#linuxcnc Logs

Oct 28 2020

#linuxcnc Calendar

01:56 AM Deejay: moin
04:56 AM JT-Cave: morning
04:56 AM XXCoder: yo
05:09 AM _unreal_: if you guys know of one I'm looking for a motor controller that is a double motor controller. much like the one's I have currently form factor wise just dual
05:42 AM Tom_L: morning
05:50 AM XXCoder: ught
05:52 AM Tom_L: _unreal_, 4 axis: https://www.geckodrive.com/g540-4-axis-digital-stepper-drive.html
05:58 AM Tom_L: the rest i see are for toys
07:50 AM Loetmichel: uhoh... TNT pickup for a device: 1h 38min from now. ETE for the corners of that device on the 3d-printer: 1h 26min... THATs cutting it close... :)
07:52 AM Loetmichel: ... sometimes i hate my bosses "delivery date planning"m :(
08:34 AM Tom_L: keeps ya on your toes
08:40 AM unterhaus: what's the metric equivalent of a 4-40 machine screw?
08:40 AM unterhaus: 2mm?
08:40 AM Tom_L: probably
08:40 AM gregcnc: no
08:41 AM gregcnc: .112"*25.4=????
08:42 AM unterhaus: I think it's 3mm
08:42 AM Tom_L: M2.5
08:42 AM Tom_L: would be closest
08:43 AM Tom_L: judging from the drill used
08:43 AM unterhaus: in this case, I dropped the metric screw and a 4-40 almost fit
08:43 AM Tom_L: pitch isn't the same
08:43 AM unterhaus: so it must be 3mm, which has .118" major diameter
08:43 AM Tom_L: so you'll almost strip the threads :)
08:44 AM unterhaus: I didn't force it, not a barbarian
08:44 AM unterhaus: If I had forced it, it would be 4-40 now
08:44 AM Tom_L: listen man.... it WILL FIT!!!!
08:44 AM unterhaus: it's probably under the tablesaw
09:15 AM jymmmm: Morning
09:26 AM Loetmichel: unterhaus: close to2,8 IIRC
09:26 AM Loetmichel: i would use an M3 screw, it fits in most 4-40 holes
09:26 AM jymmmm: CaptHindsight: nice find
09:27 AM jymmmm: Hi Loetmichel
09:28 AM Loetmichel: *GAAAH* somtimes i am dumber than naturally possible... lust lifted an 80 pack of 400mm*600mm*0.3mm Brass foil... then one slid off... thru my palm... *and another 2 bandaids* DUUMB...:(
09:33 AM * jymmmm hands Loetmichel a 100 pack of gloves
09:36 AM gregcnc: his boss won't buy them and he wouldn't use them anyhow
09:38 AM Loetmichel: i HAVE some kevlar gloves here... just forgot to wear them
09:38 AM gregcnc: it's the thought that counts
09:38 AM Loetmichel: "just put the brass from there to there... whats the worst that can happen?" you know?
09:39 AM jymmmm: gregcnc: Maybe we can epoxy the kevlar gloves on him?
09:39 AM gregcnc: exactly "what's the worst that can happen" should be driving your choices
09:39 AM Loetmichel: its even worse... told the new temp: "WEAR the yellow gloves when you handle that foil, those cuts are nasty!"... and half a day later... *ziiip
09:40 AM gregcnc: do as I say not as i do
09:40 AM Loetmichel: indeed
09:47 AM serp: you did it as an example to the new temp
09:48 AM Loetmichel: THATS it ;)
09:48 AM Loetmichel: "See, THAT happens if you dont wear those gloves!"
09:48 AM Loetmichel: *drip*
09:48 AM Loetmichel: :)
09:50 AM jymmmm: ... and finger flopping around on the floor
09:58 AM Loetmichel: nah, just a few minor cuts
09:58 AM Loetmichel: can still type ;)
10:36 AM Rab: 10:20 <CaptHindsight> https://deepnest.io/
10:36 AM Rab: 10:21 <CaptHindsight> Open source nesting software
10:36 AM Rab: Far lower poultry relevance than I was expecting from this channel.
11:03 AM roycroft: hello, folks
11:03 AM roycroft: i'm working on designing my control panel user interface, and real estate is definitely at a premium there
11:04 AM roycroft: so this is what i'm wondering today:
11:04 AM roycroft: with a stepper motor setup, is it even useful to try to mintor current draw by the individual stepper motors? and if so, can that be done using hal?
