#linuxcnc | Logs for 2016-01-12

[01:51:33] <pink_vampire> hi
[02:33:07] <Deejay> moin
[02:37:16] <pink_vampire> hi Deejay
[02:38:32] <enleth> anomynou1: so you had to account for shrinkage and so on in the pattern? Or just made it roughly oversized and machined it to dimensions?
[03:16:45] <trentster> hey all
[03:18:39] <trentster> I am busy with the re-design of my Z axis for linear profile rails - I was wondering on opinions where is best location for screw holes from bearing plate to attach to ballscrew nut? as per this screenshot https://monosnap.com/file/v1m3SMKe4WtkIkSZSMfzzg5RwhB1gR.png
[03:21:11] <archivist> did you forget the carriages
[03:25:41] <trentster> nah they are not in the diagram yet, they are those small schneebergers the 9mm gap is for them
[03:29:41] <trentster> archivist: https://monosnap.com/file/KzwD2pmSkYOJOPKiThNkeoi7ojutWF.png thats what the ballscrew mount looks like
[03:29:56] <trentster> does it matter if the bearing plate is attached in the middle or at the top edge?
[03:30:57] <archivist> working to a thou, dont care
[03:31:40] <archivist> when working to tenths you start to worry about thermal expansion etc
[03:34:19] <trentster> archivist: so if you did care about thermal expansion where would the best place to conenct it be?
[03:35:51] <archivist> nearest the tool probably
[05:07:02] <trentster> archivist: thanks
[06:04:17] <XXCoder> pink_vampire: hey
[09:50:32] <pink_vampire> hi XXCoder
[10:37:49] <ssi> quiet today!
[10:38:43] <morbo> any recommendations for a pololu-style or even same pinout stepper driver rated for more more than 2 amps without cooling? supposedly the DRV8825 can do it with cooling, but that's not an option for me. :(
[10:39:29] <archivist> bolt to a good heatsink
[10:40:16] <morbo> any heatsink suggestions then
[10:40:46] <archivist> could even be the case you put it into
[10:41:01] <morbo> thats a little further down the road.
[10:41:08] <archivist> many drivers come with a heatsink
[10:41:35] <morbo> they come with pretty small ones sometimes
[10:41:54] <archivist> eg the black box style
[10:42:12] <morbo> do you have a suggestion on a driver?
[10:42:12] <archivist> the others I dont trust
[10:42:16] <CaptHindsight> convection vs forced convection, convection is just the use of a heat spreader
[10:42:28] <CaptHindsight> forced convection is a heat spreader with a fan
[10:42:53] <CaptHindsight> you can do the same with convection only you require more surface area
[10:42:56] <archivist> the bigger the fins the less fan needed
[10:44:03] <archivist> my driver I have been messing about with the last few weeks hardly gets warm
[10:44:30] <morbo> I'd like to use 2amp zapp steppers
[10:44:53] <CaptHindsight> the problem with the A4988 is that they designed the package to cool the die via the pins and not the case
[10:44:57] <morbo> but I can't seem to find some drivers that a like pololus that can handle it.
[10:45:11] <morbo> without dealing with cooling and et
[10:45:11] <morbo> c
[10:45:19] <morbo> any driver suggestions in general, for around 2amps?
[10:46:32] <archivist> first I see on ebay http://www.ebay.co.uk/itm/CNC-Microstep-Stepper-Motor-Driver-2M542-4-2A-Controller-24-50V-DC-Nema17-23-34-/121673528376
[10:47:00] <CaptHindsight> the DRV8825 package uses an exposed pad to remove heat from the device
[10:47:52] <CaptHindsight> so both require some fancy pcb layout to move the heat from the pcb out to a heatsink
[10:47:55] <morbo> archivist: I was hoping more for brand suggestions from experienced users. Not ebay links from the first thing someone found.
[10:48:16] <CaptHindsight> so people don't bother using either when they need more power
[10:48:25] <trentster> Anyone ever mount 15mm Hiwin rail to 30 series extrusion - the bloody screws are M3 - know any clever way to do it?
[10:48:37] <archivist> morbo, that looks just like the one I am using which I got from Arc Euro Trade
[10:49:17] <morbo> archivist: cool. thank you
[10:49:21] <morbo> I just found them
[10:49:47] <archivist> arc euro trade is my "local" supplier
[10:49:55] <CaptHindsight> trentster: is 30 series 30mm metric or 3"?
