM skunkworks: station: all I got from your sentence was 'cnc'
11:21 AM devlap: You know those machines where they pull strings on a wall to move a head vertically?
11:22 AM devlap: this isnt the grbl or marlin channel though :)
11:23 AM devlap: linuxcnc could control it, I'm not sure what would make the gcode for it.
11:26 AM MarcelineVQ: would the gcode need to be any different? it's just a router, someone just turned it on its side
11:27 AM devlap: Not really
11:27 AM devlap: It uses combined axis moves to move linearly.
11:28 AM MarcelineVQ: yeah but that's an issue for the control right, not the codes? there's an example of the kinematics for that application in the docs.
11:29 AM devlap: I don't know where its normally handled. Either side can compensate for it.
11:30 AM hazzy-lab: station: I think GRBL can do it (IIRC somebody has), marlin is a little less flexible since it is really optimized for 3D printing
11:31 AM station: ok
11:32 AM hazzy-lab: station: https://github.com/MaslowCNC/Firmware/issues/122#issuecomment-290970239
11:32 AM hendrik_cnc: juhu nearly done
11:32 AM hendrik_cnc: https://photos.app.goo.gl/17dZsMVgYYfSrWrp1
11:33 AM devlap: yea there is a bipod kinematics config sweet
11:38 AM station: Y I alsow hawe a problem with Maslow I cant understand his choice of cheausing DCMotor + encoder and Metal gears? in stead of usual standard nema with beltreduction https://ae01.alicdn.com/kf/HTB1JNtYdXmWBuNjSspdq6zugXXad/SUMRAY-HTD5M-Timing-Pulley-Belt-Kit-Reduction-1-2-5M-15T-30T-Pulley-Wheel-Engraving-Machine.jpg_640x640.jpg
11:40 AM station: what am I missing on those short lived gears that cheap belts cant replace
11:40 AM fragalot: hello
11:41 AM station: my concept still implies like maslow to his chains just stepper M and belts reduction for axis
11:45 AM gloops: ill have a look station
11:46 AM gloops: which maslow machine are we talking about here?
11:48 AM gloops: what i want to know is - whats the need to reduce, torque? resolution?
11:48 AM Rab: station, without knowning much about the Maslow CNC, it's possible the gearmotors were chosen for a couple of reasons: high torque with a smaller motor, and self-braking so the router doesn't fall when the motors are de-energized.
11:49 AM gregcnc: http://www.maslowcnc.com/
11:49 AM gloops: for rotary axis planetary gearboxes and the like are use to increase resolution and holding torque, often 50-1 or more
11:50 AM Rab: Ordinarily, geared reduction is unacceptable for machine tool motion control because of the backlash inherent in the gear train. But with the Maslow design, gravity always loads the gears in one direction. (And it doesn't look like a super precise thing anyway.)
11:51 AM gloops: till it hits a knot Rab lol
11:52 AM fragalot: gloops: the maslow was obviously designed for high end stuff
11:52 AM fragalot: so the wood won't have knots in it anyway
11:53 AM Rab: Yeah, I wonder about that. I guess those brick(!) counterweights are to keep the router from flinging itself around.
11:53 AM gloops: well they work, been going a while, dont see many made though?
11:53 AM gloops: the conventional router made with plywood is more popular
11:53 AM fragalot: Rab: last thing I heard the bricks weren't even needed with certain routers
11:54 AM Rab: "291:1 reduction gearbox with worm gear to prevent back driving motor, 30kg/cm torque, 20 rpm, 12 volts"
11:54 AM gloops: i dont think using timing belts would be an issues, ive only got 15mm belts on mine and they dont cause i problem
11:54 AM gloops: i will be changing to 30mm belts though
11:55 AM gloops: you need good sprockets and chain
11:58 AM gloops: i have used chain, tbh it was an awesome machine i loved it, so did the mrs, looked crazy, was very fast, sounded incredible
11:58 AM Rab: Looks like the gearmotors are ultra-cheap chinese GW31ZY (20-30USD) or maybe GW370 (10USD). So there's your answer...those motors are cheaper than decent steppers by themselves, never mind a reduction drivetrain.
