On Mon, 16 Aug 2010 06:41:11 -0500, you wrote:
>Do you have an example of using G33 to cut a tapered thread you can share? Hi John - here's one for a taper plug. Stock was 40mm diameter stainless, taper is 20 degrees and pitch is 2mm. (As per all engineering standards for measuring the pitch along the Z, not the taper!) You'll note that the pitch would have to be fudged to 2.13mm for EMC to cut the same part correctly :( Mach or a Fanuc would define line 65 as N65 G32 X42.023 Z-21.866 F2.0 (Note F for feed, not K) Although the originals were not done with EMC, this should work. It's the threading part only, the original was one piece of code, with a rough turning then boring cycle to hollow the plug out some before threading. ;40taper 8-16-2010 N15 G18 G21 G64 G80 G90 G90.1 M49 G40 G49 N20 G95 F2.13 M5 N25 G0 X25. Z20. ;CHANGE TO TOOL # 01 ;OD_UN_NW N40 T01 M6 N45 G0 X43.28 Z6.292 F2.13 G97S700 M3 M8 N50 G4 P3 ; THREAD: OUTER N60 G0 X22.712 Z4.663 N65 G33 X42.023 Z-21.866 K2.13 N70 G0 X61.232 Z-21.866 N75 G0 X43.28 Z6.292 N80 G0 X22.356 Z4.635 N85 G33 X41.667 Z-21.894 K2.13 N90 G0 X61.209 Z-21.894 N95 G0 X43.28 Z6.292 N100 G0 X22.059 Z4.612 N105 G33 X41.371 Z-21.917 K2.13 N110 G0 X61.189 Z-21.917 N115 G0 X43.28 Z6.292 N120 G0 X21.805 Z4.591 N125 G33 X41.117 Z-21.937 K2.13 N130 G0 X61.172 Z-21.937 N135 G0 X43.28 Z6.292 N140 G0 X21.583 Z4.574 N145 G33 X40.894 Z-21.955 K2.13 N150 G0 X61.158 Z-21.955 N155 G0 X43.28 Z6.292 N160 G0 X21.385 Z4.558 N165 G33 X40.697 Z-21.971 K2.13 N170 G0 X61.145 Z-21.971 N175 G0 X43.28 Z6.292 N180 G0 X21.207 Z4.544 N185 G33 X40.519 Z-21.985 K2.13 N190 G0 X61.133 Z-21.985 N195 G0 X43.28 Z6.292 N200 G0 X21.046 Z4.531 N205 G33 X40.357 Z-21.998 K2.13 N210 G0 X61.122 Z-21.998 N215 G0 X43.28 Z6.292 N220 G0 X20.897 Z4.52 N225 G33 X40.209 Z-22.009 K2.13 N230 G0 X61.112 Z-22.009 N235 G0 X43.28 Z6.292 N240 G0 X20.76 Z4.509 N245 G33 X40.072 Z-22.02 K2.13 N250 G0 X61.103 Z-22.02 N255 G0 X43.28 Z6.292 N260 G0 X20.76 Z4.509 N265 G33 X40.072 Z-22.02 K2.13 N270 G0 X61.103 Z-22.02 N275 G0 X61.103 Z6.292 N280 G0 X25. Z20. M5 M9 N285 M30 Steve Blackmore -- ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
