#linuxcnc | Logs for 2014-06-08

[00:00:00] <XXCoder1> gonna love disconnects
[00:00:21] <XXCoder1> CaptHindsight: ?
[00:11:45] <CaptHindsight> XXCoder1: whats up?
[00:12:14] <XXCoder1> ammnit forgot to ask question...
[00:12:17] <XXCoder1> oh yeah!
[00:12:20] <XXCoder1> a sec
[00:13:24] <XXCoder1> would 5.8 in wide gantry be enough?
[00:13:32] <XXCoder1> rigid forward abnd back wise
[00:14:33] <XXCoder1> er deep? sorry not too sure what word to use. when youre facing the gantry with router in front, I am talking about how long gantry is from front o back
[00:15:37] <CaptHindsight> I'd have to see the dimensions
[00:16:32] <CaptHindsight> stiffer the better
[00:16:46] <XXCoder1> okay its around foot tall, 2' 4" wide, and 5.8 in long
[00:17:28] <XXCoder1> sides will be double walled, seperated by inch or so with some supports between. would act like over 3 inches thick
[00:21:28] <XXCoder1> https://dl.dropboxusercontent.com/u/53432577/cncidea2.png
[00:21:37] <XXCoder1> I havent done some stuff like build table surface
[00:21:47] <XXCoder1> but it should show gantry shape
[00:22:20] <XXCoder1> I havent put in bottom wall for gantry either, it will be below SBR rails and will help it be even more rigid.
[00:24:15] <CaptHindsight> you're moving lots of mass there
[00:24:36] <XXCoder1> not much of a choice. it is as wide as it is long
[00:25:22] <XXCoder1> the longest dimestion, its width, is 2 ft and 6 in
[00:25:24] <CaptHindsight> that's the trade-off if you can't make the table travel
[00:25:33] <XXCoder1> one foot tall
[00:25:51] <XXCoder1> yeah I plan to make fixed gantry version when that ones done. to compare
[00:26:45] <CaptHindsight> bbl
[00:27:05] <XXCoder1> its height is uncertain, I can make it shorter if needed. less mass is nice too
[00:50:23] <XXCoder1> wb
[01:29:30] <XXCoder1> yo
[02:09:59] <Deejay> moin
[02:50:16] <zeeshan|2> FINALLY
[02:50:19] <zeeshan|2> got this damn hub done
[09:31:55] <CaptHindsight> trying to get this touch screen stable in 12.04 xubuntu, Linuxcnc starts up fine using the mouse every time. As soon as you use the touch screen it tries to start and freezes as the Axis window pops up
[09:32:41] <XXCoder1> bad driver?
[09:32:49] <XXCoder1> morning btw
[09:32:54] <CaptHindsight> the axis taskbar has (no file) in it when it freezes with just the screen background in the window
[09:33:18] <CaptHindsight> no info in the console and it doesn't have a crash report
[09:34:49] <XXCoder1> I dont get it, how you start program shouldnt matter
[09:35:05] <XXCoder1> try start linuxcnc by command line see if theres any strange issues that way too
[09:36:03] <CaptHindsight> it's only when I use the touch screen
[09:36:34] <CaptHindsight> using a desktop icon or by using the menu
[09:36:50] <XXCoder1> if you use touch screen before starting linuxcnc then use mouse to start linuxcnc does it load just fine?
[09:37:06] <CaptHindsight> the desktop icon starts linuxcnc in a console
[09:37:36] <CaptHindsight> it's start fine when using the mouse, in any order
[09:38:13] <CaptHindsight> I also added linuxcnc to the startup and it starts up fine every time
[09:38:22] <XXCoder1> any issues if you use touch screen after linuxcnc started, say to use stuff
[09:39:18] <CaptHindsight> it only causes Linuxcnc to freeze at startup
[09:39:52] <XXCoder1> found june 2013 post on it
[09:40:04] <XXCoder1> http://www.linuxcnc.org/index.php/french/forum/18-computer/26650-touchscreen-with-linuxcnc
[09:44:08] <CaptHindsight> I should probably go back to using a 4-5 wire resistive vs cap touch
[09:46:07] <XXCoder1> till someone figure it out maybe
[09:46:09] <XXCoder1> oh yeah
[09:46:13] <XXCoder1> https://dl.dropboxusercontent.com/u/53432577/cncidea3.png
[09:46:51] <XXCoder1> gantry is little too short to fit my Z axis and that Z axis holder wood need to be wider and taller but besides its pretty close.
[09:48:18] <CaptHindsight> 14.04 works better but there are no linuxnc packages yet
[09:49:42] <XXCoder1> the more specialized software is, the slower progress heh
[09:51:29] <CaptHindsight> the scheduler in RTAI is broken for kernels newer than 3.4
[09:54:18] <CaptHindsight> so progress is at a halt until RTAI gets fixed
[09:55:26] <XXCoder1> hope it gets fixed soon
[09:55:39] <XXCoder1> what ya think of latest pic tough
[09:55:48] <CaptHindsight> XXCoder1: so when does your actual build begin?