11:04 AM roycroft: i see a lot of control panels with ammeters for the motors
11:05 AM roycroft: they take up a lot of space
11:05 AM roycroft: monitor, not mintor, of course
11:06 AM roycroft: i'm not at the point of counting signal pins yet - i hope i don't end up running out of them because i'm trying to save space on the physical control panel
11:07 AM Tom_L: typically industrial cnc machines will have a load meter on the spindle and not the axis
11:07 AM roycroft: but i think that's an easier issue to deal with than the control panel
11:07 AM roycroft: ok, so when i see folks with a meter on each axis it's probably just bling :)
11:07 AM roycroft: i can see monitoring current on the power supply itself
11:08 AM Tom_L: i don't really see the point
11:08 AM roycroft: i.e. aggregate current being used to drive the motors
11:08 AM Tom_L: other than more stuff to distract
11:08 AM roycroft: just so i know i'm not approaching or exceeding its limits
11:08 AM roycroft: but that's probably a design thing - i'd just need to check while building the machine
11:08 AM roycroft: and not monitor once it's in production
11:08 AM Tom_L: your geckos have current limit on them
11:08 AM roycroft: because it should not change
11:08 AM Tom_L: don't worry about it
11:08 AM roycroft: yes
11:09 AM roycroft: i'd like to not worry about it, so i'll heed your advice
11:09 AM roycroft: that will save some space
11:09 AM Tom_L: now if i were _unreal_ i'd worry
11:09 AM roycroft: he has wild wild west drivers
11:09 AM roycroft: i have civilised, bostonian drivers
11:09 AM Tom_L: s/west/east
11:10 AM roycroft: ok
11:10 AM roycroft: he has florida man drivers
11:10 AM roycroft: there
11:10 AM Tom_L: i'd heat sink them though
11:10 AM roycroft: of course
11:10 AM Tom_L: at least i did and i'm not even running them hard
11:11 AM Tom_L: mine are 7A drivers and i think i'm running them at 3A
11:11 AM roycroft: when i started laying out the control panel last night i foudn that after the keyboard and display there wasn't a lot of room left over
11:11 AM Tom_L: the motors are good for 5A
11:12 AM roycroft: and my jog wheel is going to take up a lot of space
11:12 AM roycroft: my motors are, iirc, rated at 4.7A
11:12 AM roycroft: and yes, the drivers are 7A
11:12 AM Tom_L: depending where your control is, i'd put the jog wheel on a pendant
11:12 AM roycroft: the power supply is only 10A though
11:12 AM Tom_L: it's alot handier there
11:12 AM roycroft: which is probably fine
11:12 AM roycroft: i'm not going to have a pendant on day one
11:12 AM roycroft: but i am going to add one
11:13 AM roycroft: and i'll get a smaller jog wheel for that
11:13 AM roycroft: the jog wheel i have is almost 4" in diameter
11:13 AM Tom_L: holy crap
11:13 AM roycroft: i think about half that size is more appropriate for a pendant
11:13 AM Tom_L: get one for $20 for the pendant
11:13 AM roycroft: i paid about that for mine
11:14 AM Tom_L: most machines i've seen don't even use a 4" wheel
11:15 AM roycroft: https://www.ebay.com/itm/372992858876
11:15 AM roycroft: that's what i have
11:15 AM roycroft: not that exact one
11:15 AM roycroft: but that model
11:16 AM roycroft: and i just realized it's 12v, so now i have to provide 12v as well as 5v and 24v
11:16 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/pendant/pendant1.jpg
11:17 AM Tom_L: or get a 5v one
11:17 AM roycroft: i think i'm going to get a multi-voltage power supply instead of a bunch of little single volt ones
11:17 AM Tom_L: probably cheaper just to do that
11:18 AM roycroft: do you think i'd be wise to make my pendant as part of the initial build?
11:18 AM Tom_L: i've got 48, 24, 10 & 5v
11:18 AM Tom_L: i would unless you wanna redo a bunch of stuff
11:19 AM roycroft: i was going to install a pendant interface in the control panel and then make the pendant later
11:20 AM Tom_L: 10v is for the analog spindle control
11:21 AM roycroft: i had picked out a pendant enclosure a long time ago
11:23 AM roycroft: http://hammondmfg.com/1553T.htm
11:23 AM roycroft: i think that would work nicely
11:24 AM roycroft: and it costs <$20, so pretty affordable
11:24 AM Tom_L: if it's deep enough
11:24 AM Tom_L: they're pretty good about samples too btw
11:24 AM roycroft: yeah, i'd have to check the clearance of the rotary switches and the pendant that i get for it
11:24 AM Tom_L: they sent me several when i was doing my programmers
11:24 AM roycroft: nice
11:25 AM roycroft: i could always 3d print one
11:25 AM roycroft: but then i'd have a 3d printed pendant
11:25 AM roycroft: so maybe not :)
11:25 AM Tom_L: rue that comes here sometimes did
11:25 AM Tom_L: maybe he'd share his
11:26 AM Tom_L: peter makes a pendant board too ya know
11:26 AM roycroft: so on yours, you have a "tool" button
11:26 AM Tom_L: i haven't tried it
11:26 AM roycroft: is that just to pause and tell linuxcnc that you're doing a tool change?
11:27 AM Tom_L: no that does the tool change on a manual tool change and resumes the program
11:27 AM Tom_L: i have a separate pause button
11:27 AM roycroft: i got a 7i73 for the pendant
11:27 AM roycroft: ok
11:27 AM roycroft: so your program pauses when it's time for a tool change
11:27 AM Tom_L: mine just runs into gpio on the 7i90
11:27 AM roycroft: and after you do the tool change that button is to tell it to resume
11:27 AM Tom_L: yes
11:28 AM roycroft: i'd probably have a better sense of what kind of controls/indicators i want/need if i had actual experience doing cnc machining
11:28 AM Tom_L: mine are the basics
11:28 AM Tom_L: no frills but does everything i need
11:28 AM roycroft: i'm going to build the control panel modularly
11:29 AM gregcnc: there is no need to monitor current of a stepper
11:29 AM roycroft: so if i want to make changes in the future i don't have to redo the whole thing
11:29 AM roycroft: i figure if i start out fairly basic, over time i'll figure out what else i might find useful
11:29 AM Tom_L: the button above 'pause' is 'program start'
11:29 AM Tom_L: to start the beginning of a program
11:30 AM roycroft: and "spindle" is to turn the spindle on or off, i presume
11:30 AM Tom_L: i was experimenting with engraving on that and some weren't quite deep enough
11:30 AM Tom_L: yes
11:30 AM roycroft: i'll have no spindle control on day one
11:30 AM roycroft: but i'll add it later
11:30 AM roycroft: i'm not sure what i'm going to do for spindle control
11:31 AM Tom_L: so once the S word is set, you can turn it on and off with that button in MDI etc
11:31 AM Tom_L: nice for squaring stock
11:31 AM roycroft: i can either try to interface with the motor controller built into the machine, or replace the motor and use a vfd
11:31 AM roycroft: but i'm going to defer that decision and do manual spindle control on day one
11:31 AM Tom_L: i'm going with a vfd if it ever arrives
11:32 AM Tom_L: but i made sure it had 0-10v analog control
11:32 AM roycroft: my machine has a variable speed motor
11:32 AM Tom_L: so i won't have to change anything else
11:32 AM roycroft: if i can figure out how to interface with its controller i'll probably just keep the stock motor
11:33 AM roycroft: but i don't need to do any of that immediately
11:33 AM Tom_L: i went thru several hoops to get the sherline control to work like i wanted
11:33 AM Tom_L: it didn't have reverse but i got that working as well
11:33 AM Tom_L: added a relay with a delay for switching at zero current
11:36 AM roycroft: i suppose that if i make a mount for the pendant, so it can sit next to the keyboard, then i would have no real need for my big jog wheel on the control panel itself
11:36 AM roycroft: i could just use the one on the pendant even while at the console
11:36 AM Tom_L: https://www.youtube.com/watch?v=g99lUtjLfMU
11:36 AM Tom_L: that's before i started the new mill project
11:37 AM Tom_L: doing reverse with a fwd only control
11:38 AM gregcnc: belt slipping in that video?
