Hi Gene, Your problem might be related to the fact that the interpreter reads ahead of the "executor." So, in theory, you can run through the loop multiple times while nothing has actually been executed. (In your case, something HAS clearly been executed -- otherwise you couldn't error out.)
I haven't figured out the actual details of what might be happening, though. Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 On Sat, Oct 14, 2017 at 4:02 PM, Gene Heskett <[email protected]> wrote: > Greetings all; > > I am now thinking I am fighting with a bug in a WHILE/ENDWHILE loop. > > 1. None of my stuff I wrote to do peck tapping will run. > > gcode file: > > % > ( tap3-8x16tpi-hole.ngc ) > ( measure in inch's ) > G20 > #<_z_depth> = -1.0000000 > #<_tp_inch> = 16 > #<_down_per_rev> = [1.00000 / #<_tp_inch>] > (big tap, puny 1hp oem motor on G0704, so advance 1/4 turn per peck) > #<_z_dec> = [#<_down_per_rev> / 4.0000] > > G1 f10 x0 y0 Z0 ( put it at touched off just above hole to 0.0000 > position ) > #<_z_tmp> = 0.00000000 ( start z_tmp at that Z location) > G0 z0.1000000 ( and put it above there to start the loop ) > (debug,z-tmp=#<_z_tmp>) > (debug,down-per-rev=#<_down_per_rev>) > (debug,z_dec=#<_z_dec>) > > o100 WHILE [#<_z_tmp> gt #<_z_depth>] > > (debug,19 z-tmp=#<_z_tmp>) (prints once only, value is correct ) > > #<_z_tmp> = [#<_z_tmp> - #<_z_dec>] > S500 M3 ( start motor in low gear, put here to test a startup from zero > speed, no help ) > G33.1 Z#<_z_tmp> k#<_down_per_rev> (gets joint 2 following error here) > > G4 P4 (4 second pause to clean chips out of & buttercut the tap ) > > o100 ENDWHILE > > M5 > > M2 > % > > Now here is the puzzle, z moves to about -0.018" before it errors, AND > an immediate check of #<_z_tmp> says its exactly -1.000000! Nothing in > this code loop is being executed, yet #<_z_tmp> gets the final value > from the loops execution. Thats the only way it could be decremented > from 0.000000 to -1.000000, that I can see. > > Am I blind, or have I found a bug? > > 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> > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
