#linuxcnc Logs

Oct 26 2018

#linuxcnc Calendar

12:33 AM flyback: https://www.eetimes.com/document.asp?doc_id=1333889
12:37 AM flyback: that is sweet
01:48 AM Deejay: moin
03:34 AM jelly-home is now known as jelly
05:11 AM jthornton: morning
05:11 AM XXCoder: hey jt
05:11 AM XXCoder: I got the fun job today
05:12 AM XXCoder: broaching, I finished 145 parts
05:12 AM jthornton: engraving the part
05:12 AM XXCoder: left 5 parts for weekend shift
05:12 AM jthornton: oh the actual fun part?
05:12 AM XXCoder: yep the sarastic version of fun
05:13 AM XXCoder: its.. very boring. thankfully I already saved shitty shirt at tool cart so I just changed shirts for that
05:13 AM XXCoder: that job ruined one of my nicer shirts the first time I ran it
05:13 AM jthornton: I got the gear motor wires soldered on last night so need to wire everything up and start testing this morning
05:19 AM Tom_L: morning
05:19 AM XXCoder: cool :)
05:20 AM XXCoder: hey
05:21 AM Tom_L: broach on a press?
05:21 AM XXCoder: in a cnc mill
05:21 AM jthornton: wow 52°F with a high of 58°F today
05:21 AM Tom_L: 48F Hi 66
05:21 AM XXCoder: today will start off week with high of 58f, then it foes fast down to 53-52f and heavy rain whole time
05:22 AM XXCoder: washington foreverrain
05:22 AM XXCoder: river near work rose 4 feet it seems from start of my shift to end
05:22 AM XXCoder: not heavy rain, just doesnt stop.
05:22 AM jthornton: narrow river?
05:23 AM XXCoder: not expecially large river
05:23 AM XXCoder: very high levees though so it never gets into risk of spilling
05:27 AM Tom_L: we've got a river and a floodway and i've seen it overflow one time. this last rain we had it got about half full
05:27 AM jthornton: I wonder how someone draws a photo like this https://github.com/ericescobar/Chicken_Door/blob/master/Electrical_Diagram.jpg
05:29 AM jthornton: looks like they plopped some photos into the drawing then added lines and labels
05:29 AM XXCoder: http://kicad-pcb.org/
05:30 AM XXCoder: that ine has 3d rendering though maybe its for one pcb not wiring
05:30 AM jthornton: yea looks like pcb stuff
05:30 AM Tom_L: bring a pic in word and draw lines etc with that
05:30 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/boards/USBTiny_Mkii/USBTinyMkII_full_kit_desc.jpg
05:30 AM Tom_L: i did that with word
05:31 AM Tom_L: .... i think
05:31 AM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/boards/USBTiny_Mkii/USBTiny_MKii_Rev1-1_mods.jpg
05:32 AM jthornton: I can do that in Gimp
05:32 AM Tom_L: can't find the one i'm looking for
05:32 AM Tom_L: but it also had lines like you want
06:58 AM pink_vampire: jthornton: the program is "fritzing"
07:01 AM jthornton: thanks
07:23 AM miss0r: I have a question for you guys: I have to make some parts for a swap fabrikation plant. (The small sticks with cotton wool on the ends). I was planning to make some of the parts of aluminium, BUT when the cotton wool sweeps over the aluminium surface, they get some less than nice colors. :) Can you guys recommend a surface treatment?
07:24 AM methods_: hard anodize?
07:24 AM jthornton: aye
07:24 AM pink_vampire: why not use better material?
07:24 AM miss0r: pink_vampire: Weight, mainly
07:25 AM miss0r: hard anodized.. alright :) I'll need to see about that then.
07:25 AM jthornton: Ti maybe
07:25 AM miss0r: That does sound sortof pricy. I was realy hoping to keep the price down :D
07:25 AM pink_vampire: i know you can use anodize to coat it with lubricant
07:26 AM methods_: anodizing is a common process
07:26 AM methods_: should be able to test that cheap and fast
07:26 AM jthornton: tell the customer cheap, fast, good pick one
07:26 AM miss0r: methods_: Like diy anodozing?
07:26 AM methods_: lol
07:26 AM methods_: nooooo
07:26 AM miss0r: jthornton: indeed :)
07:26 AM methods_: just send it out batches get done regular
07:26 AM pink_vampire: diy clear anodize
07:26 AM methods_: you can usually get anodized stuff back quick
07:27 AM methods_: especially if it's a small part
07:27 AM methods_: and you don't care what color you get
07:27 AM miss0r: hmm.. I was hoping for black, I guess :]
07:27 AM miss0r: but for the test, I don't care - no
07:27 AM methods_: yeah
07:27 AM methods_: just tell them hey i don't care what color i need this hard anodized asap
07:28 AM methods_: and they'll throw it in with any batch
07:28 AM miss0r: I don't know much about anodizing; Will it change my outside dimensions?
07:28 AM pink_vampire: black is the hardest to do in DIY
07:28 AM methods_: not much
07:28 AM miss0r: methods_: Can you narrow that in a bit? :)
07:28 AM pink_vampire: you can't use the "rit" stuff
07:28 AM miss0r: pink_vampire: I think I will leave the anodizing to the professionals, to be honnest
07:29 AM methods_: https://www.arrowcryogenics.com/chemical-processing/hard-coat-aluminum-anodizing
07:29 AM methods_: type III anodize ( hard coat anodize) is .0005-.002"
07:30 AM miss0r: hmm. That should not be a major issue
07:30 AM miss0r: Have you any experience with teflon coating aluminium?
07:30 AM methods_: i do not
07:30 AM pink_vampire: you can also try ceracoat
07:30 AM methods_: but that would probably work well for your application
07:31 AM miss0r: ceracoat.. indeed
07:32 AM miss0r: I have to make quite an elaborate contraption. It takes the swaps directly off the assembly line, compresses them to a round shape, and pushes them into the round boxes
07:33 AM pink_vampire: can you take a picture of that?
07:34 AM miss0r: I suppose, I'll have to ask first though :)
07:35 AM miss0r: Alot of pneumatic stuff. :) Its not my own design; it is basically a proto type, that was put into production. (build by the owner of the plant).
07:36 AM miss0r: But he has alot of problems with it, mainly due to slobby tolerances ect. So I'm making a new one. a proper one, I hope :)
07:36 AM miss0r: Quite the interresting order; this mean I have to work from home for the next couple of weeks - and I do enjoy that
07:37 AM pink_vampire: sounds interesting
07:38 AM miss0r: I hope it will be
07:47 AM * Loetmichel feels a bit like cinderella like now. "there they go. There is blood on her shoe."... managed to walk an aluminium swarf into my toe... cut it out with a #11 knife, no its no longer hurting when i walk but it sticky... .-(
07:48 AM miss0r: I think you are thinking of one of cinderella's sisters; they were the ones who had to cut off a toe to fit the shoe ;P
07:59 AM Loetmichel: yes
08:14 AM SpeedEvil: How fucked up must cinderellas feet have been if her feet were the only ones that could fit the shoes?
09:46 AM gregcnc: https://www.engadget.com/2018/10/25/ai-generated-painting-sells-for-432-000-at-auction/
09:47 AM pink_vampire: i think i will go to mars, the earth go in a wrong direction
09:49 AM Glorfindel_ is now known as Glorfindel
09:52 AM gloops: art - the final frontier
09:53 AM Rab: Laugh-a while you can, monkey-meat. Who among us could compete with this masterpiece? http://obvious-art.com/assets/img/aedmond.png
09:54 AM gloops: well, sometimes youve just got to stand back and look at these things for a while
09:57 AM MarcelineVQ: Rab: anyone with a copy of Deep Doodle :>
09:57 AM MarcelineVQ: pink_vampire: What you're feeling at this moment is a normal part of the ageing process
10:03 AM Deejay: re
10:06 AM gloops: quote blackadder - the only impression he's good at is of a man with no talent
10:07 AM MarcelineVQ: There once was a sausage called baldrick
10:08 AM gloops: some moody looking skies here atm, i think we can unofficially say winter is here
10:35 AM {HD}: PLoP ftw!
10:37 AM gloops: https://www.facebook.com/marketplace/item/462380884291285/
10:37 AM gloops: £15 for a bench drill
10:38 AM gloops: hmm motor, stepped pulleys worth that
10:38 AM gloops: do i drive 25 minutes though...
10:39 AM {HD}: Go on your way to the grocery store.
10:44 AM gloops: i got those yesterday
10:45 AM MarcelineVQ: You forgot to get mushrooms
10:46 AM gloops: i cant be bothered its rush hour soon i could end up stuck for ages
10:47 AM gloops: ill wait until i need the pulleys then say - why didnt i buy that drill
10:52 AM Rab: My local hardware store sold off their inventory of cast aluminum pulleys at bargain prices. It was tempting to stock up, but I didn't have an actual application.
10:53 AM Rab: I know I will regret not buying it all.
10:54 AM gloops: yeah those kind of things are handy to just stick away and forget
10:55 AM gloops: with all the other stuff
10:58 AM {HD}: My linux live usb is kernel panicking. Running memtest now. Does an HDD need to be installed for a live usb?
11:10 AM {HD}: https://i.imgur.com/dZvDwut.jpg always here
11:11 AM pink_vampire: no file system
11:12 AM pink_vampire: try to re make your live usb
11:12 AM jthornton: yea looks like a faulty install on the usb
11:12 AM pink_vampire: how did you make the live usb?
