#linuxcnc | Logs for 2016-09-11

[00:00:43] <Cromaglious_> -5.15mm
[00:04:46] <Cromaglious_> pausing for the night
[00:08:31] <Cromaglious_> uploading video to youtube robisydney channell
[00:08:47] <Cromaglious_> 4 minutes or so until its up
[00:11:54] <Erant> Crom: Euh. What do you need 1.5kW for?
[00:12:12] <Cromaglious_> 50% uploaded another 3 to 5 minutes
[00:12:28] <Erant> A 3040 is probably barely rigid enough for like... 150W
[00:13:31] <XXCoder> theres plenty of 500w for 3040s
[00:14:13] <Cromaglious_> don't need the 1.5kw... need the er20
[00:14:16] <Cromaglious_> and the bearings in the spindle
[00:14:46] <Cromaglious_> I have a 400w on it and I'm at like 25% power
[00:15:39] <Cromaglious_> the extra torque would be nice though
[00:16:16] <Cromaglious_> ok it's up
[00:17:49] <Erant> XXCoder: Sure, but you're never actually going to use that power.
[00:18:12] <XXCoder> yeah but same time I doubt I will cut more than wood and maybe light alum cutting
[00:18:13] <Cromaglious_> https://www.youtube.com/watch?v=Y0CDg84zSq4
[00:18:26] <XXCoder> I want spindle to be controllable by linuxcnc
[00:18:30] <XXCoder> still figuring that
[00:18:34] <XXCoder> using tb6560
[00:19:17] <Cromaglious_> I'm using TB6600 drivers
[00:19:29] <Erant> My micromill's a piece of shit, but it's more rigid than a 3040. Chugs along quite nicely with a 3/8" rougher at 1/3HP (250W)
[00:19:55] <Cromaglious_> listen to my video.. you hear all the chatter...
[00:19:59] <Kevin`> Cromaglious_: is that aluminum? sounds unusually horrible for aluminum
[00:20:12] <Kevin`> Cromaglious_: what depth is each tooth cutting?
[00:20:22] <Cromaglious_> Kevin`, it's not the AL it's the crappy spindle..
[00:20:28] <XXCoder> its perfectly quiet for me. sorry not very helpful heh
[00:20:37] <Cromaglious_> DOC is 0.35mm step over is 1mm
[00:20:48] <Erant> What's your RPM and feedrate?
[00:20:59] <Kevin`> Cromaglious_: I mean the radial cut
[00:21:19] <XXCoder> crom yours looks virtually same as mine
[00:21:21] <Cromaglious_> F100 and about 25% power... if I go lower on power it'll stall in the corners
[00:21:38] <XXCoder> only it has 52mm clamp, mine has 43mm one heh
[00:21:47] <Kevin`> Cromaglious_: you need to do the math on this one, it's probably spinning too fast and grinding instead of cutting
[00:21:53] <Cromaglious_> you clamp comes off mine doesn't
[00:22:01] <XXCoder> yeah
[00:22:06] <Erant> Cromaglious_: Any clue what 25% power means from an RPM perspective?
[00:22:17] <Cromaglious_> Kevin`, true.. but I can't go slower otherwise it stalls
[00:22:24] <Cromaglious_> nope
[00:22:31] <XXCoder> theres PLC controller board
[00:22:34] <Erant> Cromaglious_: You might want a higher feedrate.
[00:22:45] <XXCoder> uses PWM outpput and sensors to directly set spindle speed
[00:22:50] <Kevin`> Cromaglious_: you can use a faster feedrate. I wouldn't do so without knowing the numbers first though
[00:22:54] <Cromaglious_> keeping it low so I don't skip steps
[00:23:17] <Erant> The problem is your cutter's probably not cutting, but rubbing instead.
[00:23:18] <Cromaglious_> only 27v on the steppers
[00:23:23] <Kevin`> you can't use a low feedrate with a high speed spindle with a cutting tool
[00:23:35] <Erant> It needs some meat in order to cut.
[00:23:39] <Kevin`> it must take a minimum cut depth
[00:24:01] <XXCoder> crom you use PWM?
[00:24:02] <Erant> The DOC is also very low.
[00:24:05] <Cromaglious_> true.. I have a buttload of tooling in 1/8"
[00:24:27] <Cromaglious_> XXCoder, not at the moment... using the pot to control speed
[00:24:44] <XXCoder> hmm thought that IS pwm control
[00:24:54] <Erant> For a 1/8" tool, you should have something like a... 0.0005" feed per tooth?
[00:24:56] <XXCoder> whats you using for controller board?
[00:25:02] <Cromaglious_> if I go to a higher doc then I have to run a high rpm to prevent stalls
[00:25:05] <Kevin`> Cromaglious_: is that a dc spindle or induction?
[00:25:13] <Erant> Kevin`: It's DC
[00:25:14] <Cromaglious_> ebay 5 axis BOB
[00:25:31] <XXCoder> hmm ok
[00:26:22] <Kevin`> Cromaglious_: one of my first cuts in aluminum on chinese cnc. minimum safe speed because of poor clamping, but it's cutting properly here: https://www.youtube.com/watch?v=ABpNSbwSkOI
[00:26:56] <Kevin`> yours you'll probably have to run faster than that
[00:27:13] <Kevin`> or add servo speed control
[00:30:15] <Cromaglious_> http:://www.picpaste.com/1473570032988-130066421-R6Fit17m.jpg
[00:30:21] <Cromaglious_> http://www.picpaste.com/1473570032988-130066421-R6Fit17m.jpg
[00:30:33] <Kevin`> quoth the server, 404
[00:31:27] <Cromaglious_> picpaste sucks..
[00:33:08] <XXCoder> neither works
[00:33:44] <XXCoder> picpaste always works for me
[00:33:55] <XXCoder> you sure you clicked on picture link first?
[00:34:41] <Kevin`> Cromaglious_: you'd also likely benefit from air or vacuum while cutting, aluminum is nasty if it has nowhere to go
[00:35:12] <Kevin`> it can quickly go from cutting to friction welding
[00:35:24] <Cromaglious_> I give is a squirt from the air hose.. I did it during that video
[00:35:28] <Flipp_> anyone here use fusion 3360?
[00:35:41] <Flipp_> err, 360?
[00:36:32] <Kevin`> Cromaglious_: oh, and for the same reason, always climb cut unless you really have a reason not to
[00:38:43] <Cromaglious_> https://plus.google.com/photos/103866996421752978311/album/6328937562481921105/6328937569658383810?authkey=CJfMkYu57J28Ug&sqid=118113483589382049502&ssid=ded658fe-15b2-4328-8072-4d7daacd462b
[00:39:04] <Cromaglious_> some reason it posted to the K40 group
[00:41:35] <Cromaglious_> http://i.imgsafe.org/4e7cf7a2d4.jpg
[00:41:58] <XXCoder> Cromaglious_: cant be display because it ontains errors
[00:42:30] <Cromaglious_> imgsafe?
[00:42:42] <Cromaglious_> it came up on my computer
[00:42:59] <XXCoder> yeah
[00:43:32] <Cromaglious_> http://i.imgsafe.org/4e7d2da0f9.jpg
[00:43:48] <XXCoder> same errors
[00:44:02] <XXCoder> yours pictures may be corrupt
[00:44:20] <XXCoder> try open in picture editor and save it in different format, it may fix corruption
[00:45:44] <Cromaglious_> http://www.picpaste.com/4e7cf7a2d4__1_-bKUv8OyP.jpg
[00:47:00] <Cromaglious_> http://www.picpaste.com/4e7d2da0f9-juWJroZX.jpg
[00:48:13] <Cromaglious_> how about now?
[00:48:27] <XXCoder> works
[00:48:41] <Cromaglious_> Flipp_, I have used it.. do I understand it.... no not at the momemt
[00:49:35] <Cromaglious_> speed control is a 15amp lower left of the plexi lid
[00:50:14] <Cromaglious_> yes it's a work in progress
[00:52:56] <Flipp_> haha. thanks. was just wondering why my drawings weren't updating
[00:53:03] <Flipp_> ... then I found the icon at the top
[00:53:11] <Flipp_> dumb 4k screen making everything tiny
[01:07:15] <Erant> Welp, guess this is a good a time as any to start learning how to make my own milling cutters.
[01:07:35] <Erant> Wonder why woodruff cutters only seem to really come in 1/2" shank.
[01:08:12] <XXCoder> flip yeah big resolution isnt always best
[01:08:51] <Erant> Flipp_: You should be able to scale everything. Something something HiDPI
[01:14:09] <Flipp_> Cromaglious_: any chance you figured out how to dimension threads? XXcoder, ever done that?
[01:14:19] <Flipp_> (during a drawing, that is)
[01:14:31] <XXCoder> nope just know basics of 360
[01:14:34] <Flipp_> Erant: I usually like the high dpi... just not in this case :)
[01:14:52] <XXCoder> you happened to ask one of few questiosn I could kinda help lol
[01:15:07] <Flipp_> :D
[01:15:17] <XXCoder> I remember windows alpha that had all windows vector so you could resize and change dpi all you want
[01:15:25] <XXCoder> too bad it never amounted to anything. :(
[01:15:37] <XXCoder> rescaling dpi per window would make sense
[01:29:11] <Crom> sheeshz... wayne lapierre makes $927863 a year running the NRA
[01:55:26] <Cromaglious_> ok.. lower portion of receiver pocket ready for gcode generation. Now I have to get a 1/4" end mill long enough to reach the depth
[02:03:41] <Cromaglious_> just ordered 4 1/4" endmills $3.96 for all 4
[02:04:05] <Cromaglious_> 2.5" inchs long...