11:38 AM Tom_L: roycroft, that's what i do with mine
11:38 AM Tom_L: gregcnc, no the motor just has no oomph
11:38 AM Tom_L: the pid had to build up before it would go again
11:38 AM Tom_L: that's why i'm getting another motor
11:38 AM gregcnc: ah speed was inconsistent
11:39 AM Tom_L: but it's an excellent demonstration of the spindle / axis sync
11:39 AM roycroft: so something like this would be ok for the pendant?
11:39 AM roycroft: https://www.amazon.com/100PPR-Terminal-Eletronic-Manual-Encoder/dp/B00PIAMLO0
11:39 AM Tom_L: that's what i used
11:40 AM Tom_L: or very similar
11:40 AM Tom_L: mine was 5v though
11:40 AM Tom_L: you could get a couple so if you decided you wanted one on the pannel too...
11:40 AM roycroft: that one is 5-24v, which is nice
11:40 AM roycroft: i already hae 24v field power
11:41 AM gregcnc: yeah my Emco mill doesn't rigid tap, seems the hardware should be capable
11:42 AM roycroft: power tapping would be really nice
11:42 AM roycroft: i hate tapping, and i do far too much of it
11:43 AM gregcnc: no tapmatic for the drill press?
11:43 AM roycroft: nope
11:43 AM roycroft: it's all roymatic
11:43 AM * JT-Cave has a tapmatic for sale
11:43 AM gregcnc: well worth the money
11:46 AM * JT-Cave heads back to the customers place
11:46 AM Tom_L: we used those all the time on the old bar machines
11:47 AM Tom_L: JT-Cave, tell em hi for us. and they have an audience watching their progress!
11:48 AM JT-Cave: it's pretty much running in auto now but they broke a limit switch cable I think
11:48 AM Tom_L: woops
11:49 AM Tom_L: tell em they can't be as clumsy as they used to be
11:51 AM * jymmmm sees armored cable in their future
11:52 AM unterhaus: got a helmet cover so I'll be less likely to take an arrow in the head when I'm riding in the woods
11:55 AM jymmmm: unterhaus: Be sure to place an apple in your mouth though
11:56 AM Tom_L: jymmmm, did you see that guy that catches a bullet?
11:56 AM unterhaus: "your face was so white, I thought you were a deer"
11:56 AM Tom_L: well, he quit doing it after the first performance
11:56 AM jymmmm: Tom_L: between his teeth? (yes)
11:57 AM unterhaus: I thought your face was a deer's butt is a good insult too
11:59 AM Rab: Good enough for Dick Cheney!
01:07 PM stavm: Hello everyone, I'm looking for any info for a noob like me about how to use LinuxCNC with my newly acquired CNC-STEP High-Z S-720/T
01:14 PM Rab: stavm, hi! Do you have the machine connected to a PC, and working with the CNC-STEP software? (I guess that's KinetiC-NC.)
01:15 PM stavm: Hi @Rab not right now, I used to use windows but I've migrated to Linux in the past year and want to use linux now
01:15 PM Rab: All right. Do you have the Zero-3 controller they show on their website?
01:15 PM stavm: Yes, I believe it's the Zero-3 as far as I can tell
01:17 PM Rab: Looks like the pinout for the LPT connector is described on page 18 of the Zero-3 manual: https://www.cnc-step.com/wp-content/uploads/2019-01-03-Operating-Instructions-Zero-3-35A_EN.pdf
01:18 PM stavm: so I have the lpt and that connects to a usb converter
01:19 PM Rab: So ideally, you will be able to run the stepconf wizard, set up the parallel port signals to match the manual for your controller, and be most of the way to a working configuration.
01:19 PM Rab: Hmm, the USB controller will probably not function at all with LinuxCNC.
01:20 PM stavm: so I guess I'll have to have an LPT port on the computer I'm using
01:20 PM Rab: So you may need to find a PC with a LPT port, that has pretty good latency.
01:20 PM stavm: ok got it
01:22 PM stavm: thanks Rab.
01:22 PM Rab: Sure!
01:24 PM Rab: There are also interface products you can buy, which offer better performance than a PC LPT port. E.g. https://store.mesanet.com/
01:25 PM Rab: But the LPT port is the cheapest way to at least get started.
01:28 PM CaptHindsight: $10 LPT PCIe card
01:31 PM CaptHindsight: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?WCH
01:38 PM Rab: I have single- and dual-serial port versions of that card. Both show up as 2 serial + 1 parallel. I got a MAX3243CPWR to populate the missing port on the single-serial card, I just need a chance to power the machine down.
01:38 PM CaptHindsight: figures, tons on ebay for <$15 shipped but they don't list the part number and/or blur the pic of the board
01:39 PM CaptHindsight: clear enough pic https://www.ebay.com/itm/Parallel-Port-DB25-25-Pin-LPT-Printer-to-PCI-E-Express-Card-Converter-Adapter/154157824674
01:39 PM Rab: I got both of mine from this seller: https://www.ebay.com/itm/332014988629
01:40 PM Rab: Working great. No guarantee of consistency in a commodity product like that, of course.
01:41 PM Rab: Mine have the crystal on board, which I feel pretty good about. It's interesting that some boards don't have it populated.
01:45 PM CaptHindsight: "the internal PLL provides a clock with a frequency of 125MHz, and the internal frequency coefficient defaults to
01:45 PM CaptHindsight: 1/68 frequency division, support to select no frequency division through CK2X or CKnS. In the internal PLL mode 1/68 frequency division
01:45 PM CaptHindsight: The difference between the 114.9Kbps and the standard 115.2Kbps is only 0.27%, which is acceptable.
01:45 PM CaptHindsight: In the single parallel port mode, CKSEL should be connected to the PERST# pin to disable the internal crystal oscillator."
01:46 PM Rab: Is that from the CH382 datasheet?
