On Friday 12 June 2020 18:07:09 Gene Heskett wrote: > Greetings all; > > updated the master/wheezy on th G0704 earlier today, then opened up > the nema 34 mount to pass the spindle end of a nema 23 motor. I > carved that square pattern without any hickups not of my doing, but > that adapter plates boltholes for the nema 23 weren't tapped. > > Saddled up and went to TSC where I took them out of 5x.8 x 10's and > 12's cap screws. > > Come back, load up lcnc and home it, put the head in low gear, and > load the code below. > > ( tap5mmx.8mm pitch-hole.ngc ) > ( to tap the holes for screws in the saddle of the Sheldon or for any > 5mm threaded hole) > ( working in metric ) > G21 g7 ( measure in mm's & diameter) > ( setup a path for data from this file to hal, in this case the tpmm > for g33.1's -kval) > #<_tpmm> = .800 > #<_z_depth> = -10.00 > #<_z_dec> = [ #<_z_depth> / 10] ( go a bit farther each time) > (debug, z_dec=#<_z_dec>) > #<_z_tmp> = 0.00000000 > G1 F750 z0.0000 > ( center at touched off x, don't touch Y ) > S200 M3 > o100 WHILE [#<_z_tmp> ge #<_z_depth>] > M68 E0 Q#<_tpmm> > G33.1 Z#<_z_tmp> k#<_tpmm> > #<_z_tmp> = [#<_z_tmp> + #<_z_dec>] > G4 P3 (3 second pause to blow chips & buttercut the tap ) > o100 ENDWHILE > M5 > G0 z75 > M2 > % > > This code ran fine the last time I used it, but now a click on go > starts the spindle, spindle-at-speed is solidly true, but it never > execs the first of 10 loops. Nor does it highlight the problem line. > clues anybody, or a real bug?
I found it, but no clue why its failing. I had replaced the spindle-index "generator" with an ATS-667, sensing a section of a steel screw glued to the side of the spindle below the drawbar cap. Inside the green motor cover. I can see thru the dust cap hole that the screw is still there and the ATS-667 is still in position, but the index according to the hal meter is forever true. So the why it won't run is obviously no index. I can't get a scope probe on it without removing the cover. With my hoist for the BS-1 hanging there, that will not be fun and it will wait for daylight. And fresh coffee. > Cheers, Gene Heskett Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