11:20 AM Loetmichel: GRRR... thanks to the designer of our new laptops i have to work tomorrow... just tried to mount the brass hinge covers on 7 of them that should be delivered today: designer took the blueprints of the old version to get them manufactured... which had 1,5mm thinner keyboard cover... so i now have to somehow clamp 14 270° round brass tubes with the flat side up on the CNC mill and face them
11:20 AM Loetmichel: off 1,5mm... great. :(
11:21 AM {HD}: I made it with etcher from windows
11:21 AM {HD}: Maybe I actually need to dd build it?
11:34 AM JT-Shop: can etcher create a bootable USB? I use it to create my micro SD cards for my RPi's
11:35 AM {HD}: JT-Shop: yea. I use it all the time for other linux distros.
11:35 AM {HD}: I am dd’ing a drive now to test out.
11:36 AM JT-Shop: cool, never thought of trying that... now where is that linuxcnc image
11:37 AM MarcelineVQ: I always dd usb sticks for my bootable medium, too convenient
11:38 AM {HD}: Yea but I had to walk upstairs for a linux machine. Win box was closer.
11:39 AM {HD}: And dd always make me think I am going to wipe my fs
11:41 AM JT-Shop: aye, dd is a bit scary to use
11:44 AM MarcelineVQ: It's only scary if you're operating at a permission level you probably shouldn't be :>
11:44 AM {HD}: And dd should have a progress bar!
11:55 AM Loetmichel: {HD}: it has. with the right options
11:55 AM Loetmichel: cant remember which ones though ;)
11:56 AM MarcelineVQ: status=progress or something
11:56 AM pink_vampire: {HD}: just use unetbootin
11:57 AM pink_vampire: or "Rufus"
11:58 AM gloops: cant remember what i used now, rufus did work ok
11:58 AM gloops: need to stick linux drive back in here
11:58 AM gloops: im going to sort this HDU issue once and for all in the coming weeks
11:59 AM gloops: as in - self pour
11:59 AM Loetmichel: {HD}: use DDrescue... it has a progress bar by default and is slightly less cryptic with its drive designations
11:59 AM Loetmichel: i find it easier to deal with that dd
11:59 AM fragalot: HI
11:59 AM MarcelineVQ: gloops: Harmonic Dissonance Utopos?
12:00 PM Loetmichel: also it can read damaged HDDs or sticks ;)
12:00 PM gloops: high density urethane foam
12:00 PM fragalot: Loetmichel: what about burned sticks?
12:00 PM fragalot: or debarked ones
12:00 PM gloops: too expensive to buy in boards unless you have high paying punters
12:01 PM Loetmichel: fragalot: as long as they are still registered as an usb thumbdrive in the computer you can rescue whatever data is on them undamaged.
12:01 PM fragalot: Loetmichel: "sticks"
12:01 PM Loetmichel: USB sticks.
12:01 PM fragalot: as in dead tree carcasses ;)
12:01 PM Loetmichel: sorry. german lingo for thumbdrives
12:02 PM fragalot: it's universal across all languages, you're just being german and the joke went way over your head :-)
12:02 PM MarcelineVQ: I wouldn't say germany has laid claim to the term usb stick :D
12:02 PM Loetmichel: MarcelineVQ: the usual german term is USB stick. no idea if other languages use that either
12:02 PM Loetmichel: i only speak german and english
12:03 PM Loetmichel: and as far as i am aware its called Thumbdrive in english
12:03 PM fragalot: what the hell is the point of this "youtube premier" garbage
12:04 PM MarcelineVQ: Rather than what's the point, what is it at all?
12:04 PM SpeedEvil: fragalot: no ads.
12:04 PM fragalot: MarcelineVQ: instead of just releasing the video, the video first mimicks a live-stream where people can chat the first time it's viewable
12:04 PM JT-Shop: more crap videos without ads lol... 95% of putube is just pure crap
12:05 PM SpeedEvil: That is still thousands a day of good stuff
12:05 PM * SpeedEvil watches lockpickinglawyers latest escapade.
12:05 PM fragalot: :P
12:05 PM JT-Shop: yea thousands of good stuff and billions of crap lol
12:05 PM fragalot: LL is brilliant
12:06 PM fragalot: "this lock is great and all but here's this simple tool that opens it in seconds if you don't care"
12:07 PM gloops: hmm 25 cubic litres whats that in a 100mm sheet
12:07 PM gregcnc: lol almost like the soldering iron pic https://www.gettyimages.ca/detail/photo/beautiful-engineer-measure-part-precision-by-dial-royalty-free-image/1027749654
12:08 PM SpeedEvil: gloops: 1l per mm of 1m^2
12:08 PM SpeedEvil: So 100l = 100mm of 1m^2
12:08 PM {HD}: Its works!
12:09 PM Loetmichel: greg: ahem... on a regular desk?
12:10 PM gloops: 2500x100mm
12:11 PM gloops: not good
12:17 PM {HD}: Ugh! Doesn’t see disks...
12:39 PM pink_vampire: gregcnc: table is also a surface
12:40 PM CaptHindsight: how many of you here that post patches for fixes (not focusing on LCNC but all open source) get accepted with your name still included?
12:40 PM fragalot: gregcnc: is it the measuring angle, the crappy table, or the parallax error whilst measuring that irks you? :P
12:40 PM fragalot: CaptHindsight: All of them. or are we talking about open source?
12:41 PM CaptHindsight: (not focusing on LCNC but all open source)
12:41 PM fragalot: Right. I need sleep.
12:42 PM CaptHindsight: :)
12:43 PM CaptHindsight: I'm just noticing a trend of the fix being applied with not even a thanks
12:43 PM fragalot: does anyone know if those peak electronics LCR meters are worth a damn?
12:44 PM CaptHindsight: within 48 hours of submitting the info
12:45 PM jym: fragalot: for what purpose?
12:45 PM fragalot: jym: yay / nay testing of components that are suspect
12:45 PM CaptHindsight: useless as a chick magnet
12:46 PM CaptHindsight: so I hear
12:46 PM fragalot: i've got an V&A L/C meter now that can't even determine the difference between 1pF and 1mF
12:46 PM fragalot: even my chinese "universal" $5 tester works fairly well, but I want something more reliable
12:47 PM CaptHindsight: https://www.edn.com/electronics-blogs/benchtalk/4441716/The-mother-of-all-LCR-meters
12:48 PM fragalot: CaptHindsight: Eh.
12:48 PM gloops: now im actually thinking about this foam, brains lead to better solutions
12:49 PM fragalot: I'm thinking of getting the peak electronics set of an LCR, DCA and ESR
12:49 PM gloops: the way to go with foam signs is to foam cast the main board, with ordinary medium density foam
12:49 PM gloops: no machining
12:49 PM fragalot: but for 'only' about €200 more I could just get a keysight U1733C that can do the same things, but may be more reliable
12:49 PM fragalot: (I have no idea if peak is unreliable or not)
12:50 PM gloops: then just cut out the letters and logo etc and stick them on
12:50 PM CaptHindsight: fragalot: try asking in #electronics
12:50 PM fragalot: I did
12:50 PM fragalot: nobody responded :P
12:50 PM CaptHindsight: huh
12:52 PM CaptHindsight: don't settle for that, demand answers
12:52 PM gloops: troll them to death
12:52 PM jym: fragalot: Could make one yourself using a uC and one of those cheap signwave generators
12:53 PM fragalot: jym: i'm trying to avoid jankiness
12:54 PM fragalot: if I want jank, I can continue to use the chinese $5 component analyzer (which works surprisingly well to get you in the right ballpark)
12:54 PM jym: fragalot: ok
12:56 PM Tom_L: fragalot if it says FLUKE it's probably good
12:56 PM fragalot: Tom_L: even though fluke makes good things, their new stuff feels below par
12:57 PM {HD}: Woohoo I found a disk that works!
12:57 PM Tom_L: what's this world coming to....
12:57 PM fragalot: i've got a nice brymen BM860s that I quite like
12:57 PM fragalot: which, imho, blows my flukes out of the watr
12:58 PM fragalot: especially for continuity testing (heh :))
12:58 PM fragalot: the brymen responds INSTANTLY, whilst the flukes seem to need to complete the circuit for a fraction of a second before they start to beep
12:58 PM CaptHindsight: i send all my measurements to NIST for verification
12:58 PM Tom_L: maybe they take more samples
12:58 PM pink_vampire: i need access to oscilloscope for 5 minutes, any idea?
12:58 PM fragalot: plus the dual display on the brymen is very nice showing both AC and DC components simultaneously
12:59 PM fragalot: pink_vampire: you can borrow mine
12:59 PM CaptHindsight: no hackerspace nearby?
12:59 PM CaptHindsight: they are usually loaded with broken test instruments
01:00 PM pink_vampire: are you in the NY/NJ/PA area?
01:00 PM andypugh: pink_vampire: Any way to use Halscope?
01:00 PM pink_vampire: andypugh: what is "Halscope?"
01:00 PM andypugh: It’s the scope built in to LinuxCNC
01:01 PM pink_vampire: this is what i need to do https://www.youtube.com/watch?v=mo-wXcsIgzQ
01:02 PM fragalot: his triggering, or lack thereof, is bothering me
01:03 PM andypugh: What is he measuring?
01:03 PM pink_vampire: the pid settings in the g320x
01:03 PM andypugh: No, I mean, what is he _measuring_
01:03 PM fragalot: andypugh: "the test-point"
01:04 PM andypugh: Voltage?