01:46 PM CaptHindsight: yeah
01:47 PM Rab: Okay, so no reason for the crystal on a parport-only card.
01:48 PM CaptHindsight: yes, it's used for the serial ports
01:49 PM CaptHindsight: make much headaches to use this card before
01:49 PM CaptHindsight: fun and games with part numbers and kernel driver peek-a-boos
02:42 PM unterhaus: I just asked someone on fb if moral depravity is considered a comorbidity for covid
02:43 PM roycroft: they're kind of opposites, i think
02:43 PM roycroft: as disbelief in the existence of the sars-cov virus is a sign of moral depravity
02:47 PM unterhaus: this guy was saying that it was nbd that a 75 y.o. died of covid
02:47 PM unterhaus: I expect to live to 85, so I consider dying at 75 to be a big deal
02:47 PM XXCoder: nbd?
02:47 PM unterhaus: no big deal
02:48 PM unterhaus: from mr. moral depravity's profile pic, I would say he is overweight, probably has high blood pressure and likely to have diabetes
02:49 PM unterhaus: so he's got the main comorbidities covered
02:50 PM roycroft: 78 is the average lifespan for a male in this country at the moment
02:50 PM roycroft: however, that's irrelevant
02:50 PM roycroft: saying that anyone who is approaching the average lifespan who dies from covid-19 is no big deal is at the very least a callous way to look at the pandemic
02:51 PM CaptHindsight: having anything negative to say about death is just being weak :)
02:51 PM roycroft: and i guarantee you this is the same guy who, 12 years ago, was screaming about the democrats and their death panels
02:51 PM Loetmichel: not only callous but also IMHO not fit for any society.
02:52 PM Loetmichel: "antisocial" i would call that
02:52 PM roycroft: "callous" was the most polite term i could think of
02:52 PM roycroft: it is not reflective of my actual feelings
02:53 PM CaptHindsight: well when you let others define what you think what do you expect
02:53 PM CaptHindsight: no thinking required, you just stay on script
02:53 PM roycroft: i do not let others do that at all
02:54 PM CaptHindsight: if it's a minority it's called a cult
02:54 PM roycroft: and i have words to describe them that do
02:54 PM roycroft: but i'm still trying to be polite, so i won't use any of those words here right now
02:54 PM roycroft: so i just got off the phone with a lady from uscutters
02:55 PM roycroft: because i'm still looking at getting a vinyl cutter
02:55 PM roycroft: and i told her i need to make some painting/etching masks
02:55 PM roycroft: and asked what size lettering i can cut with their machines that will come out clear and legible
02:55 PM roycroft: she said "3/4 of an inch to an inch - anything smaller just won't work"
02:56 PM roycroft: i can't see how they can sell machines with 3/4" resolution, so she must be totally wrong about that
02:57 PM CaptHindsight: maybe she meant the height and width of each letter
02:57 PM CaptHindsight: so maybe 1/10 inch res? (2.5mm)
02:59 PM roycroft: she did mean the height and width of each letter
02:59 PM roycroft: and she said it was 3/4" to 1"
02:59 PM roycroft: 1/10" is what i would expect
03:00 PM roycroft: she did say that i would need a machine with servo motors to get even that resolution
03:00 PM roycroft: that the stepper-based one were way coarser
03:02 PM CaptHindsight: unterhaus: https://imgur.com/gallery/g74pJip
03:04 PM CaptHindsight: roycroft: did the machine frame resemble a reprap?
03:04 PM roycroft: it's all ok though
03:04 PM unterhaus: Capt: 386
03:04 PM roycroft: because the pandemic is over
03:04 PM CaptHindsight: very glad
03:04 PM roycroft: the white house has officially announced that it has ended the pandemic
03:05 PM unterhaus: shoot, I just ordered masks, I guess I'll send them back to amazon
03:05 PM roycroft: haha
03:05 PM roycroft: take THAT, bezos!
03:05 PM XXCoder: new cases?> no no its covid's borther, dovid
03:06 PM roycroft: the cutter resembles a plotter, but a lot lighter weight
03:06 PM XXCoder: *brother
03:06 PM roycroft: https://www.uscutter.com/TITAN-2-Vinyl-Cutter-28-53-68-inch
03:06 PM XXCoder: i always wanted a cutter but then i dont really need one
03:06 PM roycroft: that's what the person recommended for the 3/4" letters
03:06 PM XXCoder: most of em im sure needs windows program to control
03:06 PM roycroft: yes
03:06 PM roycroft: and i don't like that
03:07 PM CaptHindsight: Repetition Accuracy 0.0003in (0.01 mm)
03:07 PM CaptHindsight: Resolution 0.0254 mm/pulse
03:07 PM roycroft: inkscape has some extensions that can drive some cutters directly, but finding out what current cutters it supports is harder than finding out the president's health care plan
03:07 PM unterhaus: I have a pretty decent old plotter that takes hpgl, so maybe linux compatible?
03:07 PM roycroft: allegedly, apthindsight
03:08 PM XXCoder: i wonder how convertable to lcnc thsoe machines is
03:08 PM CaptHindsight: XXCoder: show me the machine that is not :)
03:08 PM roycroft: the lower end ones have stepper motors
03:08 PM roycroft: disconnect the motors from the internal circuitry and connect them to a linuxcnc controller
03:08 PM unterhaus: high end ones had servos
03:08 PM roycroft: and bob's your uncle
03:08 PM unterhaus: really cheap servos
03:09 PM roycroft: the servo based ones are probably more difficult to control with linuxcnc
03:09 PM roycroft: but should be doable
03:09 PM unterhaus: not sure I see the difference if you have to swap controllers in either case
03:09 PM CaptHindsight: drag knife
03:09 PM roycroft: an old pen plotter could work, if you figure out how to put enough pressure on the knife
03:09 PM unterhaus: doesn't it take some drag knife logic to make them work well?
03:10 PM CaptHindsight: unterhaus: just have to not move the knife to quickly sideways
03:10 PM CaptHindsight: the knife needs enough time to spin before a fast direction change
03:11 PM roycroft: folks do engraving with linuxcnc
03:11 PM roycroft: so why not cutting?