11:58 AM gloops: but at the end of day it was just too much trouble and not that good accuracy wise
11:58 AM gloops: you spend more time faffing about with the chains than cutting
11:59 AM Beachbumpete1: Woah that thing is next gen ;)
11:59 AM gloops: Rab .2mm backlash
12:00 PM gloops: the negligible backlash gearboxes are pretty expensive
12:00 PM Rab: station, so there's no reason at all you can't upgrade the concept with better components. Except that the worm drive has intrinsic locking when the motors aren't energized.
12:03 PM gregcnc: for what they were doing it was deisgned well
12:05 PM gloops: the verticalness is an advantage
12:05 PM gloops: or verticality whichever it may be
12:06 PM gloops: perpendicularity
12:08 PM gloops: everybody makes a table, a router made vertical would be a lot better - far less space required, can easily get to all parts of cutting area etc
12:09 PM fragalot: table is easier to set up thoguh
12:09 PM fragalot: which do you prefer using
12:09 PM fragalot: a vertical panel saw
12:09 PM fragalot: or a horizontal sled panel saw
12:09 PM gloops: you arent actually operating anything though
12:10 PM gloops: throw your plywood sheet on, clamp or whatever, run, sit down
12:10 PM fragalot: that's assuming you only run full sheets
12:10 PM gloops: 8x4 table - you cant get to the middle to look at something or clamp something
12:11 PM Rab: The Maslow design is good for full-size sheets. If you want to cut a smaller workpiece, it gets messy...you need a carrier sheet, a frame so the router won't fall off the workpiece, etc.
12:11 PM gloops: just walk up and down it if its vertical
12:12 PM gloops: yes that is another problem Rab - router rides on the job
12:13 PM gregcnc: just mount your table router to teh wall
12:14 PM gloops: i wish i had now
12:18 PM Rab: I've seen configurations with X axis horizontal, Y axis up the wall. But it puts a greatly increased load on the Y axis.
12:19 PM gloops: well, if X is the long axis, have the X rails horizontal, nothing changes there
12:19 PM gloops: the Y or gantry axis takes more load going up, but not much more than the Z would anyway
12:19 PM Rab: Z axis can be made faster and lighter...might be good for heavy contouring.
12:19 PM gloops: its only another plate
12:20 PM gloops: z axis normally lifts 1 plate and spindle anyway
12:21 PM gloops: another plate, screw, bearings and motor
12:21 PM gloops: you could fit 2 8x4s in the space 1 flat one takes up
12:29 PM Rab: Considering the many amazing plywood chairs created during various design movements of the 20th century, and their painstaking creators who might have killed for numeric router control...how can Maslow proudly present these sorry efforts? https://static1.squarespace.com/static/57e561e720099e0d7a7f6aca/58069c2603596ed3a86568e7/5a0f240a71c10bcd4301dd16/1515109219860/IMG_20171108_143358351_HDR.jpg
12:30 PM fragalot: hahahah those are absolutely awful
12:30 PM fragalot: not necessarily the routers' fault, but christ
12:31 PM gloops: not quite mastered the shabby chic paint effect
12:34 PM fragalot: gloops: if you want cheap brushless servo's, here is a nice example: https://www.youtube.com/watch?v=0BoPoWF_FwY
12:34 PM fragalot: 10:50-ish
12:34 PM fragalot: 2kW
12:35 PM gregcnc: drivers?
12:35 PM fragalot: Odrive
12:35 PM fragalot: https://odriverobotics.com/
12:35 PM fragalot: hobby grade, but neat nonetheless
12:37 PM gloops: only thing i dont like about steppers is the noise, its the only noise my router makes
12:39 PM gloops: or the only annoying noise
12:41 PM IchGucksLive: hi all
12:41 PM devlap: hey IchGucksLive
12:43 PM IchGucksLive: hi
12:43 PM IchGucksLive: devlap, how is your tb6560 performing
12:43 PM devlap: about to do a run today.