01:04 PM fragalot: I mean, it's a scope probe, so yes.
01:04 PM pcw_home: you can do that with halscope
01:04 PM pink_vampire: this is the calibration of the pid in the g320x
01:04 PM andypugh: Yes, I imagine that encoder position would suffice.
01:05 PM pcw_home: you dont need to measure voltage, _if_ you can read encoder position
01:05 PM pink_vampire: it is voltage over time
01:05 PM pcw_home: you dont need to measure voltage, _if_ you can read encoder position
01:06 PM pink_vampire: the encoder is connect to the G320X
01:06 PM pcw_home: it might be tricky because the encoder is at G320 motorpower- which may be noisy
01:07 PM pcw_home: (relative to PC gnd)
01:07 PM pink_vampire: i just got a new servo controller from gecko, and i want to calibrate it.
01:09 PM CaptHindsight: lotsa NY/NJ/PA hackerspaces, I'm sure you could work something out
01:13 PM CaptHindsight: https://www.ebay.com/itm/TEKTRONIX-TDS220-100MHZ-1GS-s-TWO-CHANNEL-DIGITAL-REAL-TIME-OSCILLOSCOPE/283224557547 $53
01:13 PM fragalot: decent scope for the money
01:14 PM pink_vampire: bids
01:15 PM CaptHindsight: https://www.ebay.com/itm/Tektronix-TDS640A-Four-Channel-Digitizing-Oscilloscope-500MHz-2-GS-s/401623966971
01:16 PM pink_vampire: also bid
01:16 PM CaptHindsight: buy it now https://www.ebay.com/itm/TEKTRONIX-TDS-410-DIGITIZING-OSCILLOSCOPE-TDS410A/292777161323
01:17 PM fragalot: CaptHindsight: it doesn't work though
01:18 PM CaptHindsight: often they just need the self calibration to pass the self tests
01:18 PM CaptHindsight: also tons of USB scopes for $40 and up
01:18 PM pink_vampire: https://i.imgur.com/qEQCIAP.png what is the speed here?
01:18 PM fragalot: pink_vampire: 100ms per division
01:18 PM fragalot: (per square)
01:19 PM fragalot: so that signal is slow and can be measured with any ratty scope
01:20 PM pink_vampire: do you think arduino will be fast enough?
01:21 PM fragalot: barely fast enough to get a single one of those pulses in
01:21 PM fragalot: and it still needs to be processed & sent to your PC, so no
01:22 PM gregcnc: how about this? http://xoscope.sourceforge.net/
01:23 PM gregcnc: plus the sound card circuit?
01:23 PM gregcnc: aren't there similar softwares that use the sound card?
01:24 PM pink_vampire: https://www.youtube.com/watch?v=44XWCoWICEg
01:24 PM pink_vampire: this is look cool
01:24 PM gregcnc: I have a balancing software that uses accelerometers connected to the audio card
01:30 PM pink_vampire: do you know from the screenshot what is the voltage rate?
01:40 PM CaptHindsight: sample using Audacity
01:41 PM CaptHindsight: https://www.audacityteam.org/about/features/recording/
01:42 PM CaptHindsight: https://www.audacityteam.org/about/features/analysis/
01:50 PM fragalot: pink_vampire: it should say on the screen what the voltage per division is
01:50 PM fragalot: 500mV/div
01:51 PM pink_vampire: mm so it is AC
01:52 PM {HD}: Do I want my parallel port to be AT, PS/2, EPP, or ECP?
01:52 PM pink_vampire: any idea how to measure +-10V in 0-5 arduino input?
01:52 PM fragalot: you need an op-amp to shift and rescale it
01:53 PM fragalot: which is, i'm assuing based on your previous questions, above your skill level
01:53 PM fragalot: it really is easier to just purchase a cheap scope.. be it a USB scope or a 2nd hand model
01:54 PM fragalot: anything above 25Mhz bandwidth would be fine for this
01:54 PM pink_vampire: i know
01:55 PM pink_vampire: but i want to use the C axis now, not in 4 weeks
01:59 PM {HD}: I went with EPO
01:59 PM {HD}: EPP*
02:02 PM {HD}: https://i.imgur.com/2obKuZz.jpg hey, fresh install here. On first boot I clicked “use default“ for desktop environment. After first re-boot however I no longer see menu bar or launch panel. How do I get these objects back on screen?
02:05 PM pink_vampire: terminal > xfce4-panel
02:05 PM fragalot: {HD}: I believe that if you right-click the desktop you will get the menus
02:05 PM pink_vampire: or something like that
02:05 PM fragalot: that's the default for xfce anyway
02:05 PM * fragalot hasn't used xfce in ~7 years >.>
02:09 PM fragalot: gloops: https://imgur.com/gallery/kHFGALm
02:10 PM pink_vampire: ok, laser cutter added to the list
02:13 PM {HD}: pink_vampire: ++ xfce4-panel worked! Now I guess I need to add it to a startup script. I thought that would have happened by default ¯\_(ツ)_/¯
02:14 PM pink_vampire: no need to
02:14 PM pink_vampire: just open the startup,
02:14 PM {HD}: “The startup”?
02:14 PM pink_vampire: i think it is system > startup, and you just add it
02:14 PM pink_vampire: one sec i will power the linux cnc machine for you
02:15 PM pink_vampire: and take a picture
02:15 PM {HD}: Cool! Shouldn’t it have been the default behavior to start the panel every time?
02:16 PM fragalot: not necessarily
02:16 PM fragalot: the idea behind xfce is a "clean desktop", which excludes the panel
02:17 PM {HD}: fragalot: but I picked “default desktop“ when I first load it. I believe that the default desktop is with the menu and panel.
02:17 PM {HD}: But, I guess I’m wrong. Since that’s not the behavior that was exhibited.
02:17 PM fragalot: :P
02:18 PM {HD}: fragalot: what DE do you use?
02:18 PM fragalot: windows atm >.>
02:18 PM pink_vampire: {HD}: settings > session and startup > application autostart
02:19 PM {HD}: pink_vampire: do you have “xfce4-panel” in there?
02:20 PM {HD}: fragalot: are you running mach?
02:20 PM fragalot: oh, no
02:20 PM fragalot: the linuxcnc box runs whatever was common almost a decade ago and just starts axis fullscreen
02:20 PM pink_vampire: no, i did it the hard way years ago
02:20 PM fragalot: so I have no idea what DE it actually uses :D
02:20 PM pink_vampire: but just add it to the startup
02:21 PM {HD}: Added it. Doing a test reboot now.
02:42 PM pink_vampire: {HD}: any updates?
02:45 PM {HD}: It works. I am in step conf now trying to find parport address. I think its 378 but I am not 100%
02:45 PM {HD}: pink_vampire: ^
02:46 PM jthornton: just use 0
02:47 PM {HD}: https://i.imgur.com/a8EjvPT.jpg
02:47 PM {HD}: Really? Just 0
02:48 PM jthornton: aye
02:49 PM {HD}: “Test this axis” isn’t working...
02:49 PM pink_vampire: test the paraport
02:49 PM jthornton: that could be a bunch of issues
02:50 PM {HD}: pink_vampire: how?
02:50 PM jthornton: if you have for example a G540 test this axis won't work unless you disable the charge pump
02:51 PM {HD}: This machine used to work but I had hdd fail.
02:51 PM jthornton: it also will not enable an amp
02:52 PM {HD}: I will remember to backup my machine this time...once I get it working again.
02:52 PM jthornton: :)
02:58 PM {HD}: Hum. Still no dice.
03:00 PM {HD}: https://i.imgur.com/lawUWFd.jpg
03:01 PM {HD}: I have some limit switches connected to this parallel port. Is there a way to open up a monitor so I can click those switches and see if it’s even registering?
03:03 PM DaViruz: halmeter in the axis menu
03:04 PM DaViruz: (you can start it stand alone too if you wish)
03:04 PM DaViruz: there is also halscope that lets you view the signals over time
03:15 PM {HD}: I will look for those
03:16 PM {HD}: It works!
03:16 PM CaptHindsight: after 2nd magic boot?
03:19 PM {HD}: “Driver micro stepping” is a multiplier right?
03:21 PM CaptHindsight: yes
03:21 PM CaptHindsight: micro-steps per full step
03:26 PM gloops: hmm, looks like that bomber suspect could have been an irc guy after all
03:26 PM gloops: seems he was a prolific internet troll
03:27 PM {HD}: & pul = step
03:30 PM CaptHindsight: gloops: nah, just from Florida
03:33 PM CaptHindsight: all those alien abductions and probings are adding up
03:38 PM {HD}: Do I need to specify parport base address as 0x378 in&out? Or what? I am getting feedback from limit switches but steppers are still not moving.
03:41 PM CaptHindsight: check the polarity of your STEP pulses
03:42 PM {HD}: https://i.imgur.com/dJLmVHf.jpg
03:42 PM {HD}: CaptHindsight: where would I change that if it were wrong?
03:43 PM {HD}: Oh. Invert?
03:43 PM pink_vampire: click back
03:43 PM CaptHindsight: yes
03:44 PM {HD}: Holy vibrating steppers!
03:44 PM {HD}: Something moved!