[09:56:03] <XXCoder1> as soon as I buy a drill press
[09:59:33] <CaptHindsight> http://www.pbclinear.com/images/blog/InvertedBearings.jpg
[10:00:50] <XXCoder1> yeah so if router move too fast while cutting in least one side would get correct load and other side, one being pulled up, would get 40%
[10:00:56] <CaptHindsight> If your bearing blocks don't have enough bearings don't use them
[10:01:57] <CaptHindsight> that pic ^^ shows the load capacity for SBR at 3 different orientations
[10:02:12] <CaptHindsight> with proper bearing blocks
[10:02:30] <XXCoder1> yeah thats what I was talking about with 40% and all :)
[10:02:46] <XXCoder1> got pic of non-chinese bearings?
[10:03:39] <CaptHindsight> http://www.pbclinear.com/Metric-Open-Linear-Ball-Bearing-Pillow-Block-%28EPPMN%29
[10:07:07] <XXCoder1> looking
[10:07:31] <XXCoder1> inside bearing parths seem same as mine
[10:08:25] <XXCoder1> HMM I got an idea
[10:08:36] <XXCoder1> use my shitpad as pendant for my cnc lol
[10:08:45] <XXCoder1> its good for very little else.
[10:09:22] <XXCoder1> I can easily do android side programming but linuxcnc I has no idea.
[10:10:10] <CaptHindsight> remote display/UI
[10:12:09] <XXCoder1> nah it cant do remote display, its very crappy
[10:15:39] <XXCoder1> cci: stop pming me
[10:17:04] <XXCoder1> fine. ignored
[10:19:47] <XXCoder1> CaptHindsight: I dont know why some people always go ask questions in pm
[10:20:06] <CaptHindsight> shy
[10:20:08] <XXCoder1> and presit even when I said I dont know and stop
[10:20:37] <CaptHindsight> asperger, autisim, ?
[10:20:42] <XXCoder1> someone linked me this http://openbuildspartstore.com/v-slot/
[10:20:49] <XXCoder1> not bad but bit small I think
[10:22:34] <XXCoder1> and weak
[10:26:48] <CaptHindsight> XXCoder1: PBC has a much better selection and quality
[10:27:11] <XXCoder1> http://www.pbclinear.com/ ?
[10:27:20] <CaptHindsight> yeah
[10:28:06] <CaptHindsight> http://www.pbclinear.com/SIMO-Series-Components---CRT
[10:28:15] <XXCoder1> dont see any beams kinda like 80/20 there?
[10:28:20] <CaptHindsight> where makerslide got their idea
[10:28:39] <XXCoder1> oh quite nice
[10:29:08] <CaptHindsight> http://www.pbclinear.com/SIMO-Series-Components---PRT
[10:29:18] <XXCoder1> that guy and me was talking about 8020 type beams :) but I already decided my next cnc will be made from that 1,399 kit 2'x3' 8020 machine
[10:30:05] <XXCoder1> http://www.finelineautomation.com/products/complete-2-x3-router-kit
[10:30:27] <XXCoder1> 1,599 actually hmm
[10:31:10] <CaptHindsight> depends on what your budget and desires are
[10:32:00] <XXCoder1> indeed
[10:32:16] <XXCoder1> hell who knows my first cnc might work fine for long while lol
[11:05:27] <Jymmm> cradek: Convert (YX) data to postscript graphs and 3D Plotting of pictures http://www.physics.emory.edu/faculty/weeks//graphics/psdraw.html
[12:05:49] <Jymmm> If I have a round object of unknown diameter, but I have the ability to draw/mark in the circumference 370 degrees (basically overlapping, much like wrapping a seamstress tape measure around your waist) is there a "scale" of sorts that can be universally known/used for marking on the object that can determine it's circumference? I'm thinking something degree related instead of actual length UOM.
[12:08:46] <zeeshan|2> Jymmm: instead of finding the cicumference like trhat
[12:08:57] <zeeshan|2> can you just find the diameter first and calculate cicumference?
[12:09:02] <Jymmm> no
[12:09:08] <zeeshan|2> cause if you can, then you can use find 2 chords
[12:09:16] <zeeshan|2> and know diameter and know cicumference
[12:09:39] <Jymmm> no
[12:10:31] <IchGuckLive> hi all B)
[12:10:38] <Jymmm> This is basically a 4th rotary axis, and need to also determine it's alignment, and the object's alignment too.
[12:10:41] <IchGuckLive> its rekordbraking hot here in germany
[12:11:22] <IchGuckLive> maZer`-: ?
[12:11:24] <Jymmm> I know this is a trig thing, I just don't know trig =)
[12:11:39] <zeeshan|2> oh i guess i didnt understand the problem
[12:11:48] <Jymmm> it's all good =)
[12:11:48] <zeeshan|2> you're saying you want to convert degree movements to cicumference?
[12:12:05] <Jymmm> in a sense, yes.
[12:12:09] <zeeshan|2> okay
[12:12:19] <Jymmm> but has to scale from ~1" to ~12"
[12:12:21] <zeeshan|2> http://www.mathwarehouse.com/trigonometry/radians/images/picture-s=r-theta-circle.gif
[12:12:26] <zeeshan|2> you can use arc length
[12:12:31] <zeeshan|2> as long as the center of rotation doesnt change
[12:12:45] <zeeshan|2> you can be confident that r theta gives you the cicumference
[12:13:08] <IchGuckLive> XXCoder1: did it move on auto g-code or still in the box
[12:13:15] <zeeshan|2> theta is in radians btw.