[10:49:56] <archivist> 30 miles
[10:50:36] <trentster> archivist 30mm metric
[10:50:41] <archivist> trentster, I thought that was 4mm
[10:51:13] <archivist> screws are a close fit not rattling fit
[10:51:20] <trentster> This is what I am using http://www.amesystem.com.au/aluminium-profiles/30-series/30x60-aluminium-profile/
[10:52:10] <CaptHindsight> make some t-nuts
[10:53:13] <trentster> archivist: the Hiwin page here says EGR15R Rail has hole diameter of 3.5mm http://www.hiwin.de/en/Products/Linear_Guideways/Series_EG_QE/Rail_EGR/EGR_R/4316
[10:53:39] <archivist> use 3.5mm screws then
[10:54:07] <trentster> that still does not solve my problem
[10:54:18] <trentster> How to mount rail on the 30 series extrusion
[10:54:40] <archivist> t nuts or use something solid and not that extrusion
[10:54:44] <CaptHindsight> he needs some matching nuts
[10:54:45] <trentster> besides making t-nuts which is a non-option for em I dont have a machine that can cut steel
[10:55:08] <CaptHindsight> make em from aluminum
[10:55:31] <CaptHindsight> or bolt the rails to some plate and then bolt the plate to the t-slot
[10:55:37] <archivist> make sure your nuts have as much thread as possible
[10:56:04] <trentster> the issue with aluminium tnuts is the thread can strip really easily
[10:56:47] <CaptHindsight> well you'll probably only tighten them once or maybe twice
[10:57:39] <archivist> you might be able to machine steel with very small cuts
[10:58:00] <archivist> else file and hacksaw
[10:58:52] <trentster> Thanks guys - I was hoping there would be an easy fix - darn! maybe I should have just bought the 25 series stuff that can take m6 screws
[10:59:06] <CaptHindsight> or find some steel flats 12-15mm wide and 2mm thick
[10:59:26] <CaptHindsight> drill and tap, cut with a hacksaw
[10:59:33] <archivist> steel 1/2" thick and throw the extrusion
[10:59:38] <CaptHindsight> heh
[10:59:51] <archivist> gauge plate
[11:00:31] <trentster> CaptHindsight: yeah thats a good idea, even 4mm thick would work
[11:00:31] <archivist> I might not be a fan of some extrusions :)
[11:01:13] <CaptHindsight> http://www.amesystem.com.au/wp-content/uploads/2014/10/30x602-750x380.png
[11:01:48] <CaptHindsight> 4mm is too thick, you could grind it to fit into the slot
[11:02:31] <CaptHindsight> measure the depth of the slot until it meets that curve
[11:04:55] <trentster> CaptHindsight: http://www.amesystem.com.au/wp-content/uploads/2014/11/fasteners.png
[11:05:25] <trentster> The M6 16x16x4 is what I am currently using - it fits
[11:06:39] <CaptHindsight> then get some 16mm x 4mm steel flat bar
[11:08:31] <CaptHindsight> use the rails as a drill guide, well for marking anyway
[11:08:35] <trentster> and hope I can get every single hole just perfectly centered without a cnc machine - yikes!
[11:09:17] <CaptHindsight> you'll have a little play in the holes and with the length of the screws
[11:09:48] <CaptHindsight> you have to learn somehow
[11:10:16] <archivist> I clamped one rail made sure it was square then marked through the holes, mounted that one and then used the carriages and plate to set the width for the second rail
[11:10:25] <CaptHindsight> then when you're done you'll know how to do it better next time
[11:10:59] <trentster> No pain no gain - huh guys ;-)
[11:11:14] <archivist> I drilled an mounted one screq for the second rail, moved the carrage to the other end for the second screw
[11:11:51] <archivist> used that to make sure it was parallel
[11:12:36] <trentster> Ok, I will give it a go :-)
[11:23:22] <cncbasher> trentster:also use the dummy carrage as it were , to move up and down every screw hole and tease the rail to be parallel , and go over it a few times
[11:24:01] <cncbasher> works fine , apart from being boring and a pain to do
[11:36:20] <trentster> cncbasher: thanks, will do
[12:25:45] <maxcnc> hi ;-)
[12:34:00] <Jymmm> Hola
[12:44:01] <maxcnc> its raining man in germany
[12:44:28] <Jymmm> Let me know when it's raining women!