[02:15:37] <Crom> ugh I turn off snap to grid in heekscad and it crashes
[02:15:58] <XXCoder> thats heeks for you
[02:16:08] <XXCoder> you do anything slightly weird and it goes boom
[02:23:14] <Crom> yep
[02:24:13] <Deejay> moin
[02:24:45] <XXCoder> hey
[02:27:06] <Crom> ugh.. just figured out the good heeks file I was working didn't get saved... DAMN
[02:27:16] <XXCoder> :(
[02:27:22] <Crom> nite
[02:27:36] <XXCoder> later
[02:27:41] <Deejay> gnite chrom
[02:27:45] <Deejay> eh crom ;)
[06:03:42] <jthornton> morning
[06:04:00] <XXCoder> yo
[07:32:40] <zeeshan|2> hi
[07:32:41] <zeeshan|2> :P
[07:32:52] <XXCoder> hey the zeeshan|2
[07:32:56] <XXCoder> havent seen ya for while
[07:33:00] <zeeshan|2> :P
[07:33:46] <zeeshan|2> whats new
[07:33:51] <XXCoder> 3d printer lol
[07:34:04] <zeeshan|2> which one do you have
[07:34:06] <archivist> retrofitted that lathe yet zeeshan|2 ?
[07:34:07] <XXCoder> recently finished second benchy and its way better
[07:34:17] <XXCoder> pursa i3 2020 - chinese clone
[07:35:06] <zeeshan|2> no
[07:35:11] <zeeshan|2> but i pulled all the boards out of it
[07:35:15] <zeeshan|2> putting them on ebay right now
[07:36:52] <zeeshan|2> XXCoder: cool
[07:36:54] <zeeshan|2> how much?!
[07:37:25] <XXCoder> 240 bucks
[07:37:36] <XXCoder> its not fancy but works
[07:37:58] <zeeshan|2> nice
[07:38:00] <XXCoder> https://www.aliexpress.com/item/Full-Metal-Frame-3D-Printer-Professional-3d-Color-Printer-with-8GB-SD-Card-LCD-One-Roll/32705186296.html
[07:40:22] <zeeshan|2> does it work well?
[07:40:25] <zeeshan|2> got some sample prints?
[07:40:49] <XXCoder> sure sec though
[07:43:02] <XXCoder> okay lemme find pics
[07:43:27] <XXCoder> my stupid nylon/battery trick to get it to rotate on its own lol http://picpaste.com/IMG_20160909_153412-qW5B5Rr5.jpg
[07:43:31] <XXCoder> need a real holder...
[07:43:49] <XXCoder> http://picpaste.com/pics/IMG_20160909_170931-lp7m2cLO.1473466669.jpg
[07:44:17] <XXCoder> this is supposely clamp for my cnc router but it got bunch issues like wrong hole size and angle of print
[07:44:29] <zeeshan|2> not a bad surface finish
[07:48:48] <jthornton> can't hardly build that for $220
[07:49:03] <XXCoder> zeeshan|2: yeah though it had some issues I have fixed
[07:49:46] <zeeshan|2> ive been eyeing the rostock v2
[07:50:04] <jthornton> XXCoder: what software are you using to print?
[07:50:20] <XXCoder> slic3r this time
[07:50:25] <XXCoder> normally repitier
[07:56:54] <zeeshan|2> hmm
[07:57:01] <zeeshan|2> a local selling his kossel v2 for $1000
[07:57:09] <zeeshan|2> i offered lower, lets see :)
[07:57:16] <zeeshan|2> damn you XXCoder
[07:57:19] <zeeshan|2> making me spend moneys
[07:57:28] <XXCoder> lol sorry
[07:57:32] <zeeshan|2> ive been needing one
[07:57:38] <zeeshan|2> always been outsourcing
[07:57:42] <zeeshan|2> and getting raped :P
[07:59:41] <enleth> XXCoder: are you sure it's a good idea to print this part bracket down?
[07:59:57] <XXCoder> enleth: I did say that was one of errors
[08:00:05] <XXCoder> angle of print
[08:00:10] <enleth> ah, ok
[08:00:26] <zeeshan|2> print it till it breaks
[08:00:27] <enleth> I assumed you meant geometry errors or something
[08:00:36] <XXCoder> besides im not sure if it can handle cutting wood let alone alum lol so its on hold
[08:00:39] <XXCoder> that too
[08:00:42] <zeeshan|2> http://i.imgur.com/ijOGGLk.jpg
[08:00:53] <XXCoder> holes was too small, and the spindle would hit Z assembly oops
[08:00:53] <zeeshan|2> fanuc boards arent as pretty as heidenhain
[08:00:54] <zeeshan|2> :P
[08:00:56] <enleth> anyway, yeah, this printout depends on bonding between layers, which is never a good idea
[08:01:17] <XXCoder> yah it was already halfway there so I left it
[08:01:28] <XXCoder> it was good idea to test stuff anyway
[08:01:35] <XXCoder> as I found few issues as I menioned
[08:02:03] <enleth> zeeshan|2: same shit, a ton of 74 chips doing address decoding
[08:02:19] <zeeshan|2> LOL
[08:02:19] <enleth> doesn't seem hand-drawn though
[08:02:41] <XXCoder> http://picpaste.com/badchair-vsxIdCt8.jpg it failed heh
[08:02:54] <XXCoder> one of leg fell a little but as you can see it failed to bridge properly
[08:31:40] <zeeshan|2> man its so nice to be able to drive the rx7
[08:31:44] <zeeshan|2> thing is so fast
[08:31:55] <zeeshan|2> based on how much fuel its using , its prolly around 700hp
[08:32:05] <zeeshan|2> all that 700 hp needed to move it out of the garage so i can work on the lathe
[08:33:04] <jthornton> cool
[08:35:19] <zeeshan|2> http://i.imgur.com/2k6jVgB.png
[08:35:23] <zeeshan|2> thing tuning a servo is hard?!? :P
[08:35:27] <zeeshan|2> tune a car!
[08:50:57] <gregcnc> zeeshan|2 already saw a video of your rx7 https://youtu.be/RdjMF1JP4Us
[08:51:17] <zeeshan|2> gross rotary
[08:51:18] <zeeshan|2> ;{
[08:51:40] <gregcnc> oh that right you butchered it
[08:52:02] <gregcnc> coronary transplant
[08:52:22] <zeeshan|2> twin turbo v8
[08:52:24] <zeeshan|2> only way to go
[08:54:12] <MacGalempsy> mornin
[09:47:14] <JT-Shop> morning
[09:48:36] <MacGalempsy> :) how did the roof repair go?
[09:48:50] <MacGalempsy> zeeshan-shop: yo dude
[09:49:53] <JT-Shop> roof repair?
[09:50:14] <MacGalempsy> the leak in the shop roof
[09:53:39] <JT-Shop> oh, yea the air does not leak into the shop now all plugged up with some foam boards
[09:56:26] <zeeshan-shop> hi mac
[09:56:27] <zeeshan-shop> :P
[10:06:51] <MacGalempsy> zeeshan-shop: how did the headers come out?
[10:07:01] <MacGalempsy> https://www.flickr.com/photos/58181938@N03/29316740440/in/dateposted-public/
[10:07:52] <MacGalempsy> are you raci....i mean driving again?
[10:09:47] <zeeshan-shop> good :)
[10:13:54] <MacGalempsy> zeeshan-shop: got to get a 30amp breaker installed before installing that beast
[10:14:23] <MacGalempsy> thought the panel was full, but there are several spots left
[10:16:35] <zeeshan-shop> very nice
[10:16:42] <zeeshan-shop> POWER!
[10:17:51] <MacGalempsy> it comes with some tooling, so time to make some square holes
[10:24:37] <Tom_itx> whasup today?
[10:25:11] <MacGalempsy> mimosas and youtube videos
[10:25:15] <MacGalempsy> u?
[10:25:33] <Tom_itx> not much
[10:27:41] <Tom_itx> just checking this code over for errors
[10:32:52] <MacGalempsy> spent the other day reorganizing the garage...next will be moving the computer workstation into the livingroom
[10:33:19] <JT-Shop> Tom_itx: programming in basic?
[10:33:20] <Tom_itx> that may require management approval
[10:33:26] <Tom_itx> JT-Shop, clipper
[10:33:42] <MacGalempsy> the management said it was cool, she actually encouraged it
[10:33:50] <Tom_itx> a compiled pascal type language
[10:35:33] <archivist> ew clipper
[10:36:14] <archivist> I had to reverse a clipper program for a court case
[10:37:09] <nubcake> Msg nickserv identify Roflcopter15
[10:37:22] <MacGalempsy> hehe
[10:37:26] <archivist> another new password needed
[10:37:27] <nubcake> K .. fml
[10:37:29] <malcom2073> you should probably change your password :)
[10:37:32] <nubcake> :D
[10:37:38] <malcom2073> Awesome password though
[10:37:49] <MacGalempsy> lol. i do that in the server window now. had the same thing happen before
[10:38:05] <malcom2073> SASL man!