[12:13:16] <zeeshan|2> not degree
[12:13:20] <zeeshan|2> so you'll have to covnert it
[12:13:25] <XXCoder1> IchGuckLive: sorry what?
[12:13:29] <XXCoder1> and hey
[12:13:39] <IchGuckLive> [15:14:17] <XXCoder1> hell who knows my first cnc might work fine for long while lol
[12:13:39] <Jymmm> zeeshan|2: I have nfc what that other than pacman =)
[12:13:48] <Jymmm> ^is
[12:14:01] <zeeshan|2> r is the distance to whatever object youre measuring
[12:14:02] <XXCoder1> oh it was about my cnc thats currently in design
[12:14:07] <zeeshan|2> (i guess your rotary table radius)
[12:14:18] <zeeshan|2> theta is the degree ie 10 degrees converted to radians
[12:14:19] <Jymmm> zeeshan|2: and s ?
[12:14:30] <zeeshan|2> s is the arc length
[12:14:36] <IchGuckLive> XXCoder1: you will be the man of the year if you retch a runnning system
[12:14:45] <zeeshan|2> if you find s for 360 degrees, you would have cicumference
[12:14:56] <XXCoder1> https://dl.dropboxusercontent.com/u/53432577/cncidea4.png IchGuckLive
[12:15:08] <Jymmm> zeeshan|2: but the circumerfence is unknown
[12:15:08] <IchGuckLive> XXCoder1: idee 4
[12:15:16] <XXCoder1> it has couple problems, Z axis is too recessed for one but otherwise pretty good.
[12:15:24] <zeeshan|2> Jymmm: but angle is known
[12:15:37] <zeeshan|2> and im sure you know the radius of the rotary table
[12:15:50] <zeeshan|2> so if you jog your table 10 degrees
[12:15:51] <IchGuckLive> XXCoder1: sice you joint us i might have build in real about 30+ mashines here
[12:15:51] <XXCoder1> the curved boxes is SBR rails and black boxes is ballscrew (yes, i know its much thinner and round, its just general dimension)
[12:15:55] <Jymmm> zeeshan|2: 360 or 370
[12:15:58] <zeeshan|2> and your rotary table was 12
[12:16:08] <Jymmm> 12?
[12:16:14] <zeeshan|2> (in diameter)
[12:16:24] <Jymmm> zeeshan|2: No, I don't know that.
[12:16:36] <zeeshan|2> why not! :P
[12:16:55] <Jymmm> zeeshan|2: cause that's what I'm trying to determine *SMACK*
[12:17:00] <IchGuckLive> XXCoder1: budget from 150-6000
[12:17:13] <XXCoder1> lol cool. mines bit over 1k so far
[12:17:14] <zeeshan|2> you said you're trying to determine cicumference
[12:17:23] <Jymmm> Yes
[12:17:33] <XXCoder1> anyway gonna run, be bacjk
[12:17:46] <IchGuckLive> ;-)
[12:17:53] <zeeshan|2> diameter is different than cicumference! :P
[12:18:04] <Jymmm> yes
[12:18:19] <IchGuckLive> maZer`-: ?
[12:18:29] <Jymmm> zeeshan|2: the only consistancy is 360 degrees around.
[12:19:18] <Jymmm> zeeshan|2: If s from 0-45 is 1", from 45 to 270 it could be 6" for all I know
[12:19:39] <zeeshan|2> 1" is the distance from the center of the circle
[12:19:42] <zeeshan|2> to the object?
[12:19:59] <Jymmm> zeeshan|2: I need to take those two numbers and find the circumferance of the object.
[12:20:07] <zeeshan|2> oh
[12:21:02] <zeeshan|2> if that is the same object
[12:21:13] <zeeshan|2> then you can use either one of those information
[12:21:25] <zeeshan|2> to find out the the 'r' in the s = r * theta formula
[12:21:36] <zeeshan|2> and then just do s = the known r * 360
[12:21:39] <zeeshan|2> to get cicumference
[12:21:53] <Jymmm> zeeshan|2: I need the formula long hand
[12:22:07] <zeeshan|2> you gotta tel lme what 1" is first
[12:22:07] <Jymmm> algabric notation
[12:22:19] <Jymmm> zeeshan|2: it's unknown
[12:22:52] <zeeshan|2> you need to know either how far the object is from the center of the circular rotation
[12:22:55] <Jymmm> 1" is the arc length fro 0 to 45 degrees
[12:23:06] <zeeshan|2> or the arc length the object moves during that angular movement
[12:23:17] <Jymmm> 4" is the arc length from 45 to 270 degrees.
[12:23:18] <zeeshan|2> to determine the cicuferemce
[12:23:34] <Jymmm> what is the circumference?
[12:24:18] <zeeshan|2> arc length (s) = radial distance to object from center (r) * angular movement (theta)
[12:24:53] <Jymmm> Yeah, doesnt' help me in the least unless it's long hand
[12:25:21] <Jymmm> all I can do is determine the degree of rotation on a round object.
[12:25:40] <zeeshan|2> r = s/theta = 1" / (45*pi/180)
[12:25:48] <zeeshan|2> the pi/180 is converting degrees to radians
[12:25:57] <Jymmm> what is theta?