03:11 PM unterhaus: engraving is easy
03:11 PM roycroft: both use a drag knife
03:11 PM unterhaus: single point cutter
03:11 PM roycroft: that's not engraving
03:11 PM roycroft: it's routing :)
03:11 PM roycroft: engraving uses a drag knife
03:11 PM unterhaus: okay, I didn't think it did
03:12 PM unterhaus: all the engraving machines I have seen have a router
03:12 PM CaptHindsight: or a chisel
03:12 PM roycroft: yes, it's common these days
03:12 PM roycroft: but they are not engraving machines
03:12 PM roycroft: they are "engraving" machines
03:12 PM CaptHindsight: Vinyl Cutters
03:13 PM CaptHindsight: hah Motor Type
03:13 PM CaptHindsight: Precision Stepper
03:13 PM CaptHindsight: Servo
03:13 PM CaptHindsight: Stepper
03:13 PM unterhaus: nowadays if you search for engraving machine you get lasers
03:14 PM XXCoder: you search for cnc router and you get laser 3d printer lathe mill engraver plotter
03:14 PM unterhaus: sign makers used to have parallelogram engravers with a spindle. Trying to find a picture of something that uses a knife
03:15 PM unterhaus: I should probably get rid of my plotters
03:16 PM CaptHindsight: unterhaus: pen plotters?
03:16 PM CaptHindsight: flatbed or roll type?
03:16 PM roycroft: i'm thinking of getting rid of mine
03:16 PM roycroft: it's e size
03:16 PM unterhaus: I have at least one of each
03:16 PM roycroft: and takes up a lot of space
03:16 PM roycroft: i only use it a handful of times per year
03:17 PM CaptHindsight: convert to 3d printer, make things like gaskets and silicone medical devices
03:18 PM CaptHindsight: https://www.youtube.com/watch?v=i5L6CpD6nM8
03:22 PM roycroft: i'd rather get rid of it
03:23 PM roycroft: youtube useless for the next week
03:24 PM CaptHindsight: sell it as a lucky charm against gypsy, witches, undead, opposing political viewpoints etc
03:25 PM CaptHindsight: i get the same electric meter ads on youtubes
03:26 PM CaptHindsight: no robocalls to day yet
03:27 PM roycroft: i haven't gotten any either
03:27 PM roycroft: but i should not have said that
03:28 PM roycroft: yesterday was the last day to mail in ballots here
03:28 PM roycroft: going forward voters are strongly advised to use the local ballot drops
03:28 PM roycroft: of which there are WAY more than one per county
03:31 PM unterhaus: we had less calls today too
03:31 PM unterhaus: I'm starting to be able to tell if it's a spam call from the number
03:31 PM unterhaus: they like repeated numbers and patterns for some reason
03:32 PM Tom_L: olivia give up on ya roycroft ?
03:33 PM Tom_L: unterhaus, ours are always a diferent number
03:34 PM XXCoder: ublock lol
03:34 PM XXCoder: excellent on stopping youtube ads
03:34 PM Tom_L: i think i use that
03:34 PM Tom_L: yeah, i used to use adblock +
03:36 PM Tom_L: so the motor was supposed to ship monday. call: oh yeah it's right here i just forgot who to send it to
03:36 PM Tom_L: dumbass
03:36 PM Tom_L: check your own webpage
03:40 PM roycroft: olivia appears to have abandoned me
03:41 PM roycroft: she's found better pastures
03:41 PM roycroft: fivethirtyeight.com now shows biden ahead in iowa
03:50 PM _unreal_: Tom_L, its a nice design but wont fit for me :(
03:50 PM _unreal_: need to be designed in the same form factor as the current drivers I have
03:55 PM Rab: fivethirtyeight.com showed some stuff in 2016, too.
03:55 PM unterhaus: rains from the hurricane are supposed to get here tomorrow night at dinner time
03:55 PM unterhaus: seems early
03:56 PM unterhaus: 100% chance of rain all day
03:59 PM unterhaus: an Californians here?
04:00 PM CaptHindsight: jymmmm left
04:00 PM roycroft: fivethirtyeight.com were dead on accurate in 2016
04:01 PM roycroft: i'm an oregonian
04:01 PM roycroft: we're not californians, but a lot of folks back east think we are
04:01 PM unterhaus: trump just said Californians had a special mask that they can't take off
04:01 PM XXCoder: W here
04:01 PM XXCoder: wtf
04:01 PM unterhaus: :)
04:01 PM CaptHindsight: funny how it takes a life threatening illness to get some people to think
04:01 PM XXCoder: on trump did you hear about trump event leaving lot of people stranded in freezing weather?
04:01 PM unterhaus: he also said that they dont' realize the germs go right through it
04:02 PM Rab: roycroft, this doesn't seem accurate to me: https://projects.fivethirtyeight.com/2016-election-forecast/
04:02 PM XXCoder: city had to do emergacy comission of buses to take people to their cars and such
04:02 PM CaptHindsight: is this accurate? https://i.imgur.com/mpGtxsg.png
04:02 PM Rab: Unless you're making a semantic distinction between chance of winning, and reality.
04:04 PM CaptHindsight: Not Stalin: The people who cast the votes decide nothing. The people who count the votes decide everything."
04:05 PM Eric__: The problem for 538 in 2016 is the model doesn't handle step changes well
04:05 PM Eric__: And that reminds me it's happy Comey letter day everyone!
04:06 PM _unreal_: after a quick shower I guess I'm going to put the motor controller back together and start trying to get the MESA setup.....
04:06 PM _unreal_: I could use a hand when I get to that point
04:07 PM Deejay: gn8
04:07 PM gregcnc: better eat out for the rest of the week, they are shutting indoor down in the county
04:07 PM _unreal_: On the other hand I may do what I was PLANNING on doing last night and adjust the step settings in the arduino so I can get an idea of what the PROPER pulse rate is to move the machine
04:08 PM _unreal_: not in florida
04:08 PM _unreal_: only democrat gov. states
04:08 PM CaptHindsight: heh 555 call
04:08 PM _unreal_: trying to cover up the BIDEN scandle
04:09 PM _unreal_: change the story. going to be REALLY hard now. an other whistle blower with even more devistating prove came out last night
04:09 PM CaptHindsight: the space alien scandal?