[10:38:28] <archivist> I let xchat do it for me
[10:38:41] <MacGalempsy> https://www.youtube.com/watch?v=uWWd4hSi3UA
[10:38:49] <MacGalempsy> very cool
[10:38:51] <nubcake> Shit happens..
[10:38:55] <nubcake> :D
[10:39:26] <nubcake> Damn Android Client corrected the / away..
[10:44:27] <nubcake> Brb
[11:07:03] <_methods> i guess roflcopter1-14 suffered similar fates
[11:07:16] <nubcake> nah i just picked the number randomly
[11:07:24] <_methods> hehe
[11:07:30] <nubcake> worked like a charm for years, now android betrayed me :(
[11:07:56] <_methods> roflcopter crash
[11:08:23] <nubcake> kind of, but it was about time to get a new password anyways
[11:08:39] <nubcake> by the way, is anyone here familiar with the 3040 china machines? i'm trying to replace the parallel-port board with a "mach3 interface board" (http://www.lakos.fs.uni-lj.si/images/Predmeti/RIP/2015/Breakout-Board-Manual.pdf) but i'm not sure about the wiring of the stepper drivers as there's 2 different connectors for them on the new board. (images from old and new controller are uploading
[11:08:40] <nubcake> at the moment)
[11:09:08] <MacGalempsy> what is mach3?
[11:09:45] <archivist> a cock up
[11:10:08] <nubcake> a windows cnc software, i'm using linuxcnc, but the parallel-board they built-in the box doesn't name the pin-out and where to connect what kind of stuff and such, thus i got the "mach3 board"
[11:10:37] <archivist> in a parallel universe it claims to be a cnc control but is unable to screw cut properly
[11:11:56] <archivist> nubcake, I use a few of those BOBs
[11:12:55] <nubcake> last image is uploading right now, i'll paste the link once it's done
[11:13:05] <CaptHindsight> nubcake: is the pdf you posted the new or old BOB?
[11:13:11] <nubcake> the pdf is the new one
[11:13:23] <archivist> nubcake, I stored the docs I found at http://www.collection.archivist.info/archive/mirror/cnc/bob/
[11:13:55] <CaptHindsight> nubcake: you probably want to use the screw terminals
[11:14:05] <nubcake> archivist, thanks that helps alot :)
[11:14:06] <CaptHindsight> the 4 pin connectors are optional
[11:14:31] <CaptHindsight> I have board siting in front of me
[11:14:52] <pink_vampire> XXCoder: i saw the spindle holder that you print - it's look very nice
[11:14:56] <nubcake> ok, now i just got to figure which of the 3 wires on the stepper drivers to connect to which screw connector
[11:14:57] <CaptHindsight> +that
[11:15:47] <CaptHindsight> nubcake: that depends on what LPT pins your signals are on
[11:16:00] <archivist> nubcake, you can vary what you do because linuxcnc it configurable too
[11:16:12] <archivist> it/is
[11:16:53] <nubcake> ok, uploads are done, is it ok if i post 8 links in here? the website didn't provide a gallery feature :(
[11:17:05] <archivist> get one motor running, rest becomes easy
[11:17:40] <nubcake> yeah, just a little anxious of killing something ^^
[11:17:56] <nubcake> http://www.directupload.net/file/d/4475/z99a65of_jpg.htm this is the old board
[11:18:00] <archivist> not easy to kill stuff
[11:18:15] <nubcake> http://www.directupload.net/file/d/4475/fxk3x4mj_jpg.htm old board 2nd angle
[11:18:56] <archivist> a bit spam laden that site
[11:19:31] <nubcake> kind of :/ usually i don't upload a lot of images to the web so i didn't know which one to chose
[11:19:55] <archivist> can be better to ask the real question sometimes
[11:21:08] <nubcake> i just wonder why there's 4 pins on the white connectors and only 3 screw-connectors for the axis
[11:21:21] <JT-Shop> imagebin.ca is a good one if it is not down
[11:21:28] <CaptHindsight> in which config do the pins out for the LPT end up? config ini or hal?
[11:21:36] <archivist> because you connect the optos to +5 common
[11:23:50] <nubcake> oh ok
[11:24:23] <pcw_home> JT-Shop: that reminds me what the 5i25/7i92 bstech pinout is for....
[11:25:49] <archivist> nubcake, made more obvious on http://www.collection.archivist.info/archive/mirror/cnc/bob/$_58.JPG
[11:26:31] <nubcake> archivist: already checkin that one out, thanks
[11:28:00] <CaptHindsight> nubcake: your HAL file will list each Step and Direction pin for each axis on the LPT port
[11:28:56] <nubcake> CaptHindsight: thank you :)
[11:29:18] <JT-Shop> pcw_home: what is if for?
[11:29:28] <CaptHindsight> nubcake: the diagram is useless if you don't know what signal goes to what LPT pin
[11:29:32] * JT-Shop needs to make a cheat sheet
[11:30:16] <CaptHindsight> nubcake: the diagram assumes that you are using some default config
[11:30:50] <nubcake> CaptHindsight, yes, but if i stick to the mach3 config example, it should turn out to be the pins specified in the manual, shouldn't it?
[11:31:17] <CaptHindsight> nubcake: if you didn't make any changes
[11:31:17] <archivist> never assume :)
[11:31:42] <nubcake> i dont make any changes if the manual tells me to connect stuff to pin x-y then i'll connect that to pin x-y ^^
[11:32:18] <nubcake> i was just a bit confused about the white connectors with 4 pins and stuff
[11:32:23] <CaptHindsight> nubcake: how did you create your ini and hal files for Linuxcnc?
[11:32:45] <nubcake> by telling it the pins and their use from the manual that i got with the machine
[11:32:50] <CaptHindsight> use stepconf?
[11:32:54] <nubcake> yes
[11:33:22] <CaptHindsight> the manual had config instructions for linuxcnc? that's new
[11:33:32] <nubcake> no, it had instructions for mach3
[11:33:37] <pcw_home> JT-Shop: the Blue Sky tech 5 axis breakout in the link above
[11:34:17] <nubcake> but still, if mach3 uses pin (just an example) 15 for x-step and 16 for x-dir, linuxcnc wouldn't do otherwise, so i just used those settings for stepconf in linuxcnc
[11:34:22] <JT-Shop> ah thanks
[11:34:25] <CaptHindsight> nubcake: but are you using Linuxcnc or mach3, the LPT doesn't save the config
[11:35:04] <CaptHindsight> nubcake: post your HAL file
[11:35:26] <nubcake> CaptHindsight: i dont have it yet since i didn't swap the two LPT boards yet
[11:35:51] <nubcake> plus i didn't check yet, if they use any different pin-layouts
[11:36:00] <CaptHindsight> nubcake: are you thinking that your config and setup for Mach3 will somehow carry over the Linuxcnc?
[11:36:09] <CaptHindsight> the/to
[11:36:53] <nubcake> CaptHindsight: i had the cnc running on linuxcnc with the old board. i checked the pin-layout the manufacturer specified for mach3 -> used the pins for linuxcnc (stepconf) it worked because why shouldn't it ?
[11:37:47] <nubcake> now i disconnected the old board after taking photos for reference, but did not yet connect/assemble the new one, so i dont have a config for it
[11:39:22] <CaptHindsight> nubcake: if you decided to use the pin layout from mach3 docs for stepconf then the signals on the LPT and BOB should match the docs
[11:40:36] <nubcake> well, that's what i just tried to say (i'm no native english speaker, so it's not that easy for me) i used the docs on my 1st board, got it working, now i'm going to do the same for my new board with the new docs, i just wanted to make sure i dont do anything wrong because i was wondering about those white 4pin-connectors
[11:41:01] <nubcake> but archivist does have the same board in his link, so i can use that as a reference
[11:41:02] <CaptHindsight> no problem just clarifying so that you get your machine working
[11:41:11] <nubcake> and just apply the pin-layout to my config :)
[11:41:31] <CaptHindsight> lots of people lead us on wild goose chases
[11:41:35] <nubcake> CaptHindsight: i didn't want to sound offensive.. if i did, i'm sorry :) i just can't explain stuff that good
[11:42:10] <CaptHindsight> it's all part of the service
[11:42:51] <nubcake> be right back really quick, girlfriend brought some food :)
[11:43:07] <nubcake> thanks again for the help :)
[13:03:46] <pfred1> where's Waldo? http://i.imgur.com/s4hMwTG.jpg
[13:23:46] <gregcnc> what's the most practical way to save tools from water damage?
[13:23:57] <pfred1> WD-40
[13:24:04] <gregcnc> currently drying a huge fucking messs
[13:24:15] <pfred1> though frog lube is probably the best way it just isn't as practical
[13:24:42] <pfred1> WD-40 just spray it on can't be easier
[13:25:02] <pfred1> I get it by the gallon jug
[13:25:18] <pfred1> they I use a pump spray bottle
[13:25:24] <pfred1> then i use even
[13:25:45] <pfred1> it is so humid here everything rusts in a year if I don't keep after it
[13:26:45] <pfred1> but since I've been using WD-40 like it is going out of style I have been pretty much stayign ahead of the metal cancer
[13:26:59] <_methods> i keep dessicant packs in all my tool box drawers
[13:27:21] <pfred1> they'd be soggy in a night here
[13:27:36] <pfred1> here the humidity can hit 100%
[13:27:55] <pfred1> then water droplets just form in the air and fall out
[13:27:57] <archivist> I use a bit of wd40 and occasionally have a session at the wire brush
[13:28:38] <pfred1> archivist I wire wheel the used tools i buy they always have a layer of rust on them
[13:29:11] <pfred1> I just spent all day yesterday and half of today wire wheeling stuff
[13:31:25] <pfred1> gregcnc you using fans with your clean up?