[12:26:05] <zeeshan|2> 45
[12:26:16] <zeeshan|2> the angular distance you moved
[12:26:21] <Jymmm> ok
[12:26:25] <zeeshan|2> in the case of 45 to 270
[12:26:26] <zeeshan|2> it'd be
[12:26:35] <zeeshan|2> 270-45 = 225
[12:26:53] <zeeshan|2> so when you solve this equation r = s/theta = 1" / (45*pi/180)
[12:27:01] <zeeshan|2> you get r = .785398
[12:27:44] <IchGuckLive> zeeshan|2: what is the overall goal to meet this calculations
[12:28:38] <zeeshan|2> IchGuckLive: one sec
[12:28:41] <zeeshan|2> so since now you know r
[12:28:54] <zeeshan|2> you can do cicumference = 2*pi*radius
[12:29:18] <zeeshan|2> which just comes from the formula s = r * theta = r * 360*pi/180
[12:29:26] <zeeshan|2> since there are 360 degrees in a full rotation
[12:29:35] <zeeshan|2> i hope it makes sense =/
[12:30:11] <zeeshan|2> IchGuckLive: i think he knows angular movement and how much the object moves in the arc path
[12:30:17] <zeeshan|2> and he needs to know cicumference based on that
[12:30:21] <CaptHindsight> guess I'm stuck with Unity since the touchcsreen problem doesn't happen there, only in XFCE
[12:32:19] <Jymmm> zeeshan|2: I screwed up (in part).
[12:32:23] <IchGuckLive> zeeshan|2: thanks someone did a hell on the cut a circal in a tube on Rotation move and i did a little g-code sub on that
[12:34:21] <zeeshan|2> Jymmm: how
[12:34:57] <Jymmm> zeeshan|2: In the drawing of the unknown part, a circle determines the circumference of the object. But since it's unknown, the circle diameter is also unknown. I guess it would have to eb the ratio of two circles that determine the circumference.
[12:35:13] <zeeshan|2> ohhh
[12:35:19] <zeeshan|2> if thats ALL you know
[12:35:45] <zeeshan|2> 0 to 45 -> 1" arc , and 45 to 270 -> 4" arc
[12:36:01] <zeeshan|2> actually
[12:36:06] <zeeshan|2> you dont know its 1" arc or 4" arc
[12:36:25] <Jymmm> not till a mark is made, corect
[12:36:43] <zeeshan|2> i honestly would need to see the problem :{
[12:36:53] <zeeshan|2> post it on imgur!
[12:39:27] <Jymmm> Ok, when you add a rotary fixture, instead of linear motion, you get what?
[12:40:32] <Jymmm> polar coordiants?
[12:40:42] <zeeshan|2> yes
[12:41:06] <zeeshan|2> you can represent everyting in terms of
[12:41:08] <Jymmm> Ok, in cad you draw a random circle
[12:41:08] <zeeshan|2> 'r and theta'
[12:41:18] <Jymmm> with me so far?
[12:41:22] <zeeshan|2> yes
[12:41:42] <Jymmm> Ok, you know nothing about that circle other than it's round.
[12:41:49] <zeeshan|2> ok
[12:42:10] <Jymmm> But you DO know that from 0 to 180 is half the circumference
[12:42:17] <zeeshan|2> yes
[12:43:42] <Jymmm> ok, so, I need to be able to draw a unknown circle in cad, and then place that unknown circle(s) on the rotary object, then tell it to mark on the object 360 degrees.
[12:44:44] <Jymmm> I can then measure the difference of two marks 0-180 and 0-360 *for example) to determine the circumference.
[12:45:27] <archivist> arse backwards methods!
[12:45:31] <zeeshan|2> lol
[12:46:39] <zeeshan|2> archivist: give me your level
[12:46:42] <zeeshan|2> you have too many.
[12:47:18] <zeeshan|2> what do you mean by 'tell it to mark on the object 360 degrees.'
[12:48:50] <Jymmm> To give the operator a reference point
[12:49:15] <Jymmm> of where 180 degrees is on the object
[12:49:34] <zeeshan|2> it seems like you have all the angular information
[12:49:41] <zeeshan|2> but you're missing a piece of information
[12:50:23] <zeeshan|2> ie how far the unknown circle's center is from the rotary object's center
[12:50:24] <Jymmm> all I can do is rotate the object (of unknown diameter)
[12:50:55] <archivist> measure the effin diameter
[12:51:09] <Jymmm> but I can rotate it exactly 180 degrees
[12:51:22] <ChuangTzu> so how do you measure between 0 and 180?
[12:51:34] <ChuangTzu> why couldn't you just measure between 0 and 360 the same way without marking?
[13:23:08] <archivist> this set up http://www.dockmuseum.org/detail.php?t=objects&type=browse&f=CATEGORY1&s=VISUAL+WORKS&record=1086
[13:31:16] <maZer`-> is there a way to couple a input pin of mesa to m-command?
[13:32:45] <Deejay> hi mazer
[13:33:32] <maZer`-> hi Deejay :D
[13:33:51] <cpresser> maZer`-: there are custom-m-codes. M101 and so on
[13:40:15] <cpresser> then i dont see any use for it in auto-mode!?