03:44 PM CaptHindsight: \0/
03:44 PM andypugh: Many stepper drivers work better with inverted step pulses, 0V for step and 5V for space. Then you set up the drive optos with 5V on the + snd the p-port on the -. Then a step pulse is 5V from the +5 lighting the LED as the current flows into the parport pin. Most parport pins can sink 15mA, but many can only source 3mA, and often only at 3,3V
03:45 PM CaptHindsight: I asked around at the show yesterday if any of the robots give you access to the encoders directly
03:46 PM CaptHindsight: so you can synchronize things to the motion of the robot arms in real time
03:46 PM CaptHindsight: nobody do :(
03:47 PM CaptHindsight: #1 reason: we don't want our competitors to RE our robots
03:47 PM CaptHindsight: like it's some mystery
03:47 PM CaptHindsight: how they use encoders on every joint
03:47 PM Deejay: gn8
03:54 PM CaptHindsight: {HD}: http://linuxcnc.org/docs/2.6/html/hal/parallel_port.html
03:55 PM CaptHindsight: {HD}: gets into the LPT configs and modes
03:58 PM {HD}: https://imgur.com/a/nL6VhOE
04:06 PM andypugh: Do you have a PID on that? It’s moving a bit funny
04:07 PM {HD}: No feedback. Its acting very funny! Didn’t act like this before...
04:07 PM andypugh: You don’t need feedback to have a PID
04:08 PM {HD}: Guess I don’t know what pid is then.
04:09 PM Tom_L: how would you know what it's doing with no feedback?
04:09 PM andypugh: You can run a PID on the stepgen feedback (the pulses it has _actually_ made) to account for thread variability and stepgen limits.
04:10 PM andypugh: How do your stepgen and axis velocity and accel limits compare?
04:11 PM XXCoder: damn! my brother had to go out of work building due to bomb threat, and today someone smashed his car window!
04:11 PM {HD}: I am currently messing with max velocity and acceleration to see if I can improve it.
04:12 PM XXCoder: there must be some anti-goverment group because his co-worker truck window got smashed also
04:12 PM XXCoder: whats sad is that my brother works on HELPING people get jobs. I got job by dept he works in
04:12 PM XXCoder: some people really is morons
04:12 PM {HD}: 1.8°=200 and my driver is set to 800 microsteps so I have a 4 in microstepping.
04:14 PM Tom_L: XXCoder you don't understand... some ppl don't want jobs
04:15 PM Tom_L: they make their living off of us
04:15 PM {HD}: And the direction of the stepper changes randomly...wack!
04:15 PM XXCoder: Tom_L: I didn't have a job in consient matter for over 10 years. not having a job doesnt mean dont want a job
04:16 PM XXCoder: There is very very few people who does match what you say, but its rare
04:18 PM {HD}: Fire! It was on fire! No wonder it was acting wack!
04:18 PM {HD}: Hahha
04:19 PM XXCoder: your machine was on fire?
04:20 PM {HD}: Yea! I had a splice in the wire and it caught the insulation on fire.
04:20 PM XXCoder: concerning. did you solder wire together or crimp?
04:20 PM XXCoder: or is it just twist
04:21 PM {HD}: It was butt crimped
04:21 PM {HD}: This is actually a good thing in my opinion. At least something was wrong that I can fix.
04:25 PM {HD}: Need to figure out how to connect to my gx16-4 so I dont beed butts
04:25 PM XXCoder: but why did it start fire?
04:25 PM XXCoder: was wire too thin for amps?
04:27 PM XXCoder: they caught bomber that send bunch of bombs
04:27 PM XXCoder: and wow his van pictures jeez
04:27 PM SpeedEvil: Sigh.
04:27 PM SpeedEvil: Part of me is annoyed at the poor quality of his bomb-making.
04:28 PM XXCoder: very poor if none exploded
04:28 PM SpeedEvil: His twitter is pretty much as you'd expect
04:28 PM {HD}: XXCoder: arcing
04:28 PM XXCoder: HD interesting. so you just trimmed it some more and made sure theres no possible arc points?
04:30 PM {HD}: Well I am currently looking at installing these gx16 connectors but I don’t know how to terminate them. Looks like crimp but I think I will try solder.
04:31 PM XXCoder: bleh I wanna restart my cnc project but no room
04:32 PM {HD}: What is the project?
04:32 PM XXCoder: cnc router :)
04:32 PM {HD}: Oh like build one. Ha...
04:33 PM XXCoder: I have machine and electric system but I was planning to build a box for electrics and properly rewire but moved to new place, and no room to do anything
04:33 PM XXCoder: no, machine is functional
04:33 PM XXCoder: made few stuff
04:33 PM {HD}: Make room! How large of a machine?
04:34 PM XXCoder: small, but nowhere do I have room for it to actually run
04:37 PM {HD}: Buy a shed
04:37 PM XXCoder: money :) we are planning a shop but may not happen for while
04:37 PM XXCoder: an my bro suddenly has extra expense from antigoverment dumbass
04:40 PM {HD}: It works! After fixing the fire.
04:41 PM CaptHindsight: note to self: Check STEP polarity and for FIRES.
04:41 PM XXCoder: lol
05:01 PM {HD}: Nice
05:01 PM XXCoder: SpeedEvil: apparently trump used a royal we lol
05:02 PM XXCoder: reporter asked if he will call obama and clintons after bombing attempts, he says "they wanted me to, but we'll pass"
05:09 PM {HD}: I can’t type in G1 anywhere‽
05:11 PM CaptHindsight: which open source CAM can take text and engrave not only the outlines but the fill as well?
05:11 PM XXCoder: mdi?
05:12 PM CaptHindsight: do you have convert vector graphics/text into a 3d model first before any of the open CAM apps can create a tool path?
05:12 PM XXCoder: linuxcnc itself can do it actually
05:13 PM XXCoder: make a picture specified to size and picture to gpath
05:13 PM CaptHindsight: inkscapes gcode tool has created a tool path for the text and graphic outlines but I haven't gotten it to do the fills yet
05:14 PM CaptHindsight: XXCoder: I tried the LCNC tool, still trying to figure out the settings since it created some odd tool paths
05:15 PM XXCoder: yeah? odd. it uses row then column cutting pattern which isnt complex.
05:15 PM CaptHindsight: it lets you choose, row or column or row then column or column then row
05:15 PM CaptHindsight: or am I thinking of inkscape
05:16 PM XXCoder: yeah, order I used is default if I remember right
05:16 PM CaptHindsight: I'll keep messing with the settings
05:17 PM CaptHindsight: I didn't see a good writeup of how they work
05:17 PM CaptHindsight: guess it's supposed to be self explanitory
05:17 PM XXCoder: yeah it sucks
05:17 PM XXCoder: you have to calculate distance per picel
05:17 PM XXCoder: pixel
05:17 PM XXCoder: I suggest bigger picture better result
05:18 PM CaptHindsight: ok so say I have 1 pixel = the diameter of my end mill say 1mm
05:18 PM XXCoder: thats rather small reolution
05:18 PM CaptHindsight: calculate what distance per pixel?
05:18 PM XXCoder: it took me bit to figure it out but its pretty simple
05:19 PM XXCoder: say you want result to be 2 inches wide
05:19 PM CaptHindsight: ok
05:19 PM XXCoder: supposing logo is edge to edge (not recommanded)
05:19 PM CaptHindsight: ok for the sake of discussion
05:19 PM XXCoder: so picture happens to be 1000 pixels wide
05:19 PM XXCoder: you do 2" / 1000
05:19 PM XXCoder: thats distance per pixel
05:20 PM CaptHindsight: ok?!
05:20 PM CaptHindsight: distance per pixels in say X axis
05:20 PM XXCoder: indeed, you calulate y in same way just different numbers
05:21 PM CaptHindsight: yeah I'm actually using a 0.5mm tool
05:21 PM XXCoder: Z is bit weird, you have final depth, number of passes down
05:21 PM CaptHindsight: ah ok if you want depth vs brightness
05:21 PM CaptHindsight: Z = low/high = 0 brightness to 256 brightness
05:21 PM XXCoder: yeah. you can invert picture if picture happen to have result opposite you want also.
05:22 PM XXCoder: that window should have invert picture checkbox
05:22 PM CaptHindsight: yeah I inverted and got some odd plane slice through the path
05:22 PM CaptHindsight: not what i expected
05:22 PM XXCoder: odd
05:22 PM CaptHindsight: i just need 2 heights right now
05:23 PM XXCoder: tried gcode in camotics or something see what happen
05:23 PM CaptHindsight: Z clearance and milling depth since all cuts will be the same depth
05:23 PM CaptHindsight: i have real CAM tools here to test
05:23 PM CaptHindsight: wanted to see what the open ones might do
05:24 PM XXCoder: some of open tools do rock, but some eh
05:24 PM XXCoder: cams is very weak area
05:24 PM CaptHindsight: I have actually gotten some good paths with pyCAM
05:24 PM XXCoder: you have tool such as inkscape to gcode, freecad and linuxcnc itself. few other stuff
05:24 PM XXCoder: nice
05:24 PM CaptHindsight: seems to be about how you set it up
05:25 PM XXCoder: freecad have been ramping up really good on cam but still diffult to use
05:25 PM CaptHindsight: the howtos for inkscape to gcode are mostly out of date
05:25 PM XXCoder: howtos for freecad cam is riciously out of date also
05:25 PM CaptHindsight: i have 2 bit graphics
05:26 PM CaptHindsight: so 0 or Black is the cut
05:26 PM CaptHindsight: 1 is when the spindle moves Z to clear
05:26 PM CaptHindsight: so this should be easy
05:26 PM {HD}: How do I run “G28 X“ if I can’t run G code without being homed?