[13:31:35] <JT-Shop> http://www.mcmaster.com/#rust-inhibiting-paper/=144h8zn
[13:33:03] <pfred1> moving air is another trick with condensing atmosphere
[13:37:09] <FloppyDisk525> I heard some guys use some type of wax and rub it on, haven't tried it myself, but was thinking I might.
[13:38:21] <FloppyDisk525> I heard about evapo-rust and have tried it, works great
[13:38:21] <FloppyDisk525> http://www.walmart.com/ip/32OZ-EvapoRust-Remover/38692066?wmlspartner=wlpa&selectedSellerId=1074&adid=22222222227026964012&wl0=&wl1=g&wl2=c&wl3=56093344209&wl4=pla-88700477049&wl5=9032020&wl6=&wl7=&wl8=&wl9=pla&wl10=112561796&wl11=online&wl12=38692066&wl13=&veh=sem
[13:38:27] <nikre> how can i filter the noise on a limit switch? capacitor?
[13:38:47] <pfred1> debounce circuit
[13:39:02] <nikre> ty let me google it
[13:39:08] <pfred1> though software can do sofr debouncing
[13:39:13] <pfred1> soft even
[13:39:42] <pfred1> it has been a while but I think a switch debounce circuit is basically a JK flip flop?
[13:40:05] <pfred1> it just locks on the first pulse and holds it
[13:40:44] <pfred1> I know there's a circuit in Don Lancaster's TTL Cookbook
[13:40:52] <nikre> isnt that also prone to noise?
[13:41:15] <archivist> a capacitor/resistor for basic filtering
[13:41:17] <pfred1> when a mechanical switch closes the contacts bounce before they settle
[13:41:17] <nikre> i will check the circuit ty again
[13:41:42] <pfred1> actuating a switch actually causes the switch to make, and break thousands of times
[13:41:56] <pfred1> that's called switch bounce and it is considered noise too
[13:42:43] <pfred1> because high speed electronics pick up every opening and closing as a switch event
[13:43:35] <pcw_home> The software debounce circuit is the approximate electrical equivalent to a a RC filter followed by a Schmitt trigger
[13:43:59] <pcw_home> (linuxCNCs debounce component I should say)
[13:44:05] <pfred1> I used a Schmitt inverter to clean up the signals coming otu of my optocouplers
[13:44:17] <pfred1> bad rise time
[13:44:29] <nikre> i will use linuxcnc's option first
[13:44:41] <pfred1> yeah software debounce works
[13:47:22] <FloppyDisk525> that Kraft paper is pricy... A few sheets would be nice, but looks like sold in bulk...
[13:48:50] <zeeshan|2> what do you guys think of the rostock max v2?
[13:49:37] <pfred1> I neve heard of it
[13:51:43] <MacGalempsy> zeeshan|2: I hear it is a good printer
[13:51:51] <zeeshan|2> hm
[13:52:07] <MacGalempsy> from seemecnc?
[13:52:10] <zeeshan|2> yes
[13:52:17] <zeeshan|2> i found one local
[13:52:22] <zeeshan|2> for a decent deal
[13:52:24] <zeeshan|2> 600 bux
[13:52:28] <zeeshan|2> hes got some additional mods
[13:52:34] <zeeshan|2> has no time for it anymore
[13:53:27] <MacGalempsy> from what I understand the deltas are more for artwork and cartsian printers are good for hardware
[13:53:42] <zeeshan|2> it has a pretty huge print volume
[13:53:43] <zeeshan|2> 11" diameter
[13:55:36] <MacGalempsy> check the reprap channel and ask there
[14:01:43] <JT-Shop> I thought something is messed up now, I rotated a part and cut it out and the cut was terrible and you could see overheating at the edges... could rotating cause that?
[14:01:55] <JT-Shop> nope, forgetting to enable the thc does
[14:02:12] <pfred1> THC? You toking over there?
[14:18:15] <JT-Shop> I thought I was hallucinating... cause an identical part of the opposite hand came out wrong...
[14:19:15] <JT-Shop> had to reverse the sheetmetal direction in sw
[14:19:59] <Cromaglious_> -5.5mm begins
[14:20:31] <CaptHindsight> deltas are great for pick-n-place
[14:25:57] <Cromaglious_> -5.85mm starts
[14:34:13] <Cromaglious_> -6.2mm start
[14:37:02] <Cromaglious_> 10mm to go
[14:42:31] <Crom_> -6.45mm start
[14:43:55] <Crom_> err -6.55mm start
[14:46:10] <pfred1> metric is corn fuzing
[14:50:58] <Tom_itx> nearly as much inchez and foots
[14:52:49] * JT-Shop eats his first cup of Greek yogurt
[14:53:06] <MacGalempsy> ever??
[14:53:30] <JT-Shop> yep
[14:53:59] <Tom_itx> and?
[14:54:16] <pfred1> Tom_itx we used feet to land on the Moon
[14:54:20] <JT-Shop> not bad
[14:54:29] <Tom_itx> not good either...
[14:54:39] <JT-Shop> a bit tart but hey I used love giant sweet tarts
[14:55:01] <os1r1s> Tom_itx Do you have a common ground bus or a common power bus for connecting all the switches on your machine?
[14:55:19] <Tom_itx> i tried to do a common ground
[14:55:31] <pfred1> star ground
[14:55:35] <Tom_itx> yeah that
[14:55:42] <os1r1s> I'm trying to figure out what type of connectors I can use to do that
[14:55:55] <pfred1> I just took a strip of copper and tapped it
[14:55:55] <os1r1s> Do you know if there is a common one that is used?
[14:56:04] <Tom_itx> i ended up getting some of those strips from pcw
[14:56:19] <os1r1s> Tom_itx strips?
[14:56:21] <Tom_itx> screw terminal strips
[14:56:52] <pfred1> I guess i made my own homemade terminal strip?
[14:56:56] <os1r1s> Tom_itx hmm. Not the green ones that go on the mesas?
[14:57:02] <Tom_itx> yes
[14:57:09] <Tom_itx> but on a pcb by themselves
[14:57:25] <pfred1> I mounted mine on a piece of plastic cutting board
[14:57:29] <os1r1s> Oh, hmm
[14:57:31] <os1r1s> That would be nice
[14:57:41] <os1r1s> Does PCW have that listed on the site?
[14:58:37] <Tom_itx> somewhere
[14:58:43] <pfred1> when I get my last new motor drive I have to redo all of my wiring then
[14:59:06] <os1r1s> Tom_itx I will have to look. That would be awesome
[14:59:24] <pfred1> you could just jamb a bunch of wires into a butt splice
[14:59:43] <Tom_itx> http://store.mesanet.com/index.php?route=product/product&path=74_80&product_id=230
[14:59:44] <os1r1s> pfred1 I did jam a bunch into one of the screw terminals on my mesa breakout
[14:59:48] <os1r1s> But that is pretty ghetto
[14:59:50] <os1r1s> :)
[15:00:01] <pfred1> my setup is as ghetto as they come
[15:00:11] <pfred1> I never did take a picture of it it looks that good
[15:00:19] <Tom_itx> it may be split in the middle for + -
[15:00:42] <pfred1> but what the hey, it works
[15:01:16] <os1r1s> Tom_itx Does that fit on the din adapter?
[15:01:26] <pfred1> I've had issues with the mechanics but my electronics has always worked for me
[15:01:27] <Tom_itx> i think so
[15:01:32] <Tom_itx> i didn't use one for mine
[15:01:34] <os1r1s> Oh, that would be awesome
[15:01:42] <Tom_itx> i know who knows :D
[15:01:50] <os1r1s> haha
[15:02:21] <os1r1s> Tom_itx Are you partial to mechanical or optical switches?
[15:02:46] <pfred1> what about hall switches?
[15:03:20] <pfred1> hall sensors?
[15:04:17] <os1r1s> pfred1 Well, I have mechanical and optical on hand :)
[15:05:29] <pfred1> I've messed around with optical a little
[15:05:49] <pfred1> to get a clean signal out of them is not exactly cut and dried
[15:06:45] <pfred1> optical devices have slow rise times
[15:07:00] <SpeedEvil> depends on the device
[15:07:21] <pfred1> even the "ultra fast" ones ain't too lickety split in my experience
[15:07:46] <SpeedEvil> I've just been playing with 80MHz opto designs :)
[15:07:50] <pfred1> now come optocouplers have built in electronics to clean them up
[15:08:01] <pfred1> now some even
[15:08:14] <SpeedEvil> (LASER ranger actualy
[15:08:17] <pfred1> they're not jsut a diode and a transistor
[15:08:37] <pfred1> they can be fast
[15:09:38] <pfred1> I think they have a comparator in them that just cuts in, and out
[15:24:59] <Crom_> just start -8.3
[15:27:42] <Flipp_> anyone here a guru with Fusion 360? got a question about dimensioning a drawing
[15:43:29] <Crom_> -9mm
[15:49:25] <pfred1> Uzi 9mm
[15:49:59] <gregcnc> forkin A this sucks, lathe is wet, toolholders, random drawers in my toolbox flooded, kitchen floor will probably have to be replaced.....