12:43 PM devlap: Just got everything working. had to replace the bob.
12:44 PM devlap: Z wasn't generating output if you recall.
12:44 PM devlap: Now Z is good, spindle good, got a job loaded just waiting for a quiet moment to run it.
12:44 PM IchGucksLive: oh sory im wroing you are the 0-10V men
12:44 PM devlap: I got upgraded controllers too :)
12:44 PM devlap: X Y where good, Z and A where fried maybe.
12:45 PM devlap: Idk, I got new ones anyways.
12:45 PM IchGucksLive: the tb6600 insted of the chiineese ....
12:45 PM devlap: I figure I have 2, maybe 3 controllers for another build later :)
12:45 PM IchGucksLive: so you are a real good low cost setup
12:45 PM devlap: Yea I got the P5B as well.
12:46 PM IchGucksLive: devlap, for a REAL mashine go for the dm566
12:46 PM devlap: its around 5-7.5k latency. I set it to 10k for good measure.
12:46 PM phipli: evening
12:46 PM IchGucksLive: this will give you speed if mechanics is ok
12:47 PM IchGucksLive: devlap, the stepeprs will top at around 200rpm
12:47 PM IchGucksLive: therefor the next step is the hss86 servos
12:47 PM IchGucksLive: it is not that much on money but the electronics blow up
12:48 PM IchGucksLive: on the 8Nm you need 1 psu for one axis
12:48 PM rmu: gloops: use trinamic drivers, then steppers are silent
12:48 PM fragalot: +1 on trinamic :P
12:49 PM fragalot: not cheap, but smooooth
12:50 PM IchGucksLive: the DM is also silent
12:50 PM IchGucksLive: i do not hear somthing at all
12:50 PM IchGucksLive: got now setup a full mashine
12:50 PM rmu: that's another project to try sometime: directly connect the trinamics to the raspi via SPI, i think they have basic motion generator built in
12:56 PM IchGucksLive: Gn8
12:57 PM rmu: fragalot: there is a st microelectronics stepper driver "PowerStep01", one package, i think some kind of hybrid/multi chip module, that can drive steppers with up to 90V and 10A
12:58 PM devlap: How do I manually set a Home. Like I know I can set 0. How can I set the current z position to an arbitrary number
12:58 PM devlap: I just air cut.
12:59 PM fragalot: rmu: sure, chips are plentiful, but far beyond the reach of non electronics hobbyists
12:59 PM rmu: fragalot: about €10 per piece in "O(1)" quantity
12:59 PM rmu: they have an eval board for nucleos that would also fit on arduino headers
12:59 PM rmu: also quite cheap
12:59 PM fragalot: Aye
01:00 PM fragalot: they give those nucleos practically for free if you ask
01:03 PM miss0r: fragalot: behold!: https://imgur.com/a/PxCUTvv
01:04 PM fragalot: miss0r: you should be ashamed of yourself. *points at that dinky limit switch*
01:05 PM miss0r: Whats wrong with that?!.. I'll make a nice cover for it at some point :]
01:05 PM fragalot: :P
01:05 PM miss0r: Still not sure I will add that to the code...
01:05 PM rmu: miss0r: is this some kind of tap remover?
01:05 PM miss0r: but I guess it beats forgetting about it, and trying to pick up all the small balls from the nut in the dark cutting water :D
01:06 PM miss0r: rmu: it is going to be :)
01:06 PM fragalot: miss0r: :P
01:06 PM miss0r: Are you getting closer to a flat on your test piece?
01:06 PM fragalot: miss0r: given how small the stepper is you could probably also just put a mechanical stop there
01:06 PM fragalot: well, no.
01:07 PM fragalot: but I should get some canode & new hispot blue in either tomorrow or the day after
01:07 PM miss0r: nice
01:07 PM miss0r: also.. A mechanical stop on that axis will wreck the machine. That stepper is realy powerfull.. and with a ballscrew.. eh
01:08 PM fragalot: ah. didn't think the stepper had any grunt behind it
01:08 PM miss0r: yeah. its geared like theres no tomorrow
02:01 PM gloops: England the only side in the World Cup to have their entire squad playing in own domestic league
02:01 PM gloops: Belgium only has one player at home
02:12 PM Tom_L: miss0r, what size stepper?