04:09 PM CaptHindsight: vapor trails lead to all the welfare moms?
04:09 PM _unreal_: CHINA money, child port.... and other shit I forget exactly I'd have to look it up
04:10 PM roycroft: oh brother
04:10 PM _unreal_: would not even be blwing up but twitter and facebook started it by trying to cover up the news. and are still trying to ban it....
04:10 PM roycroft: let's please not go there today
04:10 PM CaptHindsight: he sold child porn to the Chinese in exchange for the covid virus?
04:10 PM roycroft: these conspiracy theories are just in poor taste
04:10 PM _unreal_: lol CaptHindsight PROB not far from the truth
04:11 PM CaptHindsight: Grinders https://imgur.com/gallery/xhcr9
04:11 PM _unreal_: heh
04:12 PM CaptHindsight: hurricanes hit the southerns states first to remind them of what liberals will do if they are in charge?
04:12 PM CaptHindsight: makin up stuff can be fun
04:12 PM gregcnc: I think the fact checkers said the hurricanes were only there to water teh crops
04:13 PM Eric__: they always say hurricanes are the fault of hedonists in the northern states, but location seems to say otherwise
04:14 PM roycroft: i just don't know how otherwise seemingly intelligent human beings can walk around believing that kind of malarkey
04:15 PM CaptHindsight: oh great sky pumpkin, may you lead him unto finding the right wiring combo, amen
04:15 PM roycroft: trivially disprovable wild, impossible conspiracy theories
04:15 PM roycroft: it's just crazy
04:16 PM gregcnc: are we talking flat earth here?
04:16 PM Eric__: the problem with the scandal giuliani cooked up is that it's boring
04:17 PM gregcnc: going to the moon?
04:17 PM CaptHindsight: so flat it will make your earth spin
04:17 PM XXCoder: eric google words results say similiar thing. weirder google for sex stuff is more commin in southeast than anywhere else.
04:17 PM roycroft: the problem with the guiliani alleged scandals is the guiliani is ape shit crazy
04:17 PM Eric__: flat earthers from around the globe say that it's true
04:17 PM XXCoder: flat earth club is getting members all around the globe!
04:17 PM CaptHindsight: https://www.healthline.com/health/anosognosia
04:17 PM gregcnc: birds aren't real?
04:18 PM Eric__: yes, birds aren't real
04:18 PM CaptHindsight: Anosognosia is a lack of ability to perceive the realities of one’s own condition.
04:18 PM XXCoder: birds is actually dinsours.
04:18 PM CaptHindsight: Eric__: please define real
04:18 PM Eric__: and dinosaurs aren't real so QED
04:19 PM CaptHindsight: but first we should define define
04:19 PM XXCoder: please define define
04:19 PM Eric__: is the "birds aren't real" thing a real consipiracy theory?
04:19 PM Rab: Who is pooping on my car? Pedophile politicians?
04:19 PM gregcnc: gov robots man they are spying on everyone
04:20 PM Eric__: I think my front porch produced at least 20 new birds this year
04:20 PM XXCoder: they use quadcopers to fake bird poops on car
04:20 PM CaptHindsight: https://en.wikipedia.org/wiki/QAnon good size list here
04:21 PM gregcnc: is that fact checked?
04:22 PM CaptHindsight: Bill Maher is the is true leader
04:22 PM CaptHindsight: is
04:22 PM roycroft: bill maher is an arse
04:22 PM gregcnc: pretty soon flu won't exist
04:22 PM roycroft: he's right about many things
04:22 PM roycroft: but he's just a jerk about a lot of things
04:23 PM CaptHindsight: roycroft: yeah thats part of his shtick
04:23 PM roycroft: it's a harmful schtick
04:23 PM Eric__: libertarians
04:23 PM roycroft: his hating on religion in general, and on islam particularly, is bad for everyone
04:24 PM roycroft: he's not a libertarian
04:24 PM roycroft: he's a jerk
04:24 PM Eric__: he says he is
04:24 PM roycroft: here's some earth-shattering news:
04:24 PM roycroft: a lot of people call themselves libertarians
04:24 PM roycroft: the vast majority of them are just jerks
04:24 PM Eric__: republicans that like pot
04:25 PM Rab: haha
04:25 PM roycroft: well
04:25 PM roycroft: all republicans are jerks
04:25 PM CaptHindsight: Eric__: nah, he pokes fun at them
04:25 PM roycroft: that was not the case in the past
04:25 PM roycroft: but it is now, sadly
04:25 PM Eric__: I don't know, ron paul was the standard bearer
04:25 PM roycroft: there are some (very few) people who are actual libertarians who are not jerks
04:25 PM Eric__: pretty much a standard Republican
04:25 PM CaptHindsight: it's the very very silly party now
04:26 PM roycroft: and it seems that most democrats are idiots these days
04:26 PM roycroft: so the jets and the sharks have become the jerks and the idiots
04:26 PM CaptHindsight: silly party
04:26 PM Eric__: someone just flew by my house
04:26 PM roycroft: there's been a lot of jetpacking going on lately in socal
04:27 PM Eric__: it turns out spike strips aren't legal, who knew
04:27 PM gregcnc: what kind of airplane was it?
04:27 PM Eric__: "flew" in the figurative sense, in a vehicle that could actually hurt someoen
04:27 PM gregcnc: all of them can hurt someone
04:27 PM Eric__: cars have a big advantage, especially on a quiet street
04:28 PM Eric__: airplanes are a lot harder to hurt someone with, remember when someone flew a cessna into the white house?