[15:50:11] <SpeedEvil> gregcnc: :/
[15:50:31] <Nick001-shop> <JT-Shop> you around?
[15:50:43] <pfred1> phased plasma rifle in the 40 Watt range
[15:50:58] <SpeedEvil> gregcnc: much of lathe?
[15:51:26] <pfred1> gregcnc fans dry water
[15:52:00] <SpeedEvil> Only if there is nonsaturated air
[15:53:10] <SpeedEvil> Throw rice on it.
[15:53:13] <SpeedEvil> (do not do this)
[15:57:43] <Crom> wooo found a 400w 52mm body er16 spindle dc
[15:59:15] <SpeedEvil> $?//
[15:59:27] <Crom> $90 incl shipping
[16:01:53] <Crom_> at -9.7mm
[16:13:56] <Crom_> -10.05mm
[16:15:39] <Crom_> -10.4mm
[16:18:28] <JT-Shop> off and on
[16:20:10] <Crom_> noisey...
[16:22:38] <Nick001-shop> Got a question on the Hardinge
[16:24:09] <Nick001-shop> I see connections for rough and finish axis homing, but not how to do it in ini file. What did I miss?
[16:25:38] * JT-Shop fires up the CHNC to get the relevant parts of the ini file and hal file
[16:26:20] <JT-Shop> I guess I need to reboot to make it show up on my lan...
[16:27:44] <Nick001-shop> I was looking at your wiring connections
[16:28:30] <JT-Shop> Failed to retrieve share list from server: Connection refused
[16:28:37] <JT-Shop> wonder whats up with that
[16:30:06] <JT-Shop> ah there is a copy of the hardinge on the nas
[16:31:37] <Deejay> gn8
[16:31:50] <JT-Shop> http://paste.ubuntu.com/23166461/
[16:32:48] <JT-Shop> IIRC I conneced the coarse switch to the home input... let me see if I can find that paperwork
[16:35:14] <JT-Shop> according to my prints I connected x coarse to in14 on 7i37 card 1 and x fine to in 12 of the same card
[16:35:58] <JT-Shop> so gpio.038.in_not is the x coarse input
[16:36:34] <JT-Shop> and I didn't use the x fine input anywhere
[16:38:13] <Nick001-shop> OK- so your using only 1 home switch to home the axis.
[16:40:37] <JT-Shop> and the encoder index
[16:41:09] <Nick001-shop> the fine input is on the lead screw assembly, so it will home once every turn. Coarse switch is at a fixed location
[16:41:10] <Nick001-shop> Using the resolver
[16:43:01] <JT-Shop> so you don't have encoders?
[16:43:52] <JT-Shop> you have a CHNC or a HNC?
[16:45:28] <Nick001-shop> CHNC with original resolvers.
[16:45:47] <JT-Shop> mine is a CHNC 1 with original encoders
[16:46:09] <JT-Shop> might want to talk to cradek about how he did his HNC IIRC he has resolvers
[16:46:52] <Nick001-shop> Later machine that min. the ones with GE and AB controls have resolvers.
[16:47:04] <Nick001-shop> min/mine
[16:48:15] <Nick001-shop> I know ssi did one-but he's not around - did he get a real job?
[16:49:41] <JT-Shop> must have
[16:52:00] <JT-Shop> I think andy has some machines with resolvers as well
[16:56:55] <Nick001-shop> I'll have to ask when he's online. At least I'm getting closer to actually start connecting stuff up and hopefully not smoke anything.
[17:01:55] <JT-Shop> and that is a good thing
[17:01:58] <JT-Shop> can you jog it?
[17:05:37] <Nick001-shop> Not that far along - Having terminology issues so far, but I'm sure things will move as soon as I put some power to the motors. I had to learn how an AMC driver works and worked with tuning it with a test stand situation.
[17:06:40] <JT-Shop> that makes it fun
[17:06:45] <Crom_> at -12.5mm
[17:07:01] <JT-Shop> I can't think off hand how one might use two homing inputs...
[17:07:24] <Nick001-shop> I just hope the axis motor will work with 48v rather than 90v to keep the moter sunning slow till I make sure polarities are correct
[17:08:12] <Nick001-shop> I havent found it with Linuxcnc bur the AB control does it.
[17:08:29] <Nick001-shop> bur/but
[17:11:21] <Nick001-shop> x axis uses a micro switch for rough and a hall switch for fin on the resolver and tach assembly which you can rotate to move the finish home position a little.
[17:15:09] <JT-Shop> I'm sure there is a way, I just don't have a clue
[17:15:32] <JT-Shop> I've never set up a resolver, but I have installed servos that used them in closed loop
[17:15:54] <JT-Shop> new press brake is sweet and worth the work
[17:16:45] <Nick001-shop> I'll just use the rough switches for homing like I did with the Pico conversion on the first Hardinge
[17:18:10] <JT-Shop> did you see my mdi commands and buttons to switch tools?
[17:18:59] <t12> http://imgur.com/a/Q8WqK
[17:19:03] <Nick001-shop> Yes - I used them on the first machine and they work well.
[17:19:34] <cradek> Nick001-shop: the mesa firmwares have a feature called "index mask" and you should hook the fine home switch to that, to select one "home" (resolver zero) per screw rotation
[17:19:54] <cradek> then treat the coarse homing switch on the axis as your regular home switch
[17:20:37] <cradek> because of the gearing, there are many resolver zeros per screw rotation otherwise, too many to be sure which one you'll get using just the coarse home switch
[17:21:07] <JT-Shop> so you can use the resolver zero like an encoder index?
[17:21:13] <cradek> yep
[17:21:15] <Nick001-shop> Is there any documentation for this?
[17:21:16] <cradek> isn't it awesome?
[17:21:18] <JT-Shop> nice
[17:21:26] <cradek> ummm
[17:21:33] <cradek> I bet the mesa docs mention index mask
[17:22:23] <Nick001-shop> I'll have to reread the 7i49 docs
[17:22:39] <cradek> aha, some firmwares have IM in the name - that means index mask
[17:24:33] <Nick001-shop> Oh great - more terminology to confuse me which lately isn't hard to do -(
[17:24:55] <JT-Shop> I'm not seeing any with im in the name...
[17:24:56] <cradek> http://psha.org.ru/irc/%23emc/2012-03-23.html
[17:25:04] <cradek> so it seems we talked about this years ago
[17:25:36] <cradek> guess you could 'and' the home switches
[17:26:24] <cradek> I think the answer is you'll have to ask peter about index mask for resolvers
[17:26:41] <cradek> that's really the ideal solution
[17:27:10] <Tom_itx> 0
[17:27:16] * JT-Shop wanders to the deck is it beautiful outside
[17:27:21] <nubcake> good night :)
[17:29:06] <Nick001-shop> I'll have to look at ssi's files again to see what I can find
[17:38:02] <Crom_> -13.55mm
[17:41:21] <Crom_> starting -13.9mm pass
[18:02:08] <Crom> at -14.6
[18:06:45] <Crom_> just started 14.95
[18:06:49] <Crom_> just started -14.95
[18:17:15] <Crom_> just started -15.3mm
[18:23:12] <Crom_> just started -15.65mm
[18:24:12] <Crom_> cutting entire bottom now.. I had a bit where the read take down pin had a pocket.. below that floor now
[18:24:22] <Crom_> s/read/rear/
[18:26:03] <Crom_> hmm running about 15% power right now
[18:27:11] <Crom_> running about 60% speed change when it bogs down
[18:31:46] <Crom_> just started -16.00mm
[18:41:19] <Crom_> final pass at -16.02mm
[18:55:21] <Crom> done with roughing...
[18:55:39] <Crom> now x and z won't jog in + direction
[18:58:36] <XXCoder> weird
[18:58:47] <XXCoder> something jamming?
[19:02:00] <Crom> dunno
[19:02:39] <XXCoder> if it changed it may be chips on screws or blocks
[19:02:54] <Crom> gotta clean off the 3040 and the table, then start trouble shooting
[19:03:22] <XXCoder> also troubleshooting my printer
[19:03:28] <XXCoder> http://picpaste.com/IMG_20160911_065512-A7NXXYLy.jpg
[19:03:35] <XXCoder> it sucks on bridging lol
[19:10:14] <pfred1> The requested URL /IMG_20160911_065512-A7NXXYLy.jpg] was not found on this server.
[19:10:46] <pfred1> wholly crap thy're still running Lenny on that server
[19:10:47] <Crom> poopy chair!
[19:11:24] <pfred1> I thought i was running an ancient version with Wheezy over here they'er making me feel cutting edge
[19:12:08] <XXCoder> lol pf
[19:12:16] <XXCoder> Crom: yeah infill fail
[19:13:01] * pfred1 has it going on http://i.imgur.com/lERHid8.jpg
[19:14:03] <pfred1> lenny was a sweet release though I really enjoyed running it
[19:14:38] <enleth> is there actually a noticeable difference between debian releases?