02:15 PM miss0r: 28BYJ-48
02:16 PM miss0r: On a mm pitched ballscrew
02:16 PM miss0r: 2mm*
02:19 PM miss0r: Tom_L: ^
02:33 PM CaptHindsight: I want to make plywood chairs with a hatchet wielding robot arm
02:35 PM CaptHindsight: a true hack
02:36 PM Rab: Why intermediate plywood? Just start with a tree stump!
02:36 PM fragalot_: why wait for the tree stump
02:36 PM fragalot_: make the robot weave the chair out of the tree as it grows from a sapling
02:37 PM Rab: Hmm, CNC bonsai
02:39 PM gloops: i bet there isnt a cad/cam software for invisible kerf slitting for any shape
02:39 PM fragalot_: what's invisible kerf slitting?
02:39 PM fragalot_: following an existing contour to hide the kerf, or?
02:39 PM gloops: well, if you slice part through the plywood you can bend it
02:40 PM fragalot_: ah
02:40 PM fragalot_: lots of weird things exist out there
02:40 PM gloops: if its done exact the slits will meet up - so no ugly gaps
02:40 PM gloops: in theory i guess a cnc could do it in all directions, so you could have a plywood dome
02:41 PM gloops: or even sphere
02:41 PM fragalot_: you may run into issues with the fibres not compressing properly when making a dome
02:41 PM fragalot_: much harder than a simple bend
02:41 PM gloops: runs both ways in plywood though
02:42 PM CaptHindsight: growing it is not a craft duh
02:42 PM fragalot_: CaptHindsight: say that to r/trees
02:43 PM gloops: some of the old wood men used to twist saplings round one another for walking sticks
02:43 PM CaptHindsight: I tell it to any plant not just trees!
02:44 PM gloops: http://4.bp.blogspot.com/--mLZxbO1J74/UZpSITsEuqI/AAAAAAAAEJE/9nMwci64WKg/s1600/living+garden+chair+using+tree+shaping+methods.jpg
02:44 PM gloops: that would be about £16000 at the local garden centre
02:46 PM gloops: http://cdn3-www.webecoist.momtastic.com/assets/uploads/2009/06/furniture3.jpg
02:46 PM gloops: thats a bit toooo crafty..
02:50 PM devlap: linuxcnc is saying linear move on joint 0 would exceed negative limit.
02:50 PM devlap: I disagree, I think it fits.
02:51 PM gloops: look again devlap
02:53 PM CaptHindsight: how to resolve this conflict peacefully?
02:54 PM JT-Shop: devlap: linuxcnc does not lie about things like that
02:54 PM CaptHindsight: can we use Schrodinger to solve for thos?
02:54 PM CaptHindsight: thos/this
02:54 PM devlap: All the moves in the gcode are within bounds. It thinks something in the file is at -250mm
02:58 PM gloops: its more likely to be your eyes upside down devlap
02:58 PM devlap: Gcode had G20 for some reason
02:59 PM devlap: shoulda been G21
02:59 PM devlap: Autoleveller is set to be in mm so idk why it put G90 G20
03:00 PM CaptHindsight: well all those codes start with G
03:00 PM CaptHindsight: and there's like 100 of them
03:03 PM CaptHindsight: it's another reason that GRBL was invented
03:03 PM CaptHindsight: too many G-codes, it just gets confusing
03:08 PM will_handle: hellp
03:08 PM will_handle: hello
03:09 PM gloops: evening
03:09 PM unterhausen: you could have a robot that moved around and bent up a whole grove of saplings into chairs
03:09 PM will_handle: what files (.ini and .hal ?????) are needed to get linuxcnc back after disk crash
03:10 PM gloops: unterhausen in celtic knots?
03:10 PM unterhausen: whatever style you can write gcode for
03:10 PM CaptHindsight: will_handle: are those the only two config files that your crashed system used for LCNC?