[12:44:52] <maxcnc> then more refugies woudt come to our country
[12:44:52] <Deejay> haha
[12:45:01] <anomynous> theyd be unlikely to survive the fall
[12:45:02] * Deejay wants snow
[12:45:05] <anomynous> we have
[12:45:11] <maxcnc> Deejay: wie siehts bei dir aus
[12:45:24] <anomynous> actually
[12:45:30] <Jymmm> anomynous: They have airbags. Well, most of them do.
[12:45:32] <anomynous> theyd also be unlikely to survive the liftoff
[12:46:09] <maxcnc> Deejay: dunkel ;-)
[12:46:10] <anomynous> most likely theyd be in pieces at the liftoff already.
[12:46:11] <anomynous> aaa
[12:46:13] <anomynous> atomic bomb
[12:46:39] <maxcnc> oh the jungel camp starts on fridey with atomic inside
[12:46:57] <anomynous> atomic skies in jungle?
[12:48:10] <anomynous> maybe its next to a desert to downhill ski dynes.
[12:48:22] <maxcnc> make a google"sophia wollersheim "
[12:48:47] <anomynous> why
[12:49:04] <maxcnc> she looks like
[12:49:12] <anomynous> prostitute
[12:50:09] <maxcnc> no its the wife of a brothel owner
[12:50:27] <maxcnc> <- need to google first
[12:50:34] <Jymmm> anomynous: See, you're wrong. She WAS a hooker, just not anymore =)
[12:50:58] <anomynous> nope. I said she looks like a prostitute, and she does
[12:51:10] <maxcnc> archivist online ?
[12:51:11] <anomynous> never heard of her before
[12:51:22] <maxcnc> only german girl
[12:51:29] <Jymmm> anomynous: Nah, but she does have airbags
[12:51:40] <anomynous> those are not airbags Jymmm
[12:51:42] <anomynous> theyre tits
[12:51:57] <Jymmm> anomynous: No, they are salt+water
[12:52:11] <maxcnc> wrong conversation for a Tec suport chanel
[12:52:18] <anomynous> yeah
[12:52:31] <maxcnc> Folks did you see the CES in Las Vegas
[12:52:49] <Jymmm> maxcnc: Hey, you started this!
[12:52:53] <maxcnc> Polaroid with the mega 3D printer in full wood
[12:53:21] <maxcnc> all hard materials in 3D with full color
[12:53:41] <anomynous> https://www.youtube.com/watch?v=tIIJME8-au8
[12:53:48] <maxcnc> no expierence in 3d modeling by cube 3D
[12:53:49] <anomynous> yes yes, robot porn for geeks
[12:53:51] <anomynous> sorry
[12:53:58] <anomynous> porn isnt good for anyoone
[12:54:26] <maxcnc> the world will folow startrek in some time
[12:54:41] <maxcnc> the coppter taxi
[12:54:43] <anomynous> naw. This never drags that long.
[12:55:42] <maxcnc> in 2016 the first lig of drone fliing starts
[12:56:01] <anomynous> Jesus will come before that ;) People turn good into bad and bad into good, and their christ is satan's puppet.
[12:56:56] <maxcnc> in 1982 i got my first 25mhz pc at 8.000Dollars
[12:57:13] <maxcnc> and now i can get TB parts for 100
[12:57:24] <anomynous> 25MHz sounds fast
[12:57:33] <maxcnc> it has been
[12:58:27] <anomynous> i think our 386 was about that too
[12:58:30] <anomynous> not sure
[12:58:45] <anomynous> but this was later
[12:58:51] <maxcnc> we are getting to old for this stuff as Kindergarden got fully smartphone managed
[12:59:02] <anomynous> naw
[12:59:05] <anomynous> theyre just toys
[12:59:08] <anomynous> people play
[12:59:57] <anomynous> not many people actually use email daily... if you are working at an office, then probably. But if youre not?
[13:00:04] <maxcnc> in the University first in lessen Gentelmen start your Notebooks
[13:00:44] <anomynous> those are handy things they are, aren't hey?
[13:00:45] <maxcnc> agree on rednek
[13:01:20] <anomynous> sure they are... but for most part these things are toys for people :)
[13:01:37] <anomynous> and entertainment has driven PC
[13:01:41] <maxcnc> Here in our region there is a stor that has no payment at all on cach
[13:02:04] <maxcnc> agree TV is fully on the web
[13:02:23] <maxcnc> IP phone - IPTV
[13:02:32] <maxcnc> IPshop
[13:02:47] <maxcnc> IPheating and housemanagment
[13:02:55] <anomynous> maxcnc: what did you do with you first pc?