[19:14:46] <enleth> other than systemd screwing up the recent ones
[19:14:54] <pfred1> enleth it is subtle usually
[19:15:02] <pfred1> I won't upgrade from this because of systemd
[19:15:42] <pfred1> who am I fooling as long as it runs i never upgrade
[19:17:19] <pfred1> this system will go to its grave with this configuration on it
[19:18:51] <Crom> ok 1/8" end mill minimum y is -6.97mm
[19:19:20] <pfred1> I need a new collet for my router
[19:19:32] <pfred1> it is 6mm I want a quarter inch
[19:19:43] <pfred1> that extra .35mm makes a big difference
[19:20:06] <Crom> -5.3225mm it max Y
[19:20:24] <pfred1> https://www.youtube.com/watch?v=gweUVWUYYQ8
[19:21:06] <Crom> oops... it's -6.97mm forgot I was using same side of cutter to set y0
[19:25:24] <Crom> ugh ... how freaking wide is a receiver...
[19:38:40] <Crom> .87"
[19:48:40] <pfred1> might as well call it 7/8s
[20:05:29] <os1r1s> Anyone got a minute to answer a workholding question?
[20:05:47] <Tom_itx> maybe 48 sec
[20:05:51] <os1r1s> haha
[20:06:05] <os1r1s> On this part (sample of course) http://store-1wa94vq6.mybigcommerce.com/product_images/uploaded_images/pro_vise_stop_bridgeport_haas_cnc_milling_maching_kurt_vise_below_stock.jpg
[20:06:21] <os1r1s> How do they machine the bottom lip off
[20:06:33] <os1r1s> Once they are done with the top?
[20:06:40] <Tom_itx> generally flip it in some softjaws and flycut it off
[20:06:58] <Tom_itx> or such
[20:07:10] <Tom_itx> softjaws to fit the profile
[20:07:20] <os1r1s> So you have to machine the softjaws ...
[20:07:27] <Tom_itx> yeah
[20:07:28] <os1r1s> No way to do it without custom softjaws?
[20:07:46] <os1r1s> Seems like a lot of work for a one off part ... thats why I'm asking ...
[20:07:50] <Tom_itx> there's always a way
[20:08:10] <os1r1s> :)
[20:08:26] <Tom_itx> is the remaining material all extra or part of the part?
[20:08:35] <os1r1s> Lets say all extra
[20:08:50] <Tom_itx> then you need to mill the bottom down to thickness for sure
[20:10:03] <os1r1s> Ok
[20:10:26] <Tom_itx> i'd almost cut that on a work plate with finger clamps
[20:11:13] <Tom_itx> profile to thickness and on the final pass, take a small cutter around the profile down to within .005" or so and snap the part out of it
[20:11:20] <os1r1s> Gotcha
[20:11:28] <os1r1s> Ok. That makes sense ... Thanks
[20:12:53] <Tom_itx> there's always more than one way to cut a part
[20:13:02] <Crom_> rebooting linuxcnc machine
[20:14:06] <os1r1s> Tom_itx Do you typically just mill your own softjaws from alum stock?
[20:14:21] <Tom_itx> yeah
[20:14:39] <Tom_itx> somebody found some for kurt vise pretty cheap online though
[20:14:56] <Tom_itx> you've got a small mill though right?
[20:15:02] <os1r1s> g0704 size
[20:15:13] <os1r1s> Small compared to many here :)
[20:20:06] <os1r1s> Tom_itx This is for my pm25mv outside. I have a shertaig too
[20:38:13] <Cromaglious_> ahhhh usb power go unhooked
[20:41:12] <Cromaglious_> + everything is working again
[20:41:43] <Cromaglious_> now to work on the profiling code
[20:42:38] <Cromaglious_> still have .2mm to take off the wall
[20:47:36] <os1r1s> Cromaglious_ I thought you were buying a new machine?
[20:47:40] <os1r1s> What are you profiling?
[20:48:30] <Crom> when i get the money
[20:48:47] <Crom> ar15 trigger group pocket
[21:20:41] <XXCoder> LOL
[21:21:01] <XXCoder> was watching show short time, something about building a sheild against microwave weapon
[21:21:12] <XXCoder> its in 1700s 1800s something
[21:21:27] <XXCoder> they used... aluminium for sheld. metal thats more expensive than gold
[21:21:46] <XXCoder> LOT more expensive.
[21:25:04] <Simondious> refining aluminum isn't trivial, if we hadn't figure it out we'd be flying only carbon fiber planes.
[21:25:09] <Simondious> well.. and woodies
[21:26:12] <XXCoder> yeah
[21:27:36] <Cromaglious_> well it was the combination of the besemer furnace and electric heating that got us cheap AL
[21:28:02] <Cromaglious_> niagra falls to be exact...
[21:28:09] <XXCoder> yeah but that show screwed it up lol
[21:28:26] <XXCoder> using alum when gold is vastly cheaper and better sheild too
[21:29:14] <Cromaglious_> One of the napoleons had AL tableware... very expensive
[21:29:55] <XXCoder> im sure lead would block it just fine too
[21:30:06] <XXCoder> and lead was freely used back then, as we didnt know it was toxic
[21:31:43] <Cromaglious_> ok got heekscad saving files... setting some origins at 0, 22 something for ar receiver width I was able to center the the svg imports..
[21:33:08] <Crom> still having issues getting it to make them the right size..]
[22:09:17] <kyle___> hello
[22:10:50] <kyle___> so i'm in the early stages of putting together a small cnc router and want to know what people think about ball screws, lead screws, and belts
[22:11:17] <XXCoder> belts ehh ball screws usually is best option as even chinese ones tend to be better
[22:11:23] <kyle___> tjat
[22:11:26] <kyle___> that's what i've gathered*
[22:11:42] <kyle___> belts are stupidly cheap in comparison to the others up-front
[22:11:49] <kyle___> but up-front is probably the extent of that :P
[22:11:58] <XXCoder> would recommand clear balls up though as capt favorate saying - crunchy chinese bearings
[22:12:34] <enleth> kyle___: *good* belts are not so cheap
[22:12:35] <kyle___> hmmmm
[22:12:45] <kyle___> right, enleth
[22:13:09] <kyle___> but i am fine with an inferior machine because a shit machine is still better than no machine
[22:13:13] <enleth> kyle___: also, there's a a difference between using belts in the axis drivetrain and using belts *as* the axis drivetrain
[22:13:26] <kyle___> belts + wheels on aluminum extrusions
[22:13:37] <enleth> kyle___: I mean that you shouldn't be afraid to use a toothed belt to move torque between the motor and the ball screw if necessary
[22:13:43] <kyle___> oh yeah
[22:13:52] <kyle___> no that seems fine, just wondering about using it for the axis
[22:14:19] <kyle___> since cheap ball screws stop being cheap past about 500mm unless i'm just terrible at finding them
[22:14:37] <enleth> but you don't want to use the belt as the axis drive itself unless it's a 3D printer, laser cutter, plasma cutter or another type of machine where no cutting forces are present and fast movement is desired
[22:15:12] <kyle___> i mean, i wish i could build a laser cutter, but the cost of a laser diode better than 10W is offputting
[22:15:22] <enleth> the reason is obvious - you get a huge torque advantage on a ball screw, and some fine control as a bonus if you don't have a precision motor
[22:15:23] <kyle___> and co2 lasers are probably way out of my comfort zone
[22:15:27] <kyle___> yeah
[22:15:54] <kyle___> another point, servos or steppers? ;)
[22:16:02] <enleth> a belt is not nearly as much geared down so your stepper or encoder resolution starts to matter much more
[22:16:27] <kyle___> hadn't thought of that, good point
[22:16:31] <enleth> servos if you can afford it, if only for the experience and know-how of setting them up
[22:16:44] <kyle___> yeah, i'm all for learning more
[22:17:04] <enleth> most "serious" milling machines are servo-based
[22:17:21] <kyle___> surely if i pretend to be serious i'll do a lot better, yeah?
[22:17:29] <enleth> like, "a ton or more of iron" kind of serious
[22:17:39] <kyle___> yeah i'm aiming for like... desktop size
[22:17:56] <enleth> it's still nice to learn how to set up servos
[22:17:57] <kyle___> 600mm x 600mm table at most
[22:18:03] <kyle___> totally
[22:18:07] <enleth> but you'll get away with steppers just fine for this
[22:18:20] <kyle___> $12 chinese steppers though?
[22:19:08] <enleth> look on ebay, I've got half of my bridgeport retrofitted with parts being sold by used machinery auction houses, from machines that were broken and got dismantled for parts
[22:19:37] <enleth> $30 servo drives and all that
[22:19:45] <kyle___> i never seem to get so lucky
[22:19:51] <kyle___> but i'll keep looking
[22:20:08] <enleth> I'm sourcing steppers locally the same way, there's this company that scraps a lot of plotters
[22:20:25] <enleth> they put tons of cheap japanese steppers on auctions
[22:20:30] <kyle___> hm, if i got out more i'd probably find a lot of stuff like that in the bay area
[22:20:59] <Crom> anyone live in texas and have a speeding ticket,, I'm wondering what section they cite you for
[22:22:24] <Crom> just looked at section 201.904 speed signs... they only mention commercial travel
[22:24:25] <kyle___> maybe it's not such a terrible idea to do a ballscrew for my Z axis and belt/tracks for X-Y...