03:10 PM will_handle: I gues
03:10 PM unterhausen: did the crash happen in hindsight, or are we planning on future crashes
03:11 PM CaptHindsight: will_handle: did you set up LCNC yourself or?
03:11 PM will_handle: myself
03:11 PM gloops: but all the little tweaks and scales and such were in the old ini and hal files
03:12 PM CaptHindsight: will_handle: no way or really knowing if you don't have a backup or you don't remember, but we can still help
03:12 PM will_handle: I have the backed up file from a working configuration
03:12 PM CaptHindsight: or/of
03:13 PM will_handle: justed dropped them into a new installation, checked the estop first; no response
03:13 PM gloops: try running stepconfig to make a new config, replace ini and hal and maybe custom hal
03:13 PM CaptHindsight: .ini and .hal for sure
03:13 PM will_handle: cant run step config because of twin step config on y-axis
03:13 PM unterhausen: will_handle: new installation is a different version than old?
03:14 PM CaptHindsight: those files will expect the names of other files to be the same and in the same places
03:14 PM will_handle: put them there; nothing happens correctly; no ESTOP sction
03:14 PM unterhausen: did you get any any error messages?
03:15 PM will_handle: No ESTOP action
03:15 PM will_handle: screen; no
03:16 PM will_handle: wonder now if paraport no has changed since i removed video card
03:16 PM unterhausen: I assume there are error messages in logs
03:16 PM will_handle: specifically what log
03:16 PM will_handle: syslog
03:17 PM will_handle: linuxcnc log
03:17 PM will_handle: xlog
03:18 PM CaptHindsight: is the machine name the same?
03:19 PM will_handle: yep
03:19 PM CaptHindsight: are you installing the same version of Linuxcnc as before?
03:19 PM CaptHindsight: and to the same directory location?
03:20 PM will_handle: everything is exact except for video card which was introducing latency-burp i think
03:20 PM CaptHindsight: same #INCLUDE filenames?
03:20 PM will_handle: what includes
03:23 PM CaptHindsight: http://linuxcnc.org/docs/html/config/ini-config.html#_include_files
03:23 PM CaptHindsight: if you had them
03:23 PM CaptHindsight: I've copied configs from one install to another and have had similar issues
03:24 PM will_handle: let me check my ini file....
03:25 PM CaptHindsight: posting both .ini and .hal might help to some pastebin might also help those trying to help
03:25 PM CaptHindsight: however I am leaving
03:25 PM CaptHindsight: bbl
03:34 PM gloops: you know you might have latency problems will handle here
03:34 PM will_handle: hello
03:35 PM will_handle: gloops; is this hrbk
03:36 PM gloops: no
03:37 PM will_handle: where is the paraport defined in lcnc
03:38 PM gloops: http://www.linuxcnc.org/docs/2.7/html/man/man1/hal_parport.1.html#SYNOPSIS
03:40 PM will_handle: the hal
03:44 PM gloops: are you using 2.8 will_handle?
03:44 PM will_handle: 2.8 what
03:44 PM gloops: linuxcnc 2.8 master
03:45 PM will_handle: 2.7.13ver
03:46 PM gloops: how are you doing the 2 motor axis?
03:46 PM will_handle: para port is not an address but an index in my hal: '0' ie. first parallel port
03:47 PM will_handle: just mapping the axis to both sets of io pins
03:48 PM will_handle: et xstep => parport.0.pin-02-out setp parport.0.pin-02-out-reset 1 net xdir => parport.0.pin-03-out net ystep => parport.0.pin-04-out setp parport.0.pin-04-out-reset 1 net ydir => parport.0.pin-05-out net zstep => parport.0.pin-06-out setp parport.0.pin-06-out-reset 1 net zdir => parport.0.pin-07-out net ystep => parport.0.pin-08-out setp parport.0.pin-08
03:49 PM gloops: just wiring both drivers to same pins
03:51 PM will_handle: no look at parport pin3 out is ystep, pin7 out is the same logical state
03:52 PM andypugh: It’s not so clear to read wrapped like that..
