2011/3/4 Chris Radek <ch...@timeguy.com>: > On Thu, Mar 03, 2011 at 08:34:35PM -0600, Jon Elson wrote: > >> Specifically, when using cutter radius compensation and straight lines, >> you can only make convex shapes on the outside of a part. >> So, if you have G42 in force (tool on right), then you can only make >> left turns. > > This has not been true in EMC since 2.3 was released in early 2009. > You can program concave corners in EMC. >
I cannot completely agree to that - just like author of this thread I had the same error message about gouging and concave corners on my waterjet machine in the autumn last year. I had 2.4.3 version, if I recall correctly (it was one of the latest at that moment). The conclusion of the reason, why did I get the error, was that the inside corner was created by straight lines, which were smaller that cutter radius (~0,5mm). So receiving this error message means that G-code has to be corrected. One of possible options - offset the cutter path so that required part can be created without G41/G42 compensations. More advanced fix would be finding out, why the code consists of such a small linear lines and checking, if that reason can be avoided - bad choice of CAM application, bad drawing or maybe something else. Viesturs ------------------------------------------------------------------------------ What You Don't Know About Data Connectivity CAN Hurt You This paper provides an overview of data connectivity, details its effect on application quality, and explores various alternative solutions. http://p.sf.net/sfu/progress-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
