On Saturday 15 August 2015 11:05:23 Gene Heskett wrote: > For the last couple weeks, running the 2.8.0-pre# my tool, a .250" > diameter mill as shown in the tool table, has become a single, weakly > flickering pixel that is very hard to follow in the backplot, and > extremely easy to lose track of. > > The command is M6 T1 to switch to it in my code. > > The tool.tbl: > gene@GO704:~/linuxcnc/configs/GO704fast$ cat tool.tbl > T1 P1 X0 Y0 Z0 D0.25 ;1/4 inch mill > T2 P2 X0 Y0 Z0 D0.126 ;1/8 drill > T3 P3 X0 Y0 Z0 D0.135 ;5/32 drill > T4 P4 X0 Y0 Z0 D0.038 > T5 P5 X0 Y0 Z0 D0.041 > T6 P6 X0 Y0 Z0 D0.052 ;0.052 pcb component lead clearance drill > T7 P7 X0 Y0 Z0 D0.0514 ;placeholder pcb bigger component clearance > drill T8 P8 X0 Y0 Z0 D0.001 ;interconnect pattern etch > T9 P9 X0 Y0 Z0 D0.0625 ;reference hole drill > T10 P10 X0 Y0 Z0 D0.04 ;a #58 drill > T11 P11 X0 Y0 Z0 D0.0625 ;a .0625 2 fl end mill > T12 P12 X0 Y0 Z0 D0.0312 ;added 20130917 > T13 P13 X0 Y0 Z0 D0.0015 ;added 20130918 > T99 P99 X-1.6505 Y0.6823 Z0 D0.0001 ;test of camview-emc, added > 20131128 > > Am I doing something wrong? Or are these measurements now being > interpreted as mm's? Just for S&G, I'll edit tool 1 to be a 6.35mm > (.250") tool when I get back to that machine.
FWIW, G20 mode (inches) is in effect, but a 6.35 for tool D in tool.tbl makes it normally visible as a 1/4" mill. So the tool.tbl entries are being treated as milimeters. This doesn't seem right, but can be worked around if that what it is for 2.8. > Side comment, FWIW: Much of what I use lcnc for in woodworking is 2D, > and I find that the 3D display, like when doing multiple passes to get > to full depth, of a wood joint where the tool path is just being > duplicated per depth pass, is needless dirtying of the backplot > display, so I would suggest disabling this feature when an individual > axis is chosen for the displayed backtrace. I think its ok for the > default angled view, and may be helpful/informative there in helping > to visualize things. Using the first Z view, having the displayed > trace shrink as the tool descends, is not helpful. In fact it has > made me check my code for unwanted, typu driven scaling errors until I > realized I was looking at a 3D view from straight up, apparently from > the homed, fixed position. Z home for me is near the top of the post > so the scaling effect isn't huge, just enough to muck up the view. > > Perhaps this 3D mode could be made switchable in the view menu? > > Hypothetical question, throwing it out to see if it sticks to the > wall: > > If I was to mount a dovetail bit, how would that be entered into the > tool.tbl? An inverted cone, with a minimum diameter shank sticking > out of the truncated tip might do, but to be precise, would need to be > able to specify the angle of the dovetail, usually 7 degrees but I > have seen up to 14 degrees. That large invites sloppy work though, > and does nothing to enhance the strength of the joint when wood is the > medium. > > 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) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
