Chris, Thank you for the detailed response.
>If you must do your entry move inside what will eventually be the >hole, I recommend using tangent arc entry like this: > >% >G40 G49 G54 G80 G90 >G10 L1 P1 R.25 >T1 M6 >G43 H1 >M3 S750 >G0 X0 Y-0.1 Z0 >G1 Z-.1 F10 >G41 G3 J0.3 X0 Y.5 D1 >G3 J-.5 >G40 G1 X0 Y0 >M5 >% > >Not only will you get your full circle cut, you'll also get much >better finish at the Y+ edge of your hole if you enter tangentially. >Ideally you'd exit with a tangent arc too, so you don't ever rub >against the edge of the hole. I'm surprised that LCNC will allow crc to be turned on during a G2/G3 entry move. Only G1/G0 are allowed as entry moves on Fanuc-type controls. >You might also want to see the hole milling subroutine in >useful-subroutines.ngc, which does CRC entry using a line above the >workpiece (which is probably the most standard practice) and avoids >making any concave corners at all. This makes it awfully foolproof. I should have been more clear - this 1" hole is hypothetical. I'm more interested in the bug than in making a hole. I doubt it's worth an extra check for this particular corner case, but the error message is misleading in this particular case. If you don't mind, I'll submit this as a (lowest priority) bug on the SF tracker, just so that I can remember it exists should I ever have the time to fix it. Rogge ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