[13:40:58] <maZer`-> yes but, if the g-code is requesting another tool i want that machine drives to a point and waiting until i change tool :(
[13:41:12] <XXCoder1> whoo
[13:41:19] <maZer`-> but thats another problem :d
[13:41:20] <XXCoder1> my car is so much better after antilock
[13:41:58] <cpresser> then dont implement that stuff as a M-Code. use semi-automatic toolchanging. http://linuxcnc.org/docs/html/hal/hal-examples.html
[13:42:04] <XXCoder1> I really took it out of town with very hard acceration that took rpm to 6k (redline 7k, I normally never even reach 3k)
[13:42:45] <XXCoder1> no errors. :) heres hoping it runs fine for month or 21
[13:42:47] <XXCoder1> 2
[13:43:12] <maZer`-> cpresser ahh sounds very nice :D
[13:44:26] <maZer`-> cpresser but i need the pin to change tool for this too
[13:45:55] <maZer`-> is there a way to bind a pin directly to a shell script? :D
[13:46:01] <cpresser> you can use a 'or' component for that. if either iocontrol (M6) or you (Button) requests a tool-change -> release the clamp
[13:46:51] <maZer`-> yes ok
[16:00:53] <XXCoder> jsskangas: cool
[16:03:49] <jsskangas> Thanks
[16:04:09] <XXCoder> first time I see that type of machine
[16:04:18] <XXCoder> bit odd looking
[16:05:06] <jsskangas> heh
[16:05:30] <jsskangas> its a normal 3 axis machine with nikken table
[16:05:58] <jsskangas> but now it does not have covers
[16:06:09] <XXCoder> ok
[16:15:16] <jsskangas> its an old mori seiki mv junior
[16:16:23] <humble_sea_bass> http://irclo.gr/i/149193/YruzEyw.gif
[16:16:27] <humble_sea_bass> chip load
[16:17:17] <XXCoder> thats a great gif
[16:17:28] <humble_sea_bass> the best on i've ever seen i think
[16:17:40] <humble_sea_bass> informative and entertaining
[16:20:47] <Loetmichel> which material is that? Ti?
[16:20:55] <XXCoder> So
[16:21:07] <Loetmichel> or simple cast iron?
[16:21:10] <XXCoder> or was it Si? forgot :P
[16:23:02] <Loetmichel> seems to be very brittle
[16:23:24] <humble_sea_bass> yuh. lots of chipping
[16:24:22] <Loetmichel> i can remeber turning steels where i had to hook into the swarf with a hook and run across the company
[16:24:38] <Loetmichel> ... longest we got was a single coil about 30 meters long ;-)
[16:25:20] <XXCoder> screwy. metheodually and literally.
[16:25:29] <humble_sea_bass> i like how you use the phrase *had to*
[16:25:54] <Loetmichel> because if wei dont draw the chips pit it would block the machine
[16:25:57] <Loetmichel> eventually
[16:26:12] <Loetmichel> s/pit/out
[16:26:40] <XXCoder> pit out ok ;)
[16:42:37] <ChuangTzu> so you made a 30 foot long razor wire
[16:42:46] <ChuangTzu> and strung it up across your shop floor
[16:42:50] <ChuangTzu> :)
[16:43:45] <XXCoder> fancy.
[16:44:14] <ChuangTzu> 30 meter
[16:48:50] <Deejay> gn8
[17:03:39] <XXCoder> https://dl.dropboxusercontent.com/u/53432577/cncidea5.png
[17:03:42] <XXCoder> https://dl.dropboxusercontent.com/u/53432577/cncidea6.png
[17:03:56] <Loetmichel> ChuangTzu: something in that ballpark
[17:03:56] <XXCoder> #5 has few parts hidden to show rails and screws
[17:04:15] <XXCoder> #6 is where I am at now, still no Z plate with router
[17:07:16] <XXCoder> woot
[17:08:00] <XXCoder> easy enough to modify gantry width from 248 mm to 240 mm to make z screws and blocks past gantry walls
[17:08:24] <Loetmichel> XXCoder: i dont liket the desings where the machine table is "levitating" above the y rails
[17:08:36] <XXCoder> its not
[17:08:40] <XXCoder> its supported at ends
[17:08:41] <Loetmichel> i am more for a design with two y rails
[17:08:49] <Loetmichel> grrr
[17:08:53] <Loetmichel> i meant in between that
[17:09:13] <XXCoder> oh I dont see how to support work surface otherwise?
[17:09:30] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11205
[17:09:32] <Loetmichel> this way
[17:09:48] <Loetmichel> use two y spindles and connect them
[17:09:59] <Loetmichel> so you can omit the bar underneath
[17:10:11] <XXCoder> I only have one X axis screw
[17:10:25] <Loetmichel> buy a second?
[17:10:30] <XXCoder> well
[17:10:42] <XXCoder> would also mnean I have to buy other nema 23
[17:10:52] <Loetmichel> but do as you please, i dint want to call you names, just wanted to give advice
[17:10:54] <XXCoder> can them be connected together or do I have to add something
[17:11:21] <Loetmichel> the big box that is the work surface on "my" machines makes the machine MUCH stiffer
[17:11:37] <XXCoder> yeah my design do have bit issue
[17:11:42] <XXCoder> gantry is extremely stiff
[17:11:47] <XXCoder> work surface not so much
[17:11:54] <Loetmichel> that is what i meant
[17:12:14] <Loetmichel> i see the caveats at work every day because boss only paid for a CNC 6040
[17:12:23] <Loetmichel> whcih has the same design flaw
[17:12:58] <XXCoder> well I did plan to add yet another wood surface on top of that one
[17:12:59] <Loetmichel> btw: the one screw in y has also the ptoblem that the gantry can tilt more or less easily
[17:13:01] <XXCoder> surifical one
[17:13:36] <XXCoder> even with SBR20 rails?