[22:26:47] <XXCoder> https://hackaday.io/project/12989-thor so tempted lol
[22:26:55] <XXCoder> but would be useless for me
[22:27:22] <kyle___> damn, that is tempting
[22:27:29] <kyle___> and also useless for me too!
[22:29:44] <kyle___> potentially stupid question but can I get linux cnc working on a raspberry pi?
[22:30:40] <XXCoder> good question?
[22:30:59] <XXCoder> though possibly underpowered for it, but then i dont use rspi dunno
[22:31:17] <Crom> kyle___, yes you can using rt-prempt kernel... working on that myself
[22:31:25] <kyle___> ooh cool
[22:31:49] <kyle___> that's directly off the pi?
[22:31:54] <kyle___> (not the power supply ofc)
[22:31:54] <Crom> RPi3 is actually faster than my itx nmachine I have linuxcnc running on now
[22:32:20] <kyle___> i just have an abundance of rpi0s so it'd be nice to get some use out of them
[22:32:33] <Crom> ypu gots to built a hat to give the 5v required by the BOB
[22:33:09] <kyle___> cool
[22:33:32] <kyle___> as long as i can get any use out of my "more money than sense" that i occasionally get
[22:34:37] <Crom> https://www.google.com/shopping/product/18198655579257196778?sclient=psy-ab&biw=1149&bih=583&q=raspberry+pi+cnc+hat&oq=raspberry+pi+cnc+hat&psj=1&bav=on.2,or.r_cp.&bvm=bv.132479545,d.cGc&tch=1&ech=1&psi=mxvWV6XjHsHCjwPY35qABA.1473649571501.5&prds=paur:ClkAsKraX06uxCX1RGBaiFrrJEunapbfAelUCLrhRwiK2LpCQ1YZX089icKyppgT8xDpsd312Yxs8TBpsQGrB44mi0i4Tj0buyuN33xMQgD8oQYa_SbjmBl9WBIZAFPVH735cZJNF15f-rfqKwEhuGMwlxvqbw&sa=X&ved=0ahUKEwj2xPbH7IjPAhWDMGMKHYsjChMQ8wIIVjAA
[22:36:02] <kyle___> that's probably better than what i was looking at https://www.pololu.com/product/1183/blog
[22:37:01] <kyle___> maybe... the adafruit one is $23 for 2 steppers
[22:37:56] <Cromaglious_> I noticed that when I opened the pae :(
[22:38:12] <Cromaglious_> need a RPi parallel port hat
[22:38:19] <kyle___> lol, totally
[22:38:42] <kyle___> also i was amazed at how cheap aluminum extrusion t-rails can be
[22:39:17] <kyle___> $7 for a basic 20x20x600 from misumi
[22:40:52] <kyle___> oh that's with both ends tapped too
[22:44:30] <XXCoder> 2020 600mm for 7 bucks?
[22:45:06] <kyle___> yeah
[22:45:18] <kyle___> keep in mind i have no reference point so maybe that's expensive...
[22:46:39] <kyle___> btw, does anyone know of a good online service for custom delrin parts? or could i maybe hire someone here?
[22:46:59] <XXCoder> though its shipping prices that they get you on
[22:47:02] <XXCoder> its large
[22:47:05] <kyle___> yeah true
[22:47:14] <kyle___> seems fair though since it is large :P
[22:52:20] <Crom> well you could get the GRBL hat and wire a DB25 into the appropriate holes
[22:55:19] <kyle___> hmmmm
[22:55:43] <kyle___> maybe i should just stop caring about cost so much and do it right!
[23:06:36] <Crom> http://www.ebay.com/itm/SainSmart-Raspberry-Pi-to-Arduino-shields-connection-bridge-/301349559582?hash=item4629d55d1e:g:dDgAAOSwEppUOOZv
[23:07:03] <Crom> this looks like it... convert 3.3v io to 5v
[23:07:11] <kyle___> oh nice
[23:07:17] <Crom> $25
[23:08:32] <Crom> er $26
[23:09:18] <kyle___> potentially crazy idea, but what if i were to build my mill partially out of 1/2" plywood where possible and then use it to mill delrin or aluminum parts once it's working to replace those?
[23:09:30] <kyle___> too thrifty?
[23:09:56] <Crom> LOOKS LIKE 13 DIGITAL and 8 analogs
[23:10:11] <Crom> no... sounds doable
[23:10:20] <kyle___> yeah that's probably not that crazy
[23:10:55] <Crom> shhseshz.. $26on ebay and $44 on sain smarts website
[23:11:06] <kyle___> that's... crazy
[23:13:24] <Crom> hmmm 5 inputs and 12 outputs on a parallel that board will do it
[23:15:09] <Erant> enleth: I've got some 200W servos on my mini mill. Totally worth it.
[23:16:27] <Erant> I think I spent $300 on the 3 servos plus 3 drives. Good stuff too. Software actually has a built in scope for tuning.
[23:16:40] <enleth> kyle___: sounds like a reasonable idea, I know a guy who made a plywood mill/router capable of machining aluminum
[23:16:56] <kyle___> nice!
[23:17:18] <enleth> granted, it had a work area of about 30x40cm and weighted almost 40kg
[23:17:30] <enleth> that was some thick plywood and there was a lot of it in there
[23:17:48] <Erant> kyle___: Not quite the same, but I manually milled the mounts for my CNC mill and then re-did them CNC-ed.
[23:18:08] <Erant> Same thing for the Z-axis ballscrew upgrade.
[23:18:23] <kyle___> nice
[23:18:39] <Erant> What are you looking to machine in the end?
[23:18:50] <kyle___> not really sure, it's more about the journey
[23:18:58] <kyle___> probably mostly wood, a little aluminum
[23:19:14] <Erant> Sure, sure. Just make sure that when you get there it's not a barren desert :)
[23:19:22] <kyle___> i know that whatever spindle i cheap out on won't handle harder stuff without going really slow, so you know
[23:19:53] <Erant> I decided to go with a mill after much thought. I was initially going for a router as well
[23:19:53] <kyle___> but plywood's cool with me, i like building RC planes when i'm not on cnc adventures
[23:20:16] <Erant> I wanted to be able to at least do steel, even if not really well.
[23:21:08] <kyle___> hm, i'm mostly looking to be able to cut out some thin plywood sections to glue balsa stringers to
[23:21:18] <kyle___> lasers would do it a lot better i'm sure
[23:22:45] <Erant> Fair enough. Sounds like you need a big surface too
[23:22:55] <kyle___> eh, probably not too big
[23:23:10] <Crom> kyle___, get a K40 and make a big bed
[23:23:16] <kyle___> i decided on 600mm by 600mm
[23:23:44] <kyle___> yeah, crom, i actually considered that
[23:24:32] <kyle___> wasn't sure if the axes in it were even worth upgrading though
[23:25:10] <Crom> I have 2 one running a MKS Gen v1.4 and one running a mega2560+RAMPS 1.4 the MKS is getting a MKS SBase smoothieware compat board
[23:25:52] <Crom> I've got the beds doing 250x320mm with stock hardware
[23:25:59] <kyle___> hm
[23:26:52] <Crom> the MKS will be going into the RAMPS machine once I get a replacement tube
[23:26:53] <kyle___> the thing about that is that i wanted to move up to aluminum sheet eventually
[23:27:04] <kyle___> i've read that 40w lasers struggle with that but i could be wrong
[23:27:11] <Crom> yeah router for that
[23:27:32] <Crom> it'll deanodize be it won't cut
[23:27:37] <enleth> kyle___: 40W CO2?
[23:27:40] <kyle___> yeah
[23:27:49] <enleth> won't do shit to aluminum
[23:27:53] <enleth> even kitchen foil
[23:27:55] <kyle___> that's what i thought
[23:28:17] <kyle___> everyone says you need at least 100W CO2 to cut even the thinnest stuff
[23:28:26] <enleth> yep, I'd even say 200W
[23:28:38] <kyle___> yeeeaahhhh
[23:28:48] <kyle___> milling just seems more flexible :P
[23:28:57] <enleth> those tubes will die quickly if used at maximum power, so you don't want to do that
[23:29:10] <kyle___> although i live in an apartment, my neighbors are sure to hate me for this
[23:29:18] <enleth> but milling sheet metal doesn't really work
[23:29:37] <enleth> it vibrates and flops around, edge finish is horrible
[23:29:41] <kyle___> was wondering about that actually
[23:30:05] <kyle___> would you be able to mitigate that with a vacuum under it?
[23:30:07] <enleth> so for thin sheet, a laser cutter of sufficient power is much better
[23:30:15] <enleth> maybe, I never tried that
[23:30:21] <enleth> I don't have a vacuum table
[23:30:46] <kyle___> you can get pretty creative with that mdf hole board
[23:31:10] <enleth> but every week I have to explain to someone why the bridgeport isn't the right tool to cut their sheet metal thingy
[23:31:11] <kyle___> but yeah, dunno if you'd get a strong enough seal
[23:31:19] <kyle___> lol
[23:31:52] <enleth> 3mm is the minimum I'd try to mill, maybe 2mm
[23:32:13] <enleth> anything thinner will just flop up and down by the endmill
[23:32:24] <kyle___> hm that's probably a bit too thick for aluminum sections in an RC plane
[23:32:34] <enleth> unless it's a really small part clamped close to where it's being cut
[23:32:48] <kyle___> could do that
[23:32:55] <enleth> but that stops being "sheet metal" tbh
[23:32:56] <kyle___> what about stacking?