04:28 PM gregcnc: that happens all the time on my street drag race from the stop to the light
04:29 PM CaptHindsight: well we do live in redneck land
04:30 PM roycroft: i remember when someone flew one into the wtc and into the pentagon
04:30 PM roycroft: a lot of people were hurt and killed when that happened
04:31 PM CaptHindsight: not much chance of a terrorist plot around here
04:31 PM roycroft: there was a pretty big one in michigan that was just thwarted
04:32 PM CaptHindsight: maybe if the Taco Bell was destroyed there would be an uprising
04:32 PM Rab: Local libertarian hero: https://en.wikipedia.org/wiki/2010_Austin_suicide_attack
04:32 PM Eric__: wtc was the exception that proves the rule, it's hard to hurt anyone with an airplane
04:33 PM roycroft: i still disagree that it's hard to hurt anyone with an airplane
04:34 PM roycroft: i'd agree that it's unusual to hurt a person with an airplane
04:34 PM roycroft: but it's really not hard to do, if that is someone's intent
04:34 PM CaptHindsight: Mind the Prop
04:34 PM roycroft: i'd even agree that it's generally hard to hurt *a* person with an airplane
04:35 PM CaptHindsight: and the exhaust
04:35 PM gregcnc: people mostly hurt themselves in airplanes
04:35 PM CaptHindsight: I'm still not flying on the same plane with any Trumps
04:35 PM roycroft: there is a great chance of collateral damage
04:35 PM roycroft: i have not flown since a week before 9/11
04:35 PM Eric__: you aren't missing anything
04:36 PM Eric__: after 9/11 they decided it was fine to treat customers horribly
04:36 PM roycroft: i decided not to participate in the security kabuki theatre
04:36 PM Eric__: I noticed they were nicer last summer
04:36 PM gregcnc: they even make you wear a mask now
04:36 PM Eric__: Delta has really improved my view of them because of their mask policy
04:37 PM CaptHindsight: i flew Korean Air a few times since then, but never Malaysian Airways
04:37 PM roycroft: it would be reckless endangerment not to wear one
04:37 PM Eric__: over 500 lifetime bans IIRC
04:37 PM Eric__: I can't believe people keep testing them at this point, they are serious about it
04:37 PM roycroft: people are idiots
04:38 PM CaptHindsight: have you met people?
04:38 PM roycroft: people conflate a public health issue with politics
04:38 PM roycroft: therefore they are idiots
04:38 PM Eric__: post 9/11, you have to do what the crew says or they land the plane
04:38 PM roycroft: i have met people
04:38 PM roycroft: they are idiots
04:38 PM roycroft: i stand by my statement
04:38 PM CaptHindsight: sure
04:38 PM roycroft: my chassis punches have arrived
04:38 PM roycroft: without nuts
04:38 PM roycroft: and i can't find a 7/16-20 nut
04:39 PM Eric__: that stinks
04:39 PM Eric__: ebay?
04:39 PM roycroft: but they look like they will work with that hf hydraulic chassis punch
04:39 PM roycroft: i can head to jerry's
04:39 PM roycroft: it's only a couple minutes away
04:39 PM CaptHindsight: is the US in the early stages of a civil war?
04:39 PM roycroft: and i'm sure they have them in grade 8
04:39 PM roycroft: ask me that again one week from today, capthindsight
04:39 PM Eric__: that's tough
04:39 PM roycroft: if i'm still around
04:40 PM roycroft: if teh internet is still around
04:40 PM Eric__: it's just enough people to be a real problem if nobody pushes back
04:40 PM roycroft: anyway, i'm gonna go for it
04:40 PM roycroft: when i get a nut i'm going to try to punch a hole through 0.120" steel
04:40 PM roycroft: the max that the punch is rated for
04:41 PM roycroft: it calls for an 8 ton pump to punch the hole, and the hf one is rated at 10 tons
04:41 PM roycroft: so it's semi-reliable to 5 tons
04:41 PM roycroft: i'll make sure to wear some grubbies
04:41 PM roycroft: i would not want to get my good clothes soaked in hydraulic oil
04:41 PM CaptHindsight: flak vest
04:42 PM roycroft: yeah, i should probably get a kevlar suit
04:42 PM roycroft: and do the testing outdoors
04:43 PM Eric__: I need to dig out my tyvek suit. Not for oil though
04:43 PM roycroft: i got an m16 die and an m22 die
04:44 PM roycroft: i'd like to get a square 1/16 din die at some point
04:44 PM Eric__: how much did that cost?
04:44 PM roycroft: the dies?
04:44 PM Eric__: ya
04:44 PM roycroft: $12 for the m16 and $18 for the m22
04:44 PM Eric__: that's not bad
04:44 PM Eric__: where from?
04:44 PM roycroft: auberins.com
04:45 PM roycroft: who are near atlanta
04:52 PM Eric__: they sell stuff for powder coat, shouldn't have looked
04:52 PM roycroft: i have some stuff to return at jerry's
04:52 PM roycroft: so i might as well head over there to return the stuff and buy a nut
04:53 PM roycroft: i'd like to test this punch soon, so that i can return the hf pump if it doesn't work
04:53 PM roycroft: i suspect it will work though - i've had pretty good luck with hf hydraulic stuff
04:54 PM CaptHindsight: https://www.menards.com/main/tools/power-tools/pneumatic-tools/air-tools/reusable-air-spray-canister/8330/p-1444421230460.htm needs a filter or filter any liquids before filling
04:54 PM CaptHindsight: worked for 5 minutes, now clogged
04:56 PM CaptHindsight: with Thompson's® WaterSeal
04:57 PM gregcnc: is 90psi enough to work well?
04:57 PM CaptHindsight: it's not for paint
04:58 PM CaptHindsight: but you get stream like out of a wd40 can
04:58 PM CaptHindsight: come with the extension tubes as well
04:58 PM * JT-Shop turns the lights off and calls it a day
04:59 PM CaptHindsight: possible useful for spraying bulk purchased thin lubes and other coatings
04:59 PM CaptHindsight: if it doesn't clog
05:41 PM CaptHindsight: https://imgur.com/JQyhf5s 5 years old
05:43 PM CaptHindsight: more oxidation than expected
05:43 PM _unreal: sup
05:44 PM _unreal: ok been doing some math 32000 should be my max step rate at 1/8th stepping
05:44 PM Tom_L: CaptHindsight, those yours?