[13:03:12] <maxcnc> it all can end 8min from now if the sun has a cold flue
[13:03:27] <maxcnc> managing the office
[13:03:45] <anomynous> wow you actually did something useful, then
[13:03:52] <maxcnc> its now here a FAX modem
[13:04:04] <anomynous> still using fax
[13:04:05] <anomynous> :D
[13:04:20] <anomynous> nothing wrong with it. It works just as well
[13:04:28] <maxcnc> its offical a order agrement
[13:04:43] <anomynous> we have a fax for one client ;D
[13:05:40] <maxcnc> ok im off for today first week in year is a miss
[13:06:18] <anomynous> a miss?
[13:07:09] <anomynous> maybe he got butthurt over something
[13:17:37] <thesaint> hey guys, anyone use ngcgui lathe?
[13:21:33] <Jymmm> LMAO https://www.youtube.com/watch?v=ZS3O0OOn0a0
[13:25:51] <cradek> k
[13:26:04] <Jymmm> The revenenge https://www.youtube.com/watch?v=lv6op2HHIuM
[13:26:05] <cradek> oops now everyone knows my password
[13:26:32] <ssi> your password is 'k'? :D
[13:26:53] <FloppyDisk> I would try 'l' in about 2 min:-)
[13:26:58] <Deejay> ah, timo boll
[13:28:16] <Jymmm> FloppyDisk++
[14:55:14] <pink_vampire> hi
[14:55:31] <pink_vampire> why all the panels limites to 1024x768 .
[14:55:39] <pink_vampire> limited*
[14:55:47] <pink_vampire> http://superlogics.com/industrial-computers/panel-pc-computer/SL-PPC-15A-LL2930A-S29-1/263-5604.htm?gclid=CLDd8d-OpcoCFYqPHwod8_AJdA
[14:55:56] <pink_vampire> this one look nice..
[14:56:05] <pink_vampire> but I want FHD
[15:03:11] <Jymmm> Everyone got their lottery tickets yet?
[15:03:55] <ReadError> yessir
[15:04:19] <ReadError> I never play, but figure, 'ehhh'
[15:04:39] <Jymmm> billion not anythign to sneeze at
[15:06:07] <Jymmm> I dont even know what I'd do with it
[15:06:21] <ReadError> you can pay people to figure that out ;p
[15:06:49] <Jymmm> lol, yeah... that's what I'm afraid of =)
[15:08:47] <Jymmm> ReadError: That's how I hear past winners are now broke
[15:09:17] <ReadError> ehh yea but that much, it would require a good bit of effort to go broke
[15:09:37] <Jymmm> Nah, can be spent in 90 seconds
[15:11:13] <pink_vampire> http://www.newegg.com/Product/Product.aspx?Item=9SIA0V13986461
[15:12:03] <malcom2073> Jymmm: If you win, buy me stuffs? :P
[15:12:30] <Jymmm> malcom2073: hello kitty stuffys
[15:12:47] <malcom2073> I would use a hello kitty VMC, I'm not that proud
[15:13:42] <anomynous> would you print that slogan on the machine?
[15:13:48] <Jymmm> malcom2073: but you have to wear the hk custom too
[15:13:53] <anomynous> next to the hello kitty picture
[15:13:55] <Jymmm> costume
[15:14:12] <Jymmm> malcom2073: all day, and night, for at least a year
[15:14:24] <malcom2073> Hmm, how nice a VMC are we talkin?
[15:14:49] <Jymmm> malcom2073: depends on how well you promote HK at the furry shows!
[15:15:04] <malcom2073> You're workin on buying me full tooling too
[15:15:21] <Jymmm> your lucky on the vmc
[15:15:38] <malcom2073> I'd argue that you'd be luckier
[15:16:04] <Jymmm> youre arguing with the one that could get you a vmc?
[15:16:27] <malcom2073> Psh, I'm just as likely to win as you are, and I'm not even playing!
[15:27:37] <andypugh> Well bother! (quoth he, surprisingly mildly) my lathe drivetrain just seized solid.
[15:28:31] <thesaint> guys, does anyone know on the preview screen in axis if you can change the number of decimal places shown on your intended cuts? I have only one order of precision, i would like 3.. cheers!
[15:29:11] <thesaint> andypugh, hi andy, sorry to hear!
[15:29:34] <thesaint> that sounds bad..
[15:29:35] <andypugh> Only one? You should have 2 in metric and 3 in imperial.
