Greetings; Trying to cut a short trench in the "tap hat" to put that m4 (7mm diameter) screw head into.
Machine is touched off just out of end of workpiece. Code, with G3 line copy/pasted from arcgenm18.py. =================================================== g20g7 #<_pocket_width> = 0.27900 (about 7mm's) #<_tool_dia> = 0.24900 (let dull tool flex .0005") ( assumes mill is 1/4" thru, so circle diameter is .0300") #<_circle_dia> = [#<_pocket_width> - #<_tool_dia>] #<_wobble> = [#<_circle_dia> / .5000000] ( .015" Y trades sign at circle) (debug,wobble=#<_wobble>) ( x stop, draw semi circle to other side of wobble ) #<_x_minus> = -0.3000000 (depth of circle center from ends of arc) #<_x_safe> = 0.1500000 (out of workpiece) #<_y_center> = 0.0000000 (for reference) #<_z_top> = 0.28000000 (top surface of jig) #<_z_final> = -0.0780000 (depth into jig to cut 2mm into brass) #<_z_dec> = [0.3580000 /20] (establish cut decrement) (debug, zdec=#<_z_dec>) s600 #<_z_tmp> = #<_z_top> m6t10 (tool image small enough I can see past it in Z view) m3 o100 WHILE [#<_z_tmp> gt #<_z_final>] (do depth loop) #<_z_tmp> = [#<_z_tmp> - #<_z_dec>] (decr depth till done) G90 (absolute distance mode for depth) (G1 F10 z#<_z_tmp>) G0 z0.3 (cut air) G1 F5 x#<_x_safe> ( put x out of workpiece) G1 F10 y#<_wobble> (now put Y at plus offset location) G1 F5 x#<_x_minus> (drive x to start of 180 degree arc) G91 (incremental distances for arc) G91.1 (incremental distances for IJK in arcs, normal IOW) ( draw a semi-circle in climb mode, ccw from 90 to 270 degrees) ( this runs y .12", .06 up to .06 down ) G3 X-0.0000 Y-0.0600 I-0.0000 J-0.0600 G90 (back to absolute distances ) G1 F5 y-#<_wobble> (should already be here) (should be back to -wobble) G1 F5 x#<_x_safe> ( cut other edge of trench back out of workpiece) o100 ENDWHILE m5 m2 % ================================================== And nothing I adjust can keep me from huge G3 errors, or zero radius errors. This is, or sure looks like, errors like I was getting when I attempted to carve the pillows. There I asked for help but got crickets, so I finally wound up digging the trenchs with a SIN[#<_deg>] and a COS[#<_deg>] for the starting XZ position of a cut nearly 4" long on the Y axis. Worked a treat but took a while since I was only incrementing #<_deg> by 1 degree at a time. What error(s) are there in the above code? -- 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-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