05:44 PM CaptHindsight: Tom_L: yes
05:44 PM Tom_L: i've been oiling mine down each use to help with that
05:45 PM _unreal: oiling down your machine ??? HUBA HUBA
05:46 PM _unreal: LOL I thought I was crazy I turned the light on twice... hehe walked back into the room still off... blown b ulb
05:46 PM _unreal: turned the light on AS I was walking out of the room. beause was going right bac in
05:47 PM CaptHindsight: Tom_L: hit one about a year ago when in a hurry, just afew thou with a 1/2" end mill
05:48 PM CaptHindsight: they are ~6-7 years old now
05:50 PM CaptHindsight: might convert it to a forming machine
05:50 PM CaptHindsight: not exactly the fastest VMC
05:50 PM CaptHindsight: only 3k rpm spindle
05:51 PM Tom_L: older?
05:51 PM CaptHindsight: 1980
05:51 PM roycroft: well, my punch setup punched an m16 hole through 0.120" steel like it was butter
05:52 PM Tom_L: wiring still holding up?
05:52 PM CaptHindsight: all rewired
05:52 PM roycroft: but was really impressive is how easily i was able to completely pull the threads out of a 7/16-20 grade 8 nut when trying to punch an m22 hole
05:52 PM CaptHindsight: needs spindle bearings
05:52 PM roycroft: the inside of that nut looks like it was reamed to 7/16" now
05:53 PM Tom_L: one of my buds is getting kinda noisy too
05:53 PM CaptHindsight: $600 https://www.ebay.com/itm/1979-Matsuura-MC-500V-CNC-Mill-with-YASNAC-2000G-control/283531836872
05:53 PM CaptHindsight: lots of older machines around here
05:54 PM Tom_L: yep
05:54 PM CaptHindsight: spindle swap is easy enough
05:54 PM CaptHindsight: if i do I'll go 15k-20k
05:54 PM Tom_L: looks alot like one i did some programming for
05:54 PM CaptHindsight: rpm
05:55 PM Tom_L: yeah 3k is kinda slow unless all you run is steel
05:55 PM CaptHindsight: I rarely cut steel
05:55 PM CaptHindsight: heh yeah
05:55 PM CaptHindsight: it's always size for me
05:56 PM CaptHindsight: Table Size: 14" x 43", X Travel: 28" Y Travel: 16" Z Travel: 18.7"
05:57 PM CaptHindsight: here's one https://www.ebay.com/itm/MATSUURA-MC-710V-Ram-Master-1-Yasnac-Control-Under-Power-and-Running/122966332131
06:01 PM CaptHindsight: easy enough to convert for this https://www.youtube.com/watch?v=iNQ40MYwZqw
06:04 PM roycroft: there's a nice cnc lathe on cl here that would be fun if i had the room
06:04 PM roycroft: https://eugene.craigslist.org/tls/d/eugene-cnc-turret-lathe-fanuc-control/7207800351.html
06:06 PM JT-Cave: cheap enough
06:06 PM roycroft: it is
06:07 PM roycroft: it would be a good candidate for a lcnc retrofit
06:07 PM JT-Cave: must be a reason...
06:07 PM roycroft: the post says that the machine "has lost its parameters" and the owner doesn't know how to set them
06:08 PM roycroft: that doesn't mean there's nothing else wrong
06:08 PM JT-Cave: yea, I saw that
06:08 PM roycroft: but it's a plausible reason for dumping it so cheap
06:08 PM roycroft: if i had the room for it i'd at least be tempted to check it out
06:19 PM -!- #linuxcnc mode set to +v by ChanServ
06:24 PM JT-Cave: dang all the pullets are facing forward for a change... must be the rain
06:24 PM andypugh: Now, who was I talking to about my Central Heating controller?
06:24 PM JT-Cave: a while back you mentioned something about a controller Rpi or something
06:24 PM JT-Cave: or maybe an arduino
06:28 PM JT-Cave: I've messed with esp8266's
06:28 PM andypugh: Anyway, it’s ready for wiring to hardware now, has the temperature sensors wired up, and is triggering relays. More importantly my mum (who it is for) is on board with the idea.
06:28 PM JT-Cave: what was the security issue?
06:28 PM JT-Cave: cool
06:29 PM andypugh: Well, I was going to have it on the web so that I can see the status and help
06:29 PM andypugh: Hrere is is:
06:29 PM JT-Cave: what temperature sensor did you use?
06:29 PM JT-Cave: sweet
06:30 PM andypugh: I was wondering whether it would be wise to AES encrypt the callback URLs with a transient key.
06:30 PM andypugh: DS18B20
06:30 PM JT-Cave: same one I use to monitor the chicken coops temperature
06:30 PM andypugh: Click on any zone and you get that zone’s programme
06:31 PM JT-Cave: quite nice
06:33 PM andypugh: I was mainly trying for an interface that my mum could see and work with
06:34 PM andypugh: It does the same programme every day. Because my mum is old and retired, I don’t know whether I can be bothered to make ot vary by day-of-week
06:36 PM andypugh: But I think that if I did I would allow configuration with N programes, and allow them to be allocated to weekdays arbitrarily. Though there might be an argument for allocation to month days.
06:59 PM JT-Cave: yea if your home all day the temperature should be constant, for me weekdays the temperature changes during the day
08:01 PM Tom_L: anyone heard of casting into 1200c rated silicone?
08:01 PM Tom_L: aluminum...
08:11 PM XXCoder: Tom_L: https://hackaday.com/2018/02/25/casting-metal-parts-and-silicone-molds-from-3d-prints/ ?
09:14 PM CaptHindsight: Tom_L: and similar https://www.fluesystems.com/shop/high-temperature-black-silicone-enviromgraf.html
09:16 PM CaptHindsight: 2000F https://www.dap.com/media/3578/high-heat-fire-resistant-mortar_tds_3619.pdf
10:54 PM flyback is now known as snickers
10:54 PM snickers is now known as flyback
11:19 PM roycroft: holy moly
11:20 PM XXCoder: CaptHindsight: dang thats high temp
11:20 PM roycroft: coiled cables with decent wire counts are incredibly expensive
11:20 PM XXCoder: my link you can make mold for making mold
11:20 PM roycroft: does anyone sell them at a reasonable price?
11:20 PM XXCoder: so you can then cast alum using it
11:23 PM -!- #linuxcnc mode set to +v by ChanServ
11:23 PM -!- #linuxcnc mode set to +v by ChanServ