#emc-devel | Logs for 2007-08-08

[11:28:34] <cradek_> cradek_ is now known as cradek
[12:07:56] <skunkworks]> skunkworks] is now known as skunkworks_
[12:15:57] <skunkworks_> jepler: http://www.electronicsam.com/images/engraver/emc2axis.JPG
[12:20:10] <cradek> whee!
[12:20:52] <skunkworks_> Cool huh. cut it at whatever the spash screen is at - I think 60ipm
[12:21:43] <skunkworks_> I am cheating and running the parker drives directly from the printer port.. I should tell jymm that ;)
[12:29:19] <skunkworks_> I still have not tried the motors in series.
[12:29:57] <jepler> skunkworks_: looks mighty fine
[12:30:05] <jepler> skunkworks_: if you find another one of those machines, pick it up for me will ya?
[12:30:15] <skunkworks_> :) I lucked out.
[13:03:35] <cradek> skunkworks_: the jaggies on the M are just from downsampling the image, right?
[14:50:25] <skunkworks]> cradek: yes - that is the picture res. the machine has .00025 resolution.
[14:52:15] <cradek> have you cut the spiral to check backlash yet?
[14:52:58] <skunkworks]> no - did not think of it. It should be decent as the machine has spring loaded nuts.
[14:53:26] <cradek> you're about tired of this machine and ready to unload it now, right?
[14:53:52] <skunkworks]> heh
[14:54:10] <jepler> it probably takes up room that could be better used for other purposes
[14:54:25] <skunkworks]> nice - team up on me.
[14:55:03] <skunkworks]> :)
[14:57:03] <skunkworks]> they actually geared up the z axis - it is 2000 per inch vs 4000 on my other axis
[14:57:29] <skunkworks]> .0005 vs .00025
[14:57:52] <skunkworks]> (microstepping 1000 per rev)
[14:58:42] <cradek> so a full step is .002? that seems huge
[14:59:05] <cradek> err .0025
[14:59:32] <skunkworks]> yes - the 2 main axis's have 4 threads per inch direct drive.
[14:59:35] <skunkworks]> x/y
[14:59:46] <cradek> no wonder it can move so fast
[14:59:48] <skunkworks]> actually 2 start lead
[15:00:29] <skunkworks]> z has the same thread but is pullied 2:1.
[15:01:06] <skunkworks]> acutally 200 steps per rev would give .00125
[15:01:38] <skunkworks]> z would be .0025 - and that would be easy to change I think
[15:02:17] <cradek> that seems really coarse for Z. I think I cut PCBs .0035 deep
[15:02:33] <cradek> for engraving other stuff (signage) I bet it's fine though
[15:03:23] <skunkworks]> right - depends on how much you trust microstepping.. According to marris - it is very acurite.
[15:04:39] <skunkworks]> I could hook up a nice indicator and see I suppose
[15:09:57] <skunkworks]> I am going to have to make a video I think :)
[15:10:38] <cradek> that would be nice
[18:06:51] <skunkworks]> skunkworks] is now known as skunkworks_