[15:29:55] <anomynous> why metrics get less than imperials?
[15:29:58] <thesaint> only one.. ie 12.4 etc...
[15:30:06] <andypugh> That’s very odd.
[15:30:11] <cradek> I don't understand "on your intended cuts"
[15:30:28] <cradek> can you say more precisely, or make a screenshot?
[15:30:31] <thesaint> cradek, preview of what the tool will do..
[15:30:52] <andypugh> Ah, you mean the extents? I thought you meant the DRO
[15:30:57] <cradek> oh the extents in the preview?
[15:31:15] <thesaint> tool preview, the cutting path i suppose..
[15:31:28] <thesaint> is that called the extents? thanks..
[15:31:44] <thesaint> the stuff shown in red before you hit start...
[15:31:50] <cradek> did you know you can click on those lines, and it takes you to the corresponding line in the gcode program? that's often an easy way to see the exact values in the corresponding code
[15:32:23] <jdh> I didn't
[15:32:28] <cradek> it's awesome
[15:32:45] <cradek> you can actually do it in both directions
[15:32:52] <thesaint> cradek, interesting, thanks, no i did not..
[15:32:55] <cradek> click the gcode and see the corresponding line in the preview light up, or the other way
[15:33:38] <XXCoder> Jymmm: on statistics: http://www.cracked.com/phpimages/photoshop/1/6/8/472168_v1.jpg heh
[15:33:39] <thesaint> cradek, cool..
[15:33:59] <andypugh> You probably can change the precision of the extents.
[15:34:11] <thesaint> andypugh, where do i do that?
[15:34:18] <andypugh> I have no idea
[15:34:29] <andypugh> I know that you can change the DRO precision
[15:34:46] <cradek> I believe you can't change either without editing the source
[15:34:53] <thesaint> ok, i use google and see what i come up with, cheers!
[15:35:00] <thesaint> i know what to look for now..
[15:35:08] <andypugh> Indeed, though as they are interpreted files, there is no need to recompile
[15:35:24] <jdh> I'd like another digit myself
[15:35:50] <andypugh> DRO or extents?
[15:36:07] <jdh> extent
[15:37:14] <jdh> I put the cutter where I want it and touch off to extent
[15:39:33] <jdh> but, I know it is .0625 not the displayed .062
[15:41:28] <andypugh> Are you sure you don’t mean DRO? I know how to tweak the DRO precison (edit around line 1321 of /usr/lib/pymodules/pythin2.7/glcanon.py)
[15:41:55] <andypugh> By extension, it looks like you need to edit line 567 of the same file to change the extents display
[15:45:50] <andypugh> Yes, that works: http://imagebin.ca/v/2TFBHtnvZkNh
[15:46:45] <thesaint> yes, looking at it now, i dont seem to have file glcanon.py - at least not where you said..
[15:47:34] <andypugh> You will need to use “gksudo gedit” to be allowed to edit the file.
[15:48:08] <andypugh> And I can never type “Python” which is part of the problem.
[15:48:36] <thesaint> lol... still cant find it :-)
[15:48:37] <andypugh> “locate glcanon.py” will find your version
[15:48:42] <thesaint> doing..
[15:49:18] <andypugh> I have three of them, which is interesting
[15:49:27] <thesaint> my linux admin skills are very rusty, i have 2 of them..
[15:49:34] <andypugh> Two I can understand, three is a surprise
[15:50:02] <andypugh> I edited the one in usr/lib/pymodules and it worked
[15:50:09] <andypugh> You could edit both, to be sure
[15:57:03] <thesaint> andypugh, working, cheers!
[16:01:08] <thesaint> ok, OD turning working in ngcgui, now onto facing...
[16:11:02] <thesaint> has anyone used the ngcgui for facing? i am not sure what i have is correct, i dont have any hints in the positional parameters, just the list from 1 to 14, anyone know if that is correct?
[16:11:25] <thesaint> not exactly intuitive... lol
[16:13:02] <thesaint> hmm... maybe it cant find my subfile..
[16:20:08] <andypugh> I have never used it.
[16:20:39] <PetefromTn_> I have never used it....yet ;)
[16:22:36] <thesaint> cant seem to get it set up properly.
[16:26:32] <thesaint> think i need to ask JT-Shop ...
[16:32:20] <pink_vampire> someone here know svg?