03:52 PM will_handle: seperate parapins, separate, amp, and separate steppers
03:53 PM gloops: i see
03:54 PM will_handle: wrapped like that.. for sure
03:57 PM will_handle: thanks gloops gotta reboot after reinstalling video card; see if that might move interrupt allocation
03:58 PM gloops: ok, im a bit distracted anyway
04:45 PM Deejay: gn8
04:50 PM devlap: always remember to put m0 between probe code and job start code :)
04:51 PM andypugh: My probe is a tool, so a tool-change has the desired effect.
04:55 PM JT-Shop: is there a way to get the current machine position of an axis in G code?
05:10 PM JT-Shop: got it sorted out I think
05:30 PM devlap: I think my X and Y axis have different steps per mm
05:42 PM devlap: 31$ for a 0.004 endmill
05:42 PM devlap: How many am I going to snap.
05:43 PM Rab: How long is the end mill?
05:44 PM devlap: 1-1/2 inches, the LOC is 0.012"
05:45 PM devlap: its just so small.
05:45 PM Rab: What is your spindle like? Have you measured it for TIR?
05:45 PM devlap: I'm going to get one to test. I know well enough to get two but idk. Only getting one.
05:46 PM devlap: its nuts on. lower than I can measure.
05:47 PM devlap: < 2 though.
05:47 PM devlap: thou*
05:47 PM will_handle: sliptonic there
05:49 PM will_handle: any installation/config debug help out there
05:59 PM devlap: with shipping prices 33% of a single bit I decided to get two.
06:01 PM gregcnc: ideally TIR for something that small would be less than .0005"
06:06 PM devlap: I'm not able to measure that accurate. What I'm seeing from as far as I can see is that it's good enough for what I'm trying to do.
06:07 PM devlap: I'm working with v bits right now and not able to compensate for the angle vs depth very well.
06:07 PM devlap: I have a slight issue with my Y axis.
06:08 PM gregcnc: breaking endmills will be an expensive way to find out you have excessive runout
06:08 PM gregcnc: you might get away with it. I don't run stuff like that
06:10 PM devlap: 30$ is cheaper than me measuring the TIR with tools I'd have to get costing greater than 30.
06:10 PM gregcnc: indicator will measure and still be an indicator. endmill will break and you have scrap
06:12 PM gregcnc: what kind of spindle is it?
06:15 PM devlap: My best indicator says its within 0.0005"
06:16 PM devlap: GDZ-80-1
07:05 PM devlap: So I moved my stepper one revolution by hand. it moved 5mm. I did it under cnc control. the machine moved less than 5mm, but the wheel moved a full revolution.
07:08 PM devlap: thats a fun one.
07:10 PM jesseg: Is the motor-to-screw couple slipping under the high acceleration of the stepper?
07:11 PM jesseg: or did the screw itself turn a full turn under motor control?
07:11 PM jesseg: maybe you have end play, or there is some other assumption in your observation
07:11 PM jesseg: :D
07:14 PM devlap: So I put a plunger indicator on the axis.
07:14 PM devlap: And I put tape on the steppers wheel just out of the housing.
07:15 PM devlap: The wheel with tape spins, at some point in the travel, the plunger stops moving, but the tape still spins a full rotation every time.
07:15 PM devlap: not sure why it works by hand
07:17 PM jesseg: is it a belt or a screw?
07:17 PM devlap: screw
07:18 PM Rab: Was the machine moving the same direction both times?
07:18 PM jesseg: well something goofy is happening. Make sure the screw to motor coupler absolutely is not slipping, and make sure the screw's nut is not slipping by either turning or sliding in its holder
07:18 PM jesseg: mark up stuff with a magic marker, see if the marks stay aligned maybe
07:20 PM devlap: I moved it forward 1 rev, then back 1 rev by hand, and then i did it under control
07:20 PM devlap: its too much to be backlash
07:38 PM devlap: alright was the coupler
07:38 PM devlap: Tightened it down good.