[23:33:15] <kyle___> cutting cross sections means a lot of duplicate parts
[23:33:16] <enleth> the top layer will start flopping, the ones below probably too, just a bit less
[23:33:35] <enleth> unless you glue them together or something, then use heat to soften the glue?
[23:33:41] <kyle___> that's what i was thinking
[23:33:46] <kyle___> or maybe even oil?
[23:33:48] <enleth> that could work
[23:33:59] <kyle___> worth trying for sure
[23:34:09] <enleth> using surface tension and negative pressure to keep them together with a liquid?
[23:34:24] <kyle___> yeah
[23:34:25] <enleth> could work too
[23:34:55] <enleth> but glue definitely should, people do glue small parts to sacrificial arbors for turning and it works
[23:34:57] <kyle___> ... what about some small "feet" with captive ball bearings that extend down as it cuts?
[23:35:12] <kyle___> eh chips would probably make that useless
[23:35:20] <kyle___> too much complexity as well
[23:35:22] <enleth> at that point you can probably afford to make a custom clamp
[23:35:35] <kyle___> it would look hilarious though
[23:35:46] <kyle___> "let me just hold that for you"
[23:36:21] <enleth> anyway, ask around for vacuum holding of sheet metal, that might be sufficient
[23:36:55] <XXCoder> enleth: saw people use superglue then remove it using heat
[23:37:00] <XXCoder> interestinguse
[23:37:20] <enleth> what I do for sheet metal is just order it lasercut or watercut as I don't have a laser powerful enough
[23:37:27] <enleth> annoying to have to wait, but it costs close to nothing
[23:38:50] <Erant> XXCoder: I do the superglue thing on the lathe a lot.
[23:39:21] <XXCoder> interesting. funny because superglue was orginially invented to be situes replacement
[23:39:23] <XXCoder> sitches
[23:40:14] <Erant> On tight joins it sets in seconds, and it's strong enough to withstand the torque involved.
[23:40:24] <Erant> Just have to keep the work fairly cool.
[23:41:05] <enleth> Clickspring guy does it all the time
[23:41:16] <kyle___> hey, if you cut yourself on the sheet metal at least you have some super glue around to close up the cut
[23:41:23] <Erant> Though for sheet metal? eeeeh... I don't think that's a viable way.
[23:41:26] <enleth> he even made special arbors for the lathe and "tables" for the mill
[23:41:29] <kyle___> you should probably not actually do that btw
[23:41:43] <Erant> enleth: Yeah, I got it from him ;)
[23:42:07] <kyle___> superglue actually works as a really nice finish on wood, too
[23:42:22] <kyle___> not really cost effective...
[23:42:38] <XXCoder> en yeah thats how i learned of ut
[23:42:39] <Erant> I had to machine a hub for something, so I just drilled and reamed the hole, got a piece of shaft and glued the workpiece to the shaft.
[23:43:09] <Erant> Tada, full access to the piece, and I didn't have to machine a seperate holder for it.
[23:43:40] <kyle___> https://www.aliexpress.com/item/8x-GT2-20T-Timing-Pulleys-5M-GT2-Timing-Belt-3D-Printer-CNC-Reprap-Prusa-TE407/32627770733.html?ws_ab_test=searchweb201556_7,searchweb201602_4_10057_10056_10065_10068_10055_10067_10054_10069_10059_10058_10073_10017_10070_10060_10061_10052_10062_10053_10050_10051,searchweb201603_2&btsid=f2c00c6e-9cff-41b7-9e7e-cb7aabd747e1
[23:43:44] <kyle___> what do you guys think
[23:43:51] <kyle___> good enough for crappy thrift shop mill?
[23:44:20] <enleth> no, definitely not
[23:44:56] <kyle___> damn it's cheap though
[23:45:10] <XXCoder> 3d printers yeah
[23:45:12] <XXCoder> milling nah
[23:45:18] <enleth> the pulleys will start slipping and jumping teeth, ripping them off eventually, on encountering any real torque
[23:45:18] <kyle___> maybe i should just build a 3D printer at this point
[23:45:37] <enleth> you just don't use belts for substractive manufacturing
[23:45:41] <kyle___> yeah
[23:45:57] <enleth> maaaaybe a huge ass oversized belt would do
[23:46:02] <enleth> but it would no longer be cheap
[23:46:02] <kyle___> https://www.aliexpress.com/item/Free-shipping-SFU1204-L-600mm-rolled-ball-screw-C7-with-1204-flange-single-ball-nut-for/32707451019.html?ws_ab_test=searchweb201556_7,searchweb201602_4_10057_10056_10065_10068_10055_10067_10054_10069_10059_10058_10073_10017_10070_10060_10061_10052_10062_10053_10050_10051,searchweb201603_2&btsid=40bbb55c-ee69-46ca-bac7-f505ae560dc0
[23:46:04] <XXCoder> en I saw one that does, in strange way. and yes thick and strong type
[23:46:09] <kyle___> these are the ball screws i was looking at
[23:46:25] <enleth> yep, this is what you want
[23:46:35] <enleth> they're chinese, but, well, they should work
[23:46:37] <kyle___> can they really be this cheap and still be worth using?
[23:46:54] <Erant> enleth: Well, I mean, I'm using timing belt on my Z-axis.
[23:46:54] <XXCoder> if youre serious maybe re-pack with better bearings
[23:47:06] <XXCoder> besides that its likely fine
[23:47:07] <kyle___> yeah, was wondering if that'd be feasible
[23:47:39] <kyle___> i guess the real cost with these is that if they're damaged beyond use, it's not really worth returning them
[23:48:04] <Erant> enleth: Gotta get that torque somehow, so I've got a 3:1 ratio between the servo and ballscrew.
[23:48:26] <Erant> kyle___: The big thing with ball screws like that is that they're C7.
[23:48:27] <enleth> Erant: ah, but you're using the belt as gearing, that's fine
[23:48:41] <Erant> Which is... Shit, what's the tolerance on C7 again.
[23:48:55] <enleth> Erant: I was talking about using the belt as the actual axis drive
[23:49:19] <kyle___> +/- 0.007" over 12"
[23:49:36] <Erant> enleth: Fair enough.
[23:49:45] <kyle___> at 600mm this doesn't seem too bad...
[23:50:18] <enleth> or 50µm over 300mm for the civilised world
[23:50:42] <enleth> +/-50µm to be exact
[23:50:48] <kyle___> nice
[23:51:27] <XXCoder> no! me no savage! imperial civilizion!
[23:51:28] <enleth> not really, but works for wood I guess
[23:51:39] <kyle___> oh, i don't think that's the right number
[23:51:39] <Erant> kyle___: I mean, if you're doing wood, that's ok.
[23:51:57] <kyle___> oh it is
[23:52:07] <kyle___> yeah
[23:52:13] <enleth> 50µm of error is 0.05mm, you can see that with no magnification on a machined surface
[23:52:29] <kyle___> and for $30/screw i can just replace it if i want to do better down the line
[23:52:37] <kyle___> crawl before you walk, right?
[23:52:42] <enleth> and feel a ridge that high just sliding your fingertip over it
[23:52:42] <Erant> Well, sec.
[23:52:55] <enleth> but, yeah, can't beat $30
[23:53:14] <enleth> you can replace them with better ones later
[23:53:27] <kyle___> and free shipping, even if it takes a few weeks!
[23:53:32] <enleth> so go for it
[23:53:40] <kyle___> on the plus side, san francisco is about as close as you can get to china in the continental US
[23:53:41] <Cromaglious_> just realizd I don't have a 1/4" collet... I have 6mm and 7mm
[23:53:58] <enleth> worst case you'll have spare ballscrews for another project that doesn't need as much precision
[23:54:02] <XXCoder> paper shim it crom
[23:54:09] <kyle___> that's true enleth
[23:54:22] <XXCoder> I still have set of ballscrews and SBRs
[23:54:28] <XXCoder> still uncertain what to do with em lol
[23:54:30] <enleth> Cromaglious_: won't 7mm grab 6.35mm safely? what type of collet?
[23:54:33] <kyle___> always great to have a lot of spare hardware even if my girlfriend disagrees
[23:54:48] <Cromaglious_> ER11
[23:55:09] <enleth> oh, OK, no idea what's the range of that; ER16 would be fine
[23:56:30] <Erant> I got my 12" ballscrew for $75
[23:56:38] <Cromaglious_> wee I bid 0.99 on a collet
[23:57:04] <Cromaglious_> it'll go up to $1.25
[23:57:23] <Erant> Which, if I recall correctly, was C3
[23:57:34] <XXCoder> mines 2 500mm ballscrews and one small 200mm
[23:58:52] <Crom> i'd just buy another 3040 with ball screws...
[23:59:01] <Erant> kyle___: Where in SF are you btw?
[23:59:12] <Erant> Crom: Again, those are 'shitty'
[23:59:21] <Crom> yep