[16:37:50] <andypugh> You might find “Features” more intuitive. I use my own macros for nearly everything: https://forum.linuxcnc.org/forum/41-guis/26550-lathe-macros
[16:38:04] <andypugh> I know a bit about svg
[16:38:28] <andypugh> pink_vampire: I wrote some Inventor VBA Macros that output on SVG.
[16:38:42] <andypugh> It’s pretty-much human-readable
[16:38:49] <pink_vampire> https://jsfiddle.net/tj1mckrd/2/
[16:39:00] <pink_vampire> I have a problem with that
[16:39:13] <pink_vampire> I need to draw the rectangle from the bottom not from the top.. there is a way to do it?
[16:39:18] <pink_vampire> andypugh: ^
[16:40:14] <andypugh> I think you can do it by setting the axes inverted
[16:41:28] <pink_vampire> you know how to do it?
[16:41:32] <pink_vampire> I'm lost..
[16:42:14] <andypugh> My code has width="5.25cm"
[16:42:14] <andypugh> height="7.45cm"
[16:42:15] <andypugh> viewBox="-11.2079921781267 -14.91771040333 5.25 7.45"
[16:42:19] * Jymmm hands pink_vampire some bark, steel wire, and silk undies
[16:43:12] <andypugh> But I have to admit that I don’t entirely understand the question.
[16:43:39] <pink_vampire> the blue part is bar graph..
[16:43:52] <pink_vampire> it's need to start from the bottom..
[16:44:27] <Jymmm> andypugh: How much wood could a train chuck that's leaving boston, and the sky is fusia? Please phrase your answer in the form of a exclamation.
[16:46:54] <andypugh> pink_vampire: https://jsfiddle.net/tj1mckrd/3/
[16:47:38] <pink_vampire> i can't see the bar
[16:47:54] <andypugh> Sorry, I didn’t understand the jsfiddle interface, I mean https://jsfiddle.net/tj1mckrd/4/
[16:51:02] <PetefromTn_> once again I don't know what the hell is going on :D
[16:54:13] <Deejay> gn8
[16:58:40] <pink_vampire> andypugh: I want to be able to really darw it from the bottom up..
[16:58:48] <pink_vampire> but it's also ok..
[17:00:04] <andypugh> I tried doing it with an inverted svg, (ie with the 0,0 at the bottom) but that didn’t seem to work. Maybe I didn’t try the right incantations. Perhaps you need to set up a Transform?
[17:03:01] <pink_vampire> i try to do transform.. but it didn't work.. so I give up on it..
[17:05:47] <bobo_> JT-Shop: thank you for the pdf on servo-drive wiring practices
[17:08:51] <bobo_> ssi: just wondering how the servo drive is progressing ? anything new
[17:23:05] <FloppyDisk> bobo_: can I get a look at that servo-drive wiring practices? I have noise issues as well. Thanks.
[17:27:07] <bobo_> sure ,but I don't know how to get it available to you. also saw it in the mail logs JT was rewiring his bridgeport
[17:28:12] <bobo_> sorry to be such a putz
[17:29:01] <FloppyDisk> is it a rockwell automation pdf?
[17:29:02] <FloppyDisk> http://literature.rockwellautomation.com/idc/groups/literature/documents/at/motion-at004_-en-p.pdf
[17:29:16] <FloppyDisk> I pulled it from the mail logs when Bertho posted it. Might be the same thing...
[17:29:36] <FloppyDisk> I just didn't know...
[17:30:12] <bobo_> let me look and geet back
[17:31:46] <bobo_> let me look and get back to you
[17:31:57] <FloppyDisk> thanks - appreciate it.
[17:38:14] <andypugh> I updated my blog with the casting machining. http://bodgesoc.blogspot.co.uk/2016/01/holbrook5.html
[17:41:47] <Jymmm> that thing is frickin huge!!!
[17:42:28] <andypugh> It’s quite a small milling machine
[17:42:41] <Jymmm> "Yeah, screw normal clamps, gimme some 2x4" tubing instead!" lol
[17:43:16] <Jymmm> looks liek you used an impact wrench to tighten it down too =)
[17:43:43] <andypugh> No, I don’t actually own one.
[17:44:24] <Jymmm> neither do I, just a 4 and 6ft "equalizer" =)
[17:45:12] <Jymmm> andypugh: nice job!
[17:57:39] <pink_vampire> http://catalog.powertechcontrols.com/item/all-categories-products-hmi-touchscreens/idec-smarttouch-displays/hg4f-jt22tfw?&bc=100|1002|2550|1095
[17:57:49] <pink_vampire> what do you think?