05:27 PM CaptHindsight: but so far I have good output for the outlines of the graphics
05:27 PM XXCoder: 1 is highest point, you can set it so its still below surface of materal so it also finishes face
05:27 PM XXCoder: use blur tool
05:27 PM CaptHindsight: not for the fills yet
05:28 PM CaptHindsight: I'm going to eventually write some 5-axis CAM but I'm trying all the open tools out to see if I can expand on something already started or if I should just start from scrath
05:29 PM CaptHindsight: scratch
05:29 PM XXCoder: https://www.youtube.com/watch?v=gOWVCvER3i4
05:29 PM XXCoder: sorry video sucks
05:31 PM CaptHindsight: just missing some pixels :)
05:34 PM XXCoder: lol yep
05:35 PM XXCoder: anyway it cuts surface also so it looks great
05:35 PM XXCoder: 1/16 ball endmill
05:41 PM jthornton: what's up XXCoder
05:42 PM Rab: CaptHindsight, I don't know that this is exactly what you want, but FlatCAM might do fill clearing: http://flatcam.org/
05:42 PM XXCoder: it sucks, someone went and smashed few of my brother's coworkers car windows
05:42 PM XXCoder: including my broither's
05:42 PM XXCoder: thats a day right after bombing threat call of yeserday
05:43 PM XXCoder: Rab: is it open source?
05:43 PM Rab: XXCoder, it is.
05:43 PM jthornton: well that sucks, what's their beef?
05:43 PM XXCoder: thats good. sometimes people make suggestions and miss certain requirements :) (I do that sometimes)
05:44 PM XXCoder: jthornton: no idea, may be copycat from that guy trying to bomb some people, or has beef with DVR, so on
05:44 PM CaptHindsight: ok so I took the example torus.png and made it 400 x 400 pixels
05:45 PM jthornton: yea lot's a wacko's out there
05:45 PM jthornton: pretty much got my new chicken door done
05:45 PM XXCoder: jthornton: I got NO idea why, as DVR is nearly best agency in goverment, it helps people get jobs.
05:45 PM XXCoder: aka opposite of dole
05:46 PM XXCoder: its also one of worse funded ones.. my brother has over 100 cases to manage
05:47 PM CaptHindsight: XXCoder: so "<XXCoder> you do 2" / 1000" , what do you enter? 0.002?
05:47 PM XXCoder: yeah
05:47 PM CaptHindsight: lets try
05:48 PM XXCoder: .002" per pixel in picture
05:50 PM CaptHindsight: the setting all mention (units)
05:50 PM CaptHindsight: so if you choose inches I would hope the 1 unit is 1"
05:51 PM CaptHindsight: and if you choose mm then 1 unit is 1mm
05:51 PM XXCoder: I think that is so yeah
05:52 PM CaptHindsight: I never assume, this should not be up to the user to guess
05:52 PM XXCoder: yeah the gui sucks
05:52 PM CaptHindsight: just needs some clarification
05:53 PM CaptHindsight: happy to do it when i figure it out, a step that should not be required
05:53 PM XXCoder: look at top of gui
05:53 PM XXCoder: it has g21 or g20 (mm, inches)
05:53 PM XXCoder: above "invert image"
05:53 PM CaptHindsight: yeah, it's cranking away so I can't see the gui now
05:53 PM CaptHindsight: another annoying feature
05:54 PM CaptHindsight: don't hide the screen that you just setup
05:54 PM XXCoder: I dont think anyone worked on that thing for long while
05:54 PM CaptHindsight: OK done, lets see what it did
05:54 PM CaptHindsight: yeah better than nothing
05:55 PM XXCoder: engine works fine, I think it shouldnt make you calculate inch/pixel or whatever, just input final size you want and it calculates by itself
05:55 PM XXCoder: say I want size to be 2 inches on X and "same ratio" for Y it does all itself. or can input y seperately if I wanna alter ratio
05:56 PM CaptHindsight: 45K lines
05:56 PM CaptHindsight: I'll have to play with it
05:56 PM XXCoder: yep millions of g1s
05:56 PM CaptHindsight: I see what they were trying to do
05:57 PM CaptHindsight: but you can also adjsut the artwork before going to CAM
05:57 PM XXCoder: yep you can use blur to soften edges a little for example
05:58 PM CaptHindsight: I can easily see whats going to happen if 1 pixel is the same size as the cutting toolr if the pixel is larger than the cutting tool
05:58 PM XXCoder: ix pixel is larger than tool then picture is too small
05:58 PM CaptHindsight: I can now see some of the crazy output is when a pixel is smaller than the cutting tool dia
06:00 PM XXCoder: you mean larger?
06:00 PM CaptHindsight: say your cutting tool is a laser
06:00 PM CaptHindsight: it might be fixed at 0.01mm
06:00 PM CaptHindsight: or even 0.1mm
06:01 PM CaptHindsight: unless you want to get into all sorts of scaling and averaging you want the artwork 1:1 with the laser spot dia , 1 pixel = 0.1mm
06:02 PM Rab: Inkscape+gcodetools is pretty cool, but it has some serious issues. E.g. the paths in Inkscape have directionality, which gcodetools uses to define the cutting path. So if you want e.g. climb instead of conventional milling on a path, you have to know to flip it in Inkscape.
06:03 PM Rab: And I don't know of any quick way to find the path direction, other than running path-to-gcode to see the preview arrows.
06:03 PM CaptHindsight: Rab: using it to laser engrave is my first goal with inkscape
06:03 PM Rab: Although I guess you could turn on start arrows for the path.
06:04 PM CaptHindsight: don't care about direction as long as it traces the outlines and performs the fills
06:04 PM CaptHindsight: I'd actually prefet vector trace and fills vs raster scanning the output
06:04 PM CaptHindsight: prefet/prefer
06:04 PM Rab: CaptHindsight, I don't know if Inkscape lets you use a path design for fill textures, but that could be one way. Make a texture with like a window blind path, and fill the shape.
06:05 PM CaptHindsight: Rab: I've seen some use it for laser engraving with fills
06:05 PM CaptHindsight: but no howto yet
06:07 PM diverdude: it seems arduino type boards are preferred to control stepper motors and similar. why are raspberry pies not used fr this sort of work...they cost more or less the same
06:08 PM CaptHindsight: http://kiskz.ucoz.hu/_fr/1/7528098.jpg laser engraving with inkscape
06:08 PM CaptHindsight: diverdude: not preferred by me :)
06:09 PM CaptHindsight: some people are just *duino fanboys
06:09 PM diverdude: CaptHindsight: what do you prefer?
06:09 PM CaptHindsight: STM32
06:10 PM CaptHindsight: Rpi's need a way to software step (toggle IO pins)
06:10 PM diverdude: CaptHindsight: is that comparable with raspberry pi?
06:10 PM CaptHindsight: they are different
06:10 PM jthornton: you can run LinuxCNC on a RPi
06:10 PM XXCoder: whats latency like
06:10 PM CaptHindsight: duinos use a lower speed ARM cpu with limited memory and no GPU
06:11 PM CaptHindsight: an Rpi is a high speed ARM cpu without IO's that can be toggled in real time repeatedly
06:11 PM CaptHindsight: but has lots of memory and a GPU to run a GUI
06:11 PM andypugh: I would have said that dedicated drivers are preferred for driving steppers (TB6600, Pololu, Gecko, Leadshine) and then the source of the step pulses is personal choice. (Though anyone who doesn’t choose LinuxCNC is an imbecile)
06:12 PM jthornton: lol
06:12 PM CaptHindsight: what Andy said
06:12 PM XXCoder: andypugh: agreed, though depends on driver quality, tb6560 is shit'
06:12 PM XXCoder: tb6600 works well
06:13 PM pcw_mesa_: An RPI + some PowerStep01s would work (I plan to make such a beast when I get a chance)
06:13 PM jthornton: http://gnipsel.com/images/chickens/12x16-coop/pop-door-01.jpg
06:13 PM CaptHindsight: diverdude: stm32 is similar to *duinos but are lower priced and much higher speed
06:13 PM jthornton: http://gnipsel.com/images/chickens/12x16-coop/pop-door-02.jpg
06:13 PM XXCoder: jthornton: nice!
06:13 PM jthornton: thanks
06:14 PM CaptHindsight: Rpi to PowerStep01 over SPI?
06:15 PM pcw_mesa_: look nice and gravity fall so no guillotined chickens
06:15 PM XXCoder: eh random chance of chicken meal ;)
06:15 PM jthornton: yea just a string and a piece of 3/16" hardboard
06:15 PM pcw_mesa_: yes PowerStep01 have SPI interface
06:15 PM pcw_mesa_: 80V 10A
06:16 PM jthornton: is the PowerStep01 a kit of some kind or some off the shelf thing?
06:16 PM pcw_mesa_: of the shelf chip
06:16 PM CaptHindsight: https://www.st.com/en/motor-drivers/powerstep01.html
06:16 PM jthornton: yea I'm looking at it but it looks like a credit card
06:17 PM CaptHindsight: small
06:17 PM pcw_mesa_: thats the demo board the chip is pretty tiny
06:17 PM CaptHindsight: https://www.youtube.com/watch?v=HhZE-Xn6sgQ
06:17 PM jthornton: ah so you have to have some boards made with that chip?