07:38 PM devlap: Its nuts on now.
08:08 PM Tom_L: are there BLDC servo/drives that run off house current?
08:08 PM Tom_L: 700-1000w or so
08:16 PM Tom_L: https://www.aliexpress.com/item/BLDC-Motor-Driver-110V-220VAC-1000W-Brushless-DC-Motor-Driver-Controller-WS-2209/32793743334.html
08:16 PM Tom_L: i wonder if that is any good
08:18 PM Tom_L: mmm 0-5v control
08:19 PM Tom_L: wait.. won't the 7i47s do that? i've got mine set for 0-10v but i think it would do 0-5v as well
08:29 PM Tom_L: https://www.aliexpress.com/item/3phase-220V-1800w-1-8kw-6N-m-3000rpm-110mm-AC-servo-motor-drive-kit-2500ppr-with/32815515067.html?spm=2114.10010108.1000015.6.47ab6ca7otdIvO&s=p
08:29 PM Tom_L: too bad that one's 3 phase
08:48 PM Tom_L: https://www.aliexpress.com/item/80mm-220v-750w-2-39NM-3000rpm-17bit-ASD-B2-0721-B-ECMA-C20807RS-Delta-AC-servo/32326080829.html?spm=2114.10010108.1000013.2.55aa6dd28o07V2&scm=1007.13339.99734.0&scm_id=1007.13339.99734.0&scm-url=1007.13339.99734.0&pvid=89957fa5-0471-459d-8d10-62861c3a40d9&_t=pvid:89957fa5-0471-459d-8d10-62861c3a40d9,scm-url:1007.13339.99734.0
08:48 PM Tom_L: possible candidate
08:49 PM Tom_L: 0 - 10 VDC ... does that mean 0-10v or -10 - +10 ?
08:49 PM Tom_L: or both
09:09 PM MarcelineVQ: reads like they're saying a voltage potential of 10, -10 to 0 or 0 to +10. -10 to +10 would be a potential of 20
09:09 PM Tom_L: https://www.aliexpress.com/item/AC-Servo-Drive-Motor-750W-2-39NM-220V-3000R-Min-NEMA32-Material-Conveying-New-1/32721780790.html?spm=2114.10010108.1000014.1.4c117f35KPo2Ss&scm=1007.13338.98644.000000000000000&scm_id=1007.13338.98644.000000000000000&scm-url=1007.13338.98644.000000000000000&pvid=db21c0ce-c611-42b7-97e8-a229b13349d7&_t=pvid:db21c0ce-c611-42b7-97e8-a229b13349d7,scm-url:1007.13338.98644.000000000000000
09:10 PM Tom_L: wonder what the difference is..
09:11 PM gregcnc: I think Delta is a real company with real support, though you'd want to verify they are authentic.
09:12 PM Tom_L: there's a Delta Electric company here but i doubt it's the same one
09:12 PM Tom_L: doesn't look like the 2nd one has analog input
09:12 PM gregcnc: http://www.deltaww.com/Products/CategoryListT1.aspx?CID=060201&PID=ALL&hl=en-US
09:15 PM Tom_L: cable's kinda short on the 2nd one
09:19 PM Tom_L: would those do ok for a spindle motor?
09:19 PM Tom_L: i don't want one of those high speed spindles
09:19 PM Tom_L: 4-5k rpm with torque would be nice
09:19 PM gregcnc: If the RPM and HP works for you.
09:20 PM Tom_L: it's to replace a sherline stock motor so it probably doubles the power
09:20 PM Tom_L: other than the motor getting pretty hot, it works pretty good as it is
09:21 PM Tom_L: just want something a little beefier
09:21 PM gregcnc: it has a very high resolution encoder so you may check how it would integrate
09:21 PM Tom_L: i saw that
09:21 PM Tom_L: i think it could work closed loop
09:21 PM Tom_L: so it wouldn't affect lcnc
09:22 PM Tom_L: well, lcnc would need to have _some_ feedback for the PID
09:25 PM Tom_L: 160k ppr
11:40 PM nallar is now known as Ross