[17:58:04] <pink_vampire> it's look nice.. but just 600x800
[17:59:47] <FloppyDisk> How would you use that with LinuxCNC? It's made to communicate via a PLC protocol, such as modbus.
[18:00:27] <FloppyDisk> While LCNC has a modbus interface, that is not really the best way (or intended) way to work w/ LCNC.
[18:01:08] <FloppyDisk> I still think you need an elo touchscreen from ebay ($150) and a PC, whatever the latest flavor is for around $200 new or an ebay one for less.
[18:04:40] <CaptHindsight> looking for a motor speed controller that has velocity mode, adjustable ramp up/down and digital readout, you'd think that this would be easy to find turnkey
[18:06:28] <FloppyDisk> what kind of motor? Like an ac motor or dc brushed? You can try www.kbelectronics.com. They might have something.
[18:07:00] <CaptHindsight> doesn't matter +-10V out, looking for the control vs the drive
[18:07:04] <FloppyDisk> Thinking outloud, I don't recall a stepper motor or servo drive that would do that. But a VFD...
[18:08:00] <FloppyDisk> Oh - you're looking for a pot w/ +-10vdc output to run your drive.
[18:08:43] <CaptHindsight> digital pot with settable velocity and ramp up/down
[18:10:03] <CaptHindsight> might be a AC servo, BLDC or mini brushed DC motor
[18:10:35] <FloppyDisk> I did a little googling and arduino comes up... Or this type of thing: http://lechacal.com/wiki/index.php/Stepper_control_generic
[18:10:41] <FloppyDisk> But, not really what you're looking for.
[18:11:01] <CaptHindsight> mope, you'd have to write the GUI and also wrote the ramping
[18:11:17] <CaptHindsight> wrote/write
[18:11:29] <CaptHindsight> I think you're missing the details
[18:11:51] <FloppyDisk> What I think I'm missing is I don't know what can do that off the shelf...
[18:12:13] <CaptHindsight> what I'm trying to find vs build
[18:12:31] <FloppyDisk> You want more of limited motion controller w/ a readout. Seems very specialized.
[18:13:32] <CaptHindsight> http://www.parkermotion.com/products/Controllers__7308__30_32_80_567_29.html
[18:14:31] <FloppyDisk> There just aren't a lot like that... There's the old RP240 to go w/ the 6000 series products, but $$$...
[18:15:02] <FloppyDisk> From parker. - BTW, I have a 6k4 (or 2) in my garage, no readout, though.
[18:15:02] <CaptHindsight> <$1K preferably
[18:18:56] <CaptHindsight> lets say you want to control the speed of a conveyor belt and also the ramp up/down
[18:22:04] <FloppyDisk> VFDs... They have ramp up/down settings that are settable.
[18:22:19] <FloppyDisk> Otherwise, a small plc + hmi type thing like unitronics: http://www.unitronics.com/plc-hmi/plc-vision/v120-
[18:27:06] <CaptHindsight> yeah, I was trying to get away from having to program yet something else
[18:29:23] <andypugh> CaptHindsight: As has been mentioned, this is standard behaviour for a VFD. An some VFDs can drive brushed or brushless motors and servos too. I am thinking especially of the Control Techniques Unidrive.
[18:30:19] <FloppyDisk> Plus, some of them have encoder feedback (I think) for really const motion. The CTC (control techniques) is good stuff.
[18:31:30] <CaptHindsight> andypugh: what I don't see is how to easily set the ramp along with the speed
[18:32:33] <andypugh> My cheap VFD has all sorts of options that I have ignored. They looked like what you describe, but to be honest I didn’t pay much attention.
[18:33:50] <FloppyDisk> Some of the drives have some inputs where you 'might' be able to run in another poteniometer for the ramp settings. How you 'see' it is another issue.
[18:34:31] <CaptHindsight> looks like I will have to program something
[18:35:01] <CaptHindsight> especially to be human readable by a non-programmer
[18:36:03] <CaptHindsight> Set Ramp Rate :_______ , Set Motor Speed: _______, Dwell Time: ______
[18:36:17] <CaptHindsight> Start, Stop
[19:02:39] <enleth> CaptHindsight: I'm pretty sure Nanotec can give you that
[19:03:04] <enleth> CaptHindsight: driving conveyor belts is one of the use cases they list
[19:03:56] <CaptHindsight> sure they all do, they just require programming :)
[19:04:57] <enleth> I meant out of the box
[19:05:23] <enleth> How much power do you need there?