[17:13:46] <Loetmichel> if you have two screws left and right connected by a timing belt there is NO way that the gantry can get out of alignment
[17:14:09] <Loetmichel> depends more or less on the distance of the bearing blocks on the rails
[17:14:54] <Loetmichel> the "deeper" the gantry sides are the less the chance of forces pushing it out of 90°
[17:15:32] <XXCoder> unfortunately my budget is extremely locked down now :(
[17:15:50] <Loetmichel> have youi seen my photo?
[17:15:53] <XXCoder> even with recent anti-lock addon that really helepd my car tranmission, it still has serious problems
[17:15:55] <XXCoder> yeah
[17:16:18] <Jymmm> XXCoder: Don't eat, you could lose a few pounds anyway.
[17:16:45] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11172
[17:16:46] <XXCoder> lol
[17:16:58] <Loetmichel> there you can see the belt at the back that connects the two screws
[17:17:05] <Jymmm> XXCoder: And walk to work, thaty'll save on gas, as well as wear and tear
[17:17:08] <Loetmichel> (not mounted yet)
[17:17:30] <XXCoder> Jymmm: forget that. 32 min drive means 640 min walk :P
[17:17:36] <XXCoder> I see it
[17:17:46] <Jymmm> XXCoder: GIT ER DONE!
[17:18:24] <Loetmichel> on my old machine i did that a bit more sophisticated then necesssary
[17:18:33] <Jymmm> XXCoder: shower and Sleep in the dumpster at work, that will save you on rent and utilities
[17:18:38] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=7080
[17:18:42] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=7086
[17:18:53] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=7074&g2_imageViewsIndex=1
[17:18:55] <Loetmichel> :-)
[17:18:57] <XXCoder> fancy lol
[17:19:32] <Jymmm> Loetmichel: what is it?
[17:20:00] <Loetmichel> Jymmm: connectng belt for the two y spindles
[17:20:03] <Loetmichel> connecting
[17:20:11] <Jymmm> ah
[17:20:26] <Loetmichel> on the back of the machine
[17:20:39] <Loetmichel> on the front there are 2 steppers wiht short belts
[17:20:59] <XXCoder> loet good thing I can get unlimited scrap wood from work
[17:21:05] <XXCoder> and they throw a LOT away
[17:21:16] <XXCoder> so I can get it to riciously thick table
[17:21:17] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=4403&g2_imageViewsIndex=1
[17:21:31] <XXCoder> 5 inches thick. why not? Just rise gantry a bit
[17:21:35] <Loetmichel> thats the front of that machine
[17:22:15] <XXCoder> so only one err I guess nema 34 on both screws
[17:22:39] <Loetmichel> no
[17:22:42] <Loetmichel> two
[17:22:51] <XXCoder> wired together?
[17:22:58] <Loetmichel> 50mm square, is that 34?
[17:23:17] <Loetmichel> no, 2 stepper drivers wired to the same step/dir inputs
[17:23:36] <Loetmichel> thats why that electronics bloch in the middle has 4 cards ;-)
[17:23:36] <XXCoder> thats what I meant :) one controller output to 2 motors
[17:24:09] <XXCoder> I dont have seperate drivers, the controller drives em directly
[17:24:19] <XXCoder> cheap one lol
[17:24:35] <XXCoder> 50mm is approx 2 in
[17:24:46] <XXCoder> nema 23?
[17:24:57] <XXCoder> that'd be 2.3 inch though so dunno
[17:25:14] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=4585&g2_imageViewsIndex=1
[17:25:25] <Loetmichel> there you can see the stepper(s)
[17:25:35] <Loetmichel> (please ignore my chaos) ;-)
[17:25:37] <XXCoder> it looks large enough to be 34
[17:25:54] <XXCoder> double side shaft I see
[17:26:10] <Loetmichel> the mounting screws are 50mm square
[17:26:57] <Loetmichel> searching, moment
[17:27:45] <XXCoder> oh I got X and Y axis mixed up or maybe thats just culture thing lol
[17:28:12] <Loetmichel> http://www.mechapro.de/shop/Schrittmotoren/Schrittmotor-Oriental-Motor-PK268-E3-0B::94.html
[17:28:15] <Loetmichel> got them
[17:28:31] <Loetmichel> no, x and y depends on where you are sitting
[17:29:01] <Loetmichel> if you are sitting on the smaller side "in front" the gantry moves in y.
[17:29:07] <XXCoder> I always thought the table axis is always X, gantry side to side Y, z is up and down
[17:29:16] <Loetmichel> if you sit on the long side the gantry moves in x
[17:29:56] <Loetmichel> like companys machine: http://www.cyrom.org/palbum/main.php?g2_itemId=14148
[17:30:37] <Loetmichel> x0y0 is on your left hand towards you. every time
[17:30:59] <XXCoder> it says 56 mm thats near 2.3 inches so nema 23. interesting
[17:31:05] <Loetmichel> so if you operate the maschine from the long side-> gantry moves in x.