06:18 PM CaptHindsight: yes
06:18 PM XXCoder: wiring connectors is interesting
06:18 PM CaptHindsight: QFN 11 x 14 mm
06:18 PM pcw_mesa_: 11x14 mm
06:19 PM CaptHindsight: 5 mhz SPI so maybe 400KHZ max steps?
06:19 PM pcw_mesa_: the steprate is not dependent on the SPI rate
06:20 PM CaptHindsight: so no sync after the steps get sent over SPI
06:20 PM CaptHindsight: sync between axes
06:21 PM pcw_mesa_: steps are not sent over SPI
06:21 PM CaptHindsight: but open loop is open loop
06:21 PM pcw_mesa_: velocities are sent and position would be read back just as linuxCNC works now
06:22 PM CaptHindsight: potato potato
06:22 PM pcw_mesa_: it has a built in trajectory generator
06:24 PM jthornton: pretty cool
06:30 PM pcw_mesa_: yeah so is ok with just a servo thread (which a RPI can handle)
06:31 PM CaptHindsight: 24V SPI
06:32 PM CaptHindsight: or maybe SPI to differential then back to SPI
06:32 PM pcw_mesa_: PowerStep01 SPI is 3.3V but it would need to be isolated
06:32 PM pcw_mesa_: especially for 4 or so axis
06:33 PM pcw_mesa_: lots of noise on the 80V GND
06:33 PM diverdude: anybody in here has experience with FTDI chips?
06:33 PM CaptHindsight: + noise immunity
06:33 PM CaptHindsight: diverdude: lots of clones
06:34 PM diverdude: CaptHindsight: ok - how so you usually communicate with them?
06:34 PM CaptHindsight: so flakey results based on if you have a real FTDI device vs clone
06:34 PM pcw_mesa_: galvanic isolation only takes 4 signals
06:34 PM CaptHindsight: USB to serial
06:34 PM diverdude: CaptHindsight: you on linux?
06:34 PM CaptHindsight: usually
06:35 PM diverdude: CaptHindsight: so you program using libftdi?
06:35 PM pcw_mesa_: Yeah they have a a serial looking API on the OS side (as one option)
06:35 PM CaptHindsight: diverdude: haven't had to in 10+ years
06:36 PM CaptHindsight: back to CAM, ugghh
06:36 PM pcw_mesa_: we used them in some early FPGA boards (but dont use them anymore) They were OK for what they do
06:36 PM diverdude: CaptHindsight: i have a driver with an ftdi chip...so i tried communicating with it from python...it works first time i connect to it, but next time it just hangs for some reason...as if its not properly shut down the first time
06:37 PM pcw_mesa_: yeah Ive seen their driver crash windows...
06:37 PM diverdude: and the document describing the seria communication with that driver is just totally impossible to understand :/
06:37 PM pcw_mesa_: just looks like a com port
06:38 PM diverdude: pcw_mesa_: yeah...should be like a com port
06:38 PM diverdude: pcw_mesa_: i think i can use a serial monitor to communicate with it - but i did not have any success with that :(`
06:38 PM pcw_mesa_: our (ancient) software that accesses it is the same for com ports and USB
06:39 PM pcw_mesa_: just different com port number
06:39 PM diverdude: pcw_mesa_: its mounted under /dev/ttyUSB0
06:39 PM pcw_mesa_: (we were not even using serial on the other side of the adapter but the 8 bit wide FIFO mode)
06:43 PM CaptHindsight: somebody needs to make serial controlled steppers for <$100
06:44 PM CaptHindsight: larger nema23 or nema34 for ,$200ea
06:45 PM pcw_mesa_: I think a Ethernet controlled 4 axis drive is doable withe the PowerStep01s for <$200
06:46 PM pcw_mesa_: a RS422 controlled motor/integrated drive should be less than $100
06:46 PM CaptHindsight: was looking at the i/mx8 but it's taking forever for linux
06:47 PM CaptHindsight: hey china start making them before the tariffs go up
06:47 PM CaptHindsight: ah but they would be half crap anyway
06:47 PM CaptHindsight: US made for $100
06:48 PM CaptHindsight: though i was starting to see decent servo motors out of China
06:49 PM XXCoder: tariff wars suck
06:49 PM CaptHindsight: well there is a bigger game being played
06:50 PM CaptHindsight: China's expansion into the south China sea
06:50 PM CaptHindsight: it's not just about the lop sided tariffs
06:52 PM CaptHindsight: https://thediplomat.com/2018/10/the-world-according-to-china/
06:54 PM XXCoder: by 2049 thats long range plan
06:54 PM XXCoder: unfortunately china has conceraton camps now
06:54 PM CaptHindsight: yeah, have had for a while
06:54 PM CaptHindsight: just more now
06:54 PM CaptHindsight: not fun there any more
06:54 PM XXCoder: I wonder if we will evenually put stop to that
06:55 PM CaptHindsight: glad i didn't stay
06:55 PM XXCoder: nazi germany we fought because that country was warring everywhere
06:55 PM XXCoder: china isnt warring anyone at this time
06:55 PM CaptHindsight: ? we are currently on the way to getting them here if the Great Pumpkin gets his way
06:56 PM CaptHindsight: XXCoder: they are pushing and shoving vs invading right now
06:56 PM CaptHindsight: look into the Spratly islands
06:56 PM XXCoder: yeah but not offically at war yet
06:56 PM CaptHindsight: https://en.wikipedia.org/wiki/Spratly_Islands_dispute
06:57 PM CaptHindsight: no war, you don't want that
06:57 PM CaptHindsight: you just push your way in
06:57 PM XXCoder: lol something new in spam emails: blood sugar parasites
06:58 PM CaptHindsight: they have also invested in securing right to raw materials in Africa
06:58 PM CaptHindsight: trade money and infrastructure projects for access to ports, and minerals
07:00 PM CaptHindsight: https://www.chinatravelnews.com/article/119451
07:00 PM CaptHindsight: https://www.ft.com/content/e150ef0c-de37-11e7-a8a4-0a1e63a52f9c
07:00 PM XXCoder: wow interesting https://www.indiegogo.com/projects/not-ereader-first-e-ink-mobile-phone-monitor#/
07:02 PM CaptHindsight: does it also spy on you or help you be spied on?
07:03 PM XXCoder: no idea really. though its first eink tablet (not ebook) and it can do 30 fps or so
07:03 PM XXCoder: so pretty cool
07:03 PM XXCoder: might buy one to turn into commucation tool at work
07:03 PM XXCoder: 370 bucks biut much though
07:07 PM SpeedEvil: Err...
07:08 PM SpeedEvil: Root the appropriate kindle
07:08 PM XXCoder: kindle dont do 30 fps it does 1/2
07:08 PM andypugh: “Protect your eyes from LCD” They lost me 100% with the sales pitch
07:09 PM SpeedEvil: https://www.youtube.com/watch?v=k22BB8VPI5o
07:09 PM SpeedEvil: Angry Birds on Rooted Nook Touch
07:09 PM XXCoder: thats nook
07:10 PM andypugh: Why do I need to protect my eyes from LCD? As far as I know they emit or reflect photons, and my eyes are OK with photons.
07:11 PM XXCoder: how much computer do you use?
07:13 PM SpeedEvil: I thoguht I'd seen a similar video on a recent kindle, but can't find ATM
07:17 PM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=15392&g2_imageViewsIndex=1
07:17 PM Loetmichel: ups
07:17 PM Loetmichel: wrong channel
07:18 PM pink_vampire: is it safe? https://www.virustotal.com/#/file/d57a6ec9940909206caa9a8f970a5622f5e8b4e6cb8254d7cc0cbe6c039efae4/detection
07:19 PM XXCoder: backdoors is very nope
07:20 PM pink_vampire: but non of the other show a problem
07:20 PM XXCoder: those can only detect known ones, so not all has complete databases
07:23 PM Glorfindel: andypugh: backlights are hard on your eyes, especially if it's dark
07:24 PM Glorfindel: though LCD is oddly specific
07:24 PM SpeedEvil: Glorfindel: I do not find that to be true.
07:25 PM SpeedEvil: Some people of course may.
07:25 PM Glorfindel: have you read a book in the dark
07:25 PM SpeedEvil: Read a large slice of a gigabyte that way
07:25 PM Loetmichel: Glorfindel: nope
07:26 PM Glorfindel: Loetmichel: nope what
07:26 PM Loetmichel: the CONTRAST bewtween surroundings and a BRIGHT LCD is hard on your eyes
07:26 PM XXCoder: Glorfindel: lcds is everywhere so not surpised
07:26 PM Loetmichel: no danger on some monitors though
07:27 PM Glorfindel: Loetmichel: I could have worded it better, but even dim screens in a dark room can give you a headache and can be harmful
07:27 PM SpeedEvil: Glorfindel: For some people.
07:27 PM Glorfindel: SpeedEvil: well, I think you are an exception, rather than a rule, afatg :P
07:27 PM Loetmichel: Glorfindel: its still the contrast to the surroundings, not the LCD itself
07:28 PM Loetmichel: even a dimmed TFT is a lot brigher than a dark room
07:28 PM Glorfindel: Loetmichel: the lcd causes the contrast, so stop nitpicking
07:28 PM SpeedEvil: Reader software and constrast htat can reduce brightness way down are useful.
07:28 PM SpeedEvil: My tablet can go so low that I can't read it at normal speed
07:29 PM Loetmichel: Glorfindel: i meant that that can happen with any small viewing angle light source that you stare at while in the dark
07:29 PM Loetmichel: a small window in a dark building for example would just have the same effect
07:29 PM Glorfindel: so... any screen?