[19:05:32] <enleth> You said "mini brushed DC motor"
[19:05:51] <CaptHindsight> it doesn't matter, I just want the controller
[19:06:04] <CaptHindsight> pwm or +-10v out
[19:06:20] <CaptHindsight> drivers might vary based on the motor
[19:06:36] <enleth> Ah, OK, now I get it
[19:07:03] <CaptHindsight> ac or dc servo, BLDC, brushed hobby dc etc
[19:07:41] <CaptHindsight> without feedback it easy
[19:09:18] <enleth> OK, so nanotec is out, they make drives with integrated position/velocity control but no separate control boards
[19:10:48] <CaptHindsight> http://www.omega.com/pptst/OMDC-MD.html is close but missing the control of ramp rate
[19:12:41] <thesaint> andypugh, excellent write up on your blog, very interesting, thanks!
[19:13:31] <CaptHindsight> ah hah, it does allow you to set the accell and decell
[19:14:15] <CaptHindsight> but is that only for tuning?
[19:16:16] <thesaint> night guys, cheers!
[19:22:04] <CaptHindsight> yup, for tuning
[19:22:44] <CaptHindsight> I can't find people to take my money :( for things I need
[19:39:34] <pink_vampire> someone have an idea for icon for servo motor?
[19:42:13] <bobo_> FloppyDisk: Have been lookng for what JT had as a pdf on best wiring for noise, but so far no luck. bet I have lost it already
[19:46:37] <FloppyDisk> ok.. thanks for looking.
[19:48:45] <bobo_> FloppyDisk: have been looking for JTs PDF on best wiring for noise ,but cant't find it. I may have lost it. may I suggest asking JT
[19:48:57] <FloppyDisk> ok - thanks.
[19:51:31] <Tom_itx> bobo_, you need a copy of it?
[19:51:52] <FloppyDisk> Tom_itx - i was hoping for a copy of it... I have noise as well.
[19:52:17] <Tom_itx> lemme see if i put it on this pc
[19:54:37] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/best_practices.pdf
[19:54:41] <Tom_itx> try that
[19:54:55] <Tom_itx> i probably won't leave it there so grab it
[19:55:08] <FloppyDisk> downloading in 2 mins, thanks!
[19:55:38] <Tom_itx> lemme know when you got it
[19:55:50] <FloppyDisk> almost... can't find the right folder:-( 2 more secs
[19:56:10] <bobo_> FloppyDisk:have been looking for JTs PDF ,but I must have lost it. may I suggest asking JT
[19:56:13] <FloppyDisk> got it! thanks...
[19:56:46] <Tom_itx> bobo_ you need it too?
[19:57:02] <FloppyDisk> Oh,wow, I'm gonna have to read it:-) Thank you
[19:58:23] <FloppyDisk> Hmmm, I had the link all along, wasn't sure it was it or not:-(
[19:58:24] <FloppyDisk> http://literature.rockwellautomation.com/idc/groups/literature/documents/at/motion-at004_-en-p.pdf
[19:58:26] <chupacabra> gives me a 404
[19:58:38] <FloppyDisk> Use mine above, direct from the source!
[19:58:44] <chupacabra> k cool
[19:59:08] <FloppyDisk> I got it from Bertho on the mailing list, wasn't sure it was the same guide or not - it is.
[20:03:32] <bobo_> FloppyDisk: I can't find JTs pdf, think I have lost it. very sorry but may I suggest asking JT
[20:04:34] <FloppyDisk> I think we have it and my link I think is it... If I see jt-shop on I can ask if that was the one. thanks.
[20:09:32] <bobo_> and I think his may be the same as your link. hope I am correct
[20:15:10] <bobo_> thanks for posting the link.have saved the pdf again.
[20:17:07] <pink_vampire> http://i.best-wallpapers.us/r4837d-728-.jpg
[20:18:00] <zeeshan> cool picture
[20:18:01] <zeeshan> :)
[20:20:24] <Jymmm> PUMP UP THE VOLUME... http://i.imgur.com/oxK469N.jpg
[21:39:59] <CaptHindsight> http://www.gwinstek.com/en-global/products/Signal_Sources/Arbitrary_Function_Generators/AFG-2100_AFG-2000 $300 + a $100 servo amp
[22:44:06] <Denkishi> Any one have any expierence with FANUC P-145 paint robots? Specifically one that is constantly blowing axis 5 servo?