[17:31:47] <XXCoder> isnt that fixed in cnc settings
[17:32:10] <Loetmichel> yeah, according to your point of view ;-)
[17:32:21] <XXCoder> cool
[17:33:10] <XXCoder> from what i figure best way is to just make table thicker. its first cnc, not expecting perfection
[17:33:27] <XXCoder> I already plan 2 sheets but could do 3
[17:33:32] <Loetmichel> yeah, htat is a way to do it
[17:33:41] <Loetmichel> but please dont make it solid
[17:33:51] <Loetmichel> that will be unnecessary heavy
[17:33:56] <XXCoder> makes sense
[17:33:57] <Loetmichel> make a sandwich
[17:34:01] <XXCoder> yummy
[17:34:18] <XXCoder> so sheet, some number of wood planks, then sheet again
[17:34:20] <Loetmichel> which looks this way inside: http://www.cyrom.org/palbum/main.php?g2_itemId=4053
[17:34:24] <XXCoder> adjusting for flatness would be fun
[17:34:25] <Loetmichel> yes
[17:34:35] <XXCoder> brb a sec
[17:34:42] <Loetmichel> let tha machine do that for you ;-)
[17:36:16] <Loetmichel> btw: here you can see the first day of building lilalinx' machine: http://www.cyrom.org/pce/Lilafraese_tag1.avi
[17:36:27] <Loetmichel> (should put that up to youtube some day)
[17:38:01] <XXCoder> hmm lol ok. should adjust to pretty close first though
[17:38:15] <XXCoder> dont wanna see hgalf gone by done lol
[17:38:23] <XXCoder> saw that video. nice
[17:39:58] <Loetmichel> ... one cig, next cig, another one... i was smoking way to much then ;)
[17:41:00] <XXCoder> probably so bad if you happenjed not to have one, they would accuse you of pretending to be... you? ;)
[17:42:19] <Loetmichel> i have switched to e-cigs last october. so far: not one "real" one since then ;-)
[17:42:45] <Loetmichel> my wife appreciates ;-)
[17:46:13] <t12> there seems to be a whole industry of high dollar shop built e-cigs
[17:46:21] <t12> people paying like 500+ usd for fancy ones
[17:46:35] <XXCoder> lol
[17:46:40] <XXCoder> any homebrews? :P
[17:46:52] <XXCoder> probabky needs wheels ;)
[17:58:24] <t12> my absurdist taig lathe is finally coming along
[17:58:40] <ChuangTzu> what's absurdist abou tit
[17:59:45] <t12> the amount of crap being attached to 500 dollars of lathe
[17:59:56] <t12> eventually there will be no more orig parts left
[18:00:02] <ChuangTzu> heh
[18:00:25] <t12> https://vimeo.com/97622268
[18:00:31] <t12> ignore terrible untuned servo sound
[18:00:38] <t12> https://vimeo.com/97622267
[18:01:15] <t12> 400W mitsu servo seems to keep up quite well
[18:02:17] <Loetmichel> *siiiing*
[18:02:31] <t12> maybe has more to do with poor alignment
[18:02:34] <t12> will find out
[18:02:44] <XXCoder> 500 buck lol
[18:02:55] <t12> maybe i should just stick with the mitsu controller cause of the adaptive tuning and such
[18:03:35] <XXCoder> why not use spidle not stepper for rotation?
[18:04:05] <Loetmichel> XXCoder: probably because steppers are less powerful and SLOW
[18:04:24] <XXCoder> exactly why I suggested it ;)
[18:04:27] <XXCoder> spidle
[18:04:44] <t12> next is figuring out all the ballscrew stuff
[18:04:55] <Loetmichel> XXCoder: i did threads on the chinese cnc6040
[18:05:05] <t12> the cross slide ballscrew is going to suck
[18:05:23] <Loetmichel> https://www.youtube.com/watch?v=yDcCyF_gVoY
[18:05:29] <Loetmichel> ... thakes a while, though
[18:05:31] <Loetmichel> ;-)
[18:05:33] <Loetmichel> -h
[18:06:20] <ChuangTzu> nice use of an optical breadboaqrd
[18:06:21] <ChuangTzu> -q
[18:06:22] <ChuangTzu> :)
[18:06:26] <t12> hahah
[18:06:31] <XXCoder> CRT driver apparently http://tubetime.us/?p=173
[18:06:34] <t12> seemd to be the cheapest way to get a nice flat board
[18:06:45] <t12> also lots of random thorlabs parts to use at work
[18:06:46] <XXCoder> click astroid mini arcade to see it running
[18:08:10] <ChuangTzu> what the hell is with that video of you picking up a pile of cash?
[18:08:16] <t12> lol
[18:08:25] <t12> not me!
[18:08:41] <t12> boss always jokes about the machine printing money
[18:08:45] <ChuangTzu> lol
[18:08:49] <ChuangTzu> whaqt does the machine do
[18:08:52] <ChuangTzu> besdies print money
[18:08:55] <ChuangTzu> god damnit
[18:08:57] <ChuangTzu> -d
[18:08:57] <t12> laser catapult ejector
[18:08:58] <ChuangTzu> -q
[18:09:14] <t12> i prolly shouldnt have that video public heh
[18:09:14] <ChuangTzu> what's a laser catapault ejector?
