G90.1 is active, but the issue does not involve the circular arc - same complaint occurs if I comment out the G2 line. On 10/28/2015 01:53 AM, Craig Hodne wrote: > > On 10/27/2015 08:31 PM, lloyd wilson wrote: >> (my misunderstanding, I'm sure) >> >> I'm investigating using the built-in cutter compensation, rather than >> calculating absolute coordinates. The first program worked OK, but >> LCNC complains about the following excerpt: >> >> 14: G41 >> 15: G0X0.0000Y24.8610 >> 16: G0Z-17.0000 >> 17: M3 >> 18: G1X7.5850Y21.5360Z-19.0000 >> 19: G1X12.9820Z-19.0000 >> 20: G1X24.4020Y11.5920Z-19.0000 >> 21: G2X25.8100Y8.5000Z-19.0000I21.7100J8.5000 >> >> (nn: numbers added in text editor) >> >> The complaint is 'straight feed in concave corner cannot be reached by >> tool ..... near line 19'. >> With G41 active, the corner defined by lines 19 & 20 is convex - isn't >> it? >> >> Would appreciate help untangling this conundrum >> >> thanks >> >> lloyd > If G90.1 (absolute arc distance) is active, it should work as > programmed. If G91.1 (incremental arc distance) is active, that would > put the center of the arc at location X46.1120 Y 20.0920 and make a very > large arc with a radius of 23.305. The line into the start of the arc > (line 20) would be the inside of an acute intersection with the arc - a > concave corner. And if that were the case, the ending point of the arc > doesn't match the ending coordinates in line 21 - close, but not quite. > If you substitute I-2.6920 J-3.0920 in line 21, does it then work? > > Craig > > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users >
------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