07:29 PM Glorfindel: oh
07:29 PM andypugh: LCD = bad OLED = not bad?
07:30 PM SpeedEvil: andypugh: 'no'
07:30 PM SpeedEvil: andypugh: The flicker and brightness range on both can overlap and specific models be a lot more flickery with a minimum brightness than others of the other technology.
07:30 PM andypugh: As I said, the sales pitch lost me in the first sentence, that was my point.
07:30 PM Loetmichel: there is an easy solution for monitors though: just install some lights on the back of the TFT
07:31 PM Loetmichel: so its surroundings are not dark as a coal sack ;)
07:32 PM Loetmichel: SpeedEvil: what flicker on a TFT?
07:32 PM andypugh: I am actually really sensitive to flicker (hate LED tail lights) but have far more issue with CRT than LCD monitors.
07:32 PM SpeedEvil: Loetmichel: backlight flicker is unfortunately a thing, especially at very low brightness settings on many monitors.
07:32 PM SpeedEvil: Some monitors do not have perceptual flicker.
07:33 PM SpeedEvil: The TFT panel itself does not flicker.
07:33 PM andypugh: I haven’t tried an LED-illuminated LCD screen yet. I _think_ my Mac is CFL iluminated (pre retina) and my phone is OLED
07:33 PM Loetmichel: andypugh: LED tail lights would be OK if the car manufacturers wouldnt be to cheap to install some smooting caps and/OR use a much higher PWM frequency
07:33 PM andypugh: Loetmichel: Genau
07:34 PM Loetmichel: SpeedEvil: also for PWM reasons or more for inconsistencys in the brightness signal?
07:34 PM SpeedEvil: TFT panels refresh from the top to the bottom more or less consistently and do not cause flicker other than that imposed by the backlight.
07:34 PM Loetmichel: i know
07:34 PM Loetmichel: i meant the backlight flicker
07:35 PM SpeedEvil: CRT refresh is very, very different, and most of the light comes out in 1/500th or so of the picture area.
07:35 PM andypugh: I do like my e-ink original Kindle display bit I have got so used to reading books on my phone that I rarely pick it up any more.
07:36 PM Loetmichel: andypugh: e-ink is really nice... but to slow for video
07:36 PM SpeedEvil: Backlight flicker depends on the backlight circuitry design, it is entirely possible to make non-visible PWM, or smooth the current. But this is not done for $, or lack of care reasons.
07:36 PM Loetmichel: for reading books/PDFs its great though
07:36 PM XXCoder: Loetmichel: https://www.indiegogo.com/projects/not-ereader-first-e-ink-mobile-phone-monitor#/
07:37 PM XXCoder: that ones fast enough. bit expensive tho
07:37 PM SpeedEvil: - it doesn't show on tests, and is not visible at high brightness in most office conditions, so is often neglected.
07:37 PM Loetmichel: SpeedEvil: so its the PWM. i once had a monitor that flickered visible on low settings... wasn ean easy fix though: 100N on the "dim" line and that flickering was gone
07:38 PM Loetmichel: so it was the brightness signal that was flickering, not the PWM circuit... hence me asking
07:38 PM andypugh: The odd thing is that the phone and the Kindle synch, so I can read the same book on both, but generally read on the phone, even if the kindle is less than a metre away. I don’t entirely understand why. Possibly convenienience of not swapping devices when a message comes in or I see a concept in the book that I absolutely have to look up on Wikipedia.
07:38 PM Loetmichel: 100nF
07:44 PM {HD}: Does 10tpi = 10 rev/in?
07:44 PM infornography: should
07:46 PM {HD}: I must have something else messed up then.
07:46 PM CaptHindsight: 400 x 400 pix in image2gcode is taking an eternity
07:48 PM {HD}: When I have my 10 tpi set it moves x2 as far as it should...
07:50 PM CaptHindsight: is your microstepping off by 2x?
07:51 PM {HD}: I believe my driver is set to 400 micro steps. And my motors are 1.8°. So I have my motor steps per revolution equal to 200 and my driver micro stepping equal to 2
07:51 PM CaptHindsight: using pulleys?
07:51 PM {HD}: Couplers to leadscrews
07:51 PM {HD}: So 1:1
07:53 PM CaptHindsight: sounds like your drive is not stepping 2:1 or your screw pitch is only 5tpi vs 10 tpi
07:53 PM CaptHindsight: easy enough to measure the screws pitch
07:54 PM CaptHindsight: which stepper driver are these?
07:54 PM {HD}: I just did...I have my thread gauge sitting right here.
07:54 PM {HD}: Geko clones
07:54 PM CaptHindsight: sometimes you don't see your own mistakes
07:55 PM CaptHindsight: have a link to the drives config switches
07:55 PM CaptHindsight: even worse with Chinglish instructions and ON means OFF
07:56 PM CaptHindsight: I have a drive where to turn off the charge pump you have to set it to ON
07:57 PM {HD}: https://i.imgur.com/8TR38RX.jpg
07:57 PM {HD}: Its right on the side of the driver but I cannot get my camera in there.
07:58 PM {HD}: 400 must not = 400
07:59 PM CaptHindsight: looks to me like you have it set to 200
08:00 PM CaptHindsight: 400= OFF ON ON ON
08:00 PM CaptHindsight: kind of fuzzy
08:01 PM infornography: I can't read that
08:02 PM {HD}: infornography: yea its right next to live wires so I am not going to reach in there.
08:02 PM CaptHindsight: looks like you are currently On On ON ON = 200
08:02 PM {HD}: The 1st number in that list is 400 but if it was supposed to be 200 then it adds up.
08:03 PM CaptHindsight: flip SW5 to OFF and lets see
08:03 PM CaptHindsight: golly jesus the CAM finished
08:05 PM {HD}: https://i.imgur.com/YDRkedm.jpg
08:05 PM {HD}: Had to change it to on off on on before it was right
08:06 PM {HD}: That doesn’t add up
08:12 PM {HD}: 400 must = 200 or something else in the config isn’t adding up.
08:13 PM CaptHindsight: Chinese clones rarely have accurate info
08:14 PM {HD}: https://i.imgur.com/wXgLHpA.jpg
08:16 PM {HD}: What should I set my micro-stepping to? 800 maybe more?
08:17 PM CaptHindsight: set it on the drive or in stepconf?
08:17 PM {HD}: On the drive.
08:18 PM CaptHindsight: do you have another stepper motor and drive you can test?
08:18 PM CaptHindsight: verify that it is a 200 step per rev motor
08:19 PM CaptHindsight: the scale setting in LCNC works
08:19 PM {HD}: Well it behaves the same for my 10tpi y axis too
08:19 PM CaptHindsight: you might be surprised but what you have for a motor and /or a drive
08:19 PM {HD}: So I think it must be the driver
08:20 PM CaptHindsight: the silkscreen table is likely not accurate
08:20 PM {HD}: Although I don’t remember having this problem on previous config.
08:57 PM pink_vampire: how do i calculate the acceleration in the ini file?
08:59 PM CaptHindsight: increasing it until you loose steps or stalls
08:59 PM CaptHindsight: lose/loose
09:08 PM commavir_ is now known as commavir
09:15 PM pink_vampire: i'm trying to make it work with a scope
09:30 PM XXCoder: hey
09:30 PM pink_vampire: hi XXCoder
09:31 PM {HD}: I feel like this is a bug. Listen to this...
09:31 PM {HD}: I set my driver to 400.
09:32 PM CaptHindsight: figured out how to work with image2gcode \0/
09:32 PM {HD}: Then I say motor steps per revolution to 400. Driver micro stepping to one. And the lead screw pitch to one.
09:32 PM XXCoder: way to go! CaptHindsight what did you figure out finally?
09:32 PM {HD}: Then when I set it to move 1 inch the motor spins one revolution.
09:32 PM CaptHindsight: installed flatcam also in the meantime
09:33 PM CaptHindsight: XXCoder: it was the safety distance that kept throwing me off or the models
09:33 PM XXCoder: ahh you set it higher or something?
09:33 PM CaptHindsight: the safety Z area shows up as an opaque area above the paths
09:34 PM CaptHindsight: NICE
09:34 PM CaptHindsight: blocks the view of wht the hell is actually going on
09:34 PM XXCoder: oh yeah. you could turn off rapids so you can see
09:34 PM CaptHindsight: when i used 0 all became clear
09:35 PM CaptHindsight: firkin rstabanging frumfurter
09:35 PM roycroft: do any of you have a belt grinder?
09:35 PM XXCoder: not me, but I do want one evenually
09:35 PM pink_vampire: no
09:35 PM roycroft: i'm trying to sort out what is a good maximum speed for the one i'm making
09:35 PM roycroft: i'm thinking 3000ft/min is probably good
09:36 PM roycroft: but with the setup i have now i can't get near that fast
09:36 PM XXCoder: ray does those belts say what its good for speed wise
09:36 PM CaptHindsight: I have a 12" wide belt sander that I use as a grinder at times
09:36 PM roycroft: i'm making a 2x72 grinder
09:37 PM CaptHindsight: 12 x 36 here
09:37 PM roycroft: actually, i just redid the calculation
09:38 PM roycroft: with the drive wheel i have now and the motor i have, i should max out at 2880ft/min
09:38 PM roycroft: cool
09:38 PM CaptHindsight: x2 so 12 x 72
09:38 PM roycroft: i don't want to spend $90 on another drive wheel when i have a brand new one already
09:39 PM roycroft: i'm tired of not having made this
09:39 PM CaptHindsight: mines geared down
09:39 PM roycroft: i bought the motor, vfd, and wheels for it two years ago
09:39 PM roycroft: and i've been using my wimpy little 1x48 grinder all this time
09:39 PM CaptHindsight: ~700 ft minute
09:40 PM roycroft: i have a vfd, capthindsight
09:40 PM roycroft: it can go slower no problem
09:40 PM XXCoder: rpy did you see those handheld belt sander?