[18:09:39] <t12> orig it was for tissue selection
[18:09:48] <t12> confocally focus a laser through microscope objective
[18:10:01] <t12> and you can knock cells off a slide onto a collection plate
[18:10:09] <ChuangTzu> with the laser?
[18:10:11] <t12> yeah
[18:10:20] <t12> orig it was stuff like grow a sheet of cells
[18:10:32] <t12> find a way to tag or identify specific kinds of cells your looking for
[18:10:34] <t12> and use that to select them
[18:10:58] <ChuangTzu> are the cells on the bottom of the slide?
[18:11:04] <t12> in our case its beads
[18:11:06] <t12> but yeah
[18:11:49] <ChuangTzu> laser scans the plates until it finds a bead and then sends pulse that vaporizes a thin layer between the cell and the slide which makes it pop off?
[18:11:51] <t12> theres commecial systems that do this really well
[18:12:07] <t12> http://www.zeiss.com/microscopy/en_us/products/laser-microdissection/microbeam.html
[18:12:34] <t12> more generally the laser is fixed
[18:12:37] <t12> and you just move the slide around
[18:12:50] <ChuangTzu> yeah
[18:13:08] <t12> and the selection is out of band like via fluorescence
[18:13:23] <t12> the laser is steerable actually but it ends up not mattering
[18:13:39] <t12> the motion of whatever you collect into is the limiting factor it turns out
[18:13:45] <t12> so no point in steering the beam around
[18:14:06] <ChuangTzu> yeah
[18:14:53] <t12> it seems like it wouldnt be that reliable but it works really well
[18:14:56] <t12> cells survive and such
[18:15:07] <t12> ejection cone is very well defined
[18:16:23] <ChuangTzu> is that your brain?
[18:16:33] <t12> ya
[18:16:39] <t12> brains look gross
[18:17:16] <ChuangTzu> did it have a problem or was that just for fun?
[18:17:21] <t12> for fun
[19:30:28] <maZer`-> hello
[19:30:36] <maZer`-> can i invert signals
[19:30:49] <maZer`-> net test123 <= signal123 not
[19:42:05] <pcw_home> there's a "not" component
[19:45:40] <pcw_home> loadrt not count=1
[19:45:42] <pcw_home> addf not.0 servo thread
[19:45:43] <pcw_home> net truefoo not.0.in foo
[19:45:45] <pcw_home> net notfoo not.0.out
[19:48:07] <maZer`-> before foo <=
[19:48:08] <maZer`-> correct
[19:50:04] <maZer`-> is there a reason why i cant use the motion pins ? :(
[19:53:33] <maZer`-> ahh i see is already linked
[19:59:25] <pcw_home> you can coneect a signal to as may pins as you like (as long as there is only one driving pin and the pins have the same type)
[19:59:38] <pcw_home> s/may/many/
[20:01:48] <maZer`-> hm
[20:01:48] <maZer`-> ok
[20:02:09] <maZer`-> also my problem is motion.spindle-on is connected to spindle-on
[20:04:09] <maZer`-> i just wanted to use the motion.spindle-on signal inverted :I(
[20:16:18] <XXCoder> got question
[20:16:33] <XXCoder> what dimeter is this http://www.boschtools.com/Products/Tools/Pages/BoschProductDetail.aspx?pid=16176
[20:17:04] <XXCoder> 3 inches? 1000? :P
[20:19:26] <pcw_home> "before foo <="
[20:19:28] <pcw_home> the => and <= are just there for looks (and ignored by the parser)
[20:21:11] <maZer`-> ok
[20:21:34] <maZer`-> i dont know how i can get it running well...
[20:21:44] <maZer`-> i will check spindle running, programm idle
[20:21:57] <maZer`-> if not open tool clamp
[20:28:01] <XXCoder> found site said its 3.5" dia okay lol
[20:42:23] <XXCoder> need bit of advice
[20:42:34] <XXCoder> https://dl.dropboxusercontent.com/u/53432577/cncidea7.png
[20:42:52] <XXCoder> seems to be bit too low or what? that router part
[20:48:47] <malcom2O73> Seems to be on a bit of a lever arm, but as long as the rods are strong enough shouldn't matter much
[20:49:36] <XXCoder> I think I do need to adjust it so its max extension would make router touch surface (ignoring collet and such)
[20:52:15] <XXCoder> maybe seperate bearing blocks too
[20:52:35] <XXCoder> more stronger but less travel. I doubt I will need more than 6 inches travel
[20:54:03] <XXCoder> or maybe better if max lowest collet would JUST hit surface
[20:54:04] <XXCoder> better?
[20:56:14] <XXCoder> malcom2O73: see the picture? the gap between surface and gantry bottom part of box is bit over 4 inches
[20:56:20] <XXCoder> or 105mm
[21:01:15] <os1r1s> Anyone know off hand what that Chnese g540 is called?
[21:04:14] <XXCoder> nope
[21:04:20] <XXCoder> https://dl.dropboxusercontent.com/u/53432577/cncideasizes.png
[21:04:24] <XXCoder> this one has sizes
[21:04:27] <XXCoder> all mm
[22:18:11] <pcw_home> os1r1s: mx3660
[22:19:28] <os1r1s> pcw_home: Thank you !