09:40 PM roycroft: yes, i've seen those
09:40 PM XXCoder: one inch wide and I think loop is 2 ft or so?
09:40 PM roycroft: i'm making one based on jeremy schmidt's design
09:40 PM CaptHindsight: picked mine up from CL for $200
09:42 PM roycroft: i just hope i don't regret buying the motor that i did
09:42 PM roycroft: it's 2hp
09:42 PM roycroft: and a lot of the knifemakers are using 3hp motors
09:42 PM CaptHindsight: i found a bunch of 3-4K rpm brushed DC motors
09:42 PM roycroft: but the baldor belt grinder that i have now is 1/3hp
09:43 PM roycroft: so the 2hp one will definitely be an upgrade :)
09:43 PM roycroft: this motor is weird
09:43 PM roycroft: it's 2750rpm
09:43 PM roycroft: which is a very strange speed
09:43 PM roycroft: but oh well
09:43 PM roycroft: it's also rated for a vfd
09:43 PM roycroft: so i can spin it slow without letting the magic smoke out
09:43 PM * {HD} just broke his dial indicator stand.
09:44 PM roycroft: sounds like an opportunity to get a nice noga
09:45 PM {HD}: $100!
09:45 PM roycroft: amazing indicator holders
09:45 PM roycroft: you'll make up that $100 in saved time quickly
09:46 PM roycroft: i've decided to make a glass platen right away
09:47 PM roycroft: i don't see any point in making a steel one that i'll likely end up replacing soon
09:48 PM pink_vampire: {HD}: how did you manage to brake it?
09:50 PM {HD}: https://i.imgur.com/LOBUogF.jpg
09:51 PM pink_vampire: paper thin
09:51 PM pink_vampire: where it is go in the stand?
09:51 PM XXCoder: roycroft: noga is nice, I have deburr tools its nice
09:51 PM XXCoder: I dont have indictor base and arm, too epensive and shop has bunch of em anyway
09:52 PM {HD}: It was part of the thumbscrew that would hold the indicator on.
09:52 PM {HD}: I over tightened apparently
09:53 PM pink_vampire: LOL
09:53 PM pink_vampire: just make a new one with the cnc
09:53 PM XXCoder: you certainly did, I ca see steaching lol
09:53 PM XXCoder: you that famous star/former calfornia goverator?
09:55 PM roycroft: i have a small noga indicator holder
09:55 PM roycroft: i am going to get a larger one soon
09:56 PM XXCoder: my small one is pure chinseium one
09:56 PM pink_vampire: {HD}: https://i.imgur.com/6iz0HkP.png i made the brass part
09:58 PM {HD}: pink_vampire: that’s exactly what I need.
09:58 PM XXCoder: pink_vampire: make a bunch and sell on ebay or something?
09:58 PM pink_vampire: are you in the NY/NJ/PA area?
09:58 PM XXCoder: dunno if can make profit lol
09:59 PM pink_vampire: https://imgur.com/a/7Brr6ls
09:59 PM XXCoder: that is fanastic
09:59 PM pink_vampire: XXCoder: how much do you think i should sell it for?
10:00 PM {HD}: I am a few more states west than that.
10:00 PM XXCoder: no idea, certainly more money than material cost, machine time and your time
10:03 PM {HD}: Does Linux CNC have the calibration theater that Mark three has? The one where you say move an inch then you can tell it how far it actually moved and it does the calculations for you.
10:04 PM XXCoder: how does that work anyway
10:05 PM {HD}: ¯\_(ツ)_/¯
10:05 PM XXCoder: how does it get actual move data?
10:05 PM pink_vampire: XXCoder: the brass part allow you to connect a dial indicator from the back side
10:06 PM XXCoder: I know :)
10:06 PM roycroft: seems like you'd put something of a known dimension in the vise and touch off on both sides
10:06 PM {HD}: XXCoder: you measure it
10:06 PM roycroft: like a precision 1-2-3 block or a gage block
10:06 PM {HD}: Yep
10:07 PM XXCoder: cool
10:07 PM SpeedEvil: Does this count as safety wire? https://i.imgur.com/Kn5KMtu.jpg
10:07 PM {HD}: Classic
10:08 PM XXCoder: lol
10:08 PM XXCoder: why dont guy thread all bolts and use safety wire on that?
10:09 PM {HD}: The safety wired the wrenches on haha
10:15 PM {HD}: Ugh!!! Acme engagement points!
10:15 PM {HD}: 10tpi 2 starts!
10:15 PM XXCoder: ?
10:16 PM pink_vampire: your machine is metric?
10:16 PM {HD}: My math was wack because these acme rods are 2 starts.
10:17 PM {HD}: Does 2 starts = metric?
10:17 PM pink_vampire: no
10:17 PM XXCoder: 2 starts hm yeah that would mess with your math yes
10:18 PM {HD}: Can’t believe I didn’t remember that.
10:22 PM {HD}: My 1” = .998 is that good enough? I am tired of trying to calibrate this thing.
10:22 PM XXCoder: whats your case case anyway
10:22 PM XXCoder: *user case
10:23 PM pink_vampire: you are using acme screw, not ball screw - you ill get backless
10:23 PM XXCoder: backlash
10:23 PM pink_vampire: h
10:24 PM XXCoder: not if he sets preload stuff
10:24 PM XXCoder: or maybe just less
10:24 PM {HD}: Yes I have backlash compensation nuts in place.
10:24 PM {HD}: I have to measurable backlash. Just 1” doesn’t quite = 1”
10:24 PM XXCoder: do same measuring at various locations at your machine
10:25 PM XXCoder: if its same everywhere just adjust your steps per inch
10:25 PM {HD}: XXCoder: thats how the mach3 auto calibration worked.
10:25 PM XXCoder: also try move your machine by hand when its in holding see if you can move something around that may be source of backlash
10:25 PM XXCoder: ah cool
10:26 PM {HD}: Would be cool if linuxcnc had a similar tool.
10:26 PM XXCoder: new steps per mm = old steps per mm * ( commanded distance / actual distance)
10:27 PM XXCoder: change mm to inch
10:28 PM pink_vampire: I'm working with metric machine, but by tools are 80% imperial
10:30 PM {HD}: XXCoder: yep. I’ll try to calculate it further.
10:30 PM XXCoder: another 2 mail bombs found
10:31 PM XXCoder: dang'
10:31 PM XXCoder: wonder if its from same guy or different one
10:31 PM roycroft: that should slow down now that the maga bomber is in custody
10:31 PM XXCoder: yeah
10:31 PM XXCoder: people is still trying to make him into democrat
10:32 PM roycroft: i don't care what he is/was, as long as he's no longer able to perpetrate acts of terrorism
10:32 PM XXCoder: indeed. other side is people is also trying to say that he has mental illness. maybe it is, maybe it isnt
10:33 PM XXCoder: but whats annoying is that if white, its always mental illness, while darker its always terrorism
10:33 PM roycroft: there should be no "sides" to people's reaction to terrorism
10:34 PM XXCoder: yep, if someone sent bomb to trump, I would be against that person and call that person terrorist
10:34 PM XXCoder: because terrorist is a terrorist period
10:34 PM roycroft: correct
10:34 PM roycroft: there are bad members of almost any group of any appreciable size
10:35 PM XXCoder: I may hope trump die in most stupidest way possible but not assasated
10:35 PM roycroft: those bad members should not define the group
10:35 PM XXCoder: I figured out this law: Subgroup law: For any group or subgroup, there is a subgroups in it
10:36 PM XXCoder: because people is all unique, there is no exceptions
10:49 PM {HD}: None went off?
10:50 PM roycroft: if you're talking about the pipe bombs, my understanding is that they did not have detonaters
10:50 PM roycroft: that did not render them safe - just less likely to explode
10:51 PM XXCoder: fbi recently said it could have exploded but didnt say about deonators
10:52 PM roycroft: but instilling fear is a definition of terrorism, so even if they were only intended to scare people they're still very serious acts
10:53 PM roycroft: i read a report that said that, xxcoder, but i don't know the basis for the report
10:53 PM XXCoder: indeed
10:54 PM XXCoder: I dont know either
10:56 PM roycroft: director wray said "these are not hoax devices", but did not elaborate further
10:56 PM XXCoder: yeah
10:56 PM XXCoder: maybe still researching
10:57 PM XXCoder: those csi shows gives us too much expection of speedy solution within a day, with commerical breaks
11:00 PM roycroft: my primary interest in this whole situation was that the pepertrator be stopped as soon as possible
11:00 PM roycroft: and it appears that may have happened
11:00 PM roycroft: if there was a tie to a known terrorist group i'd also be interested
11:00 PM roycroft: but so far it appears to be a lone wolf nutcase
11:01 PM XXCoder: maybe though I really hate "lone wolf" as its been used even when white person is in a known hate group