Chris Radek wrote: > 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. > Well, shows how out of date I am! But, doesn't that cause a gouge? I got used to using arcs on inside corners to avoid the gouge and cutter load increasing on them. Or, does the trajectory compensate to avoid the gouge? If so, it seems like it would HAVE to insert an arc segment between the two straight lines.
I rarely use the G41, G42 offsets, I have my little C programs that code the paths I need without using tool radius offsets, so I am rusty. Jon ------------------------------------------------------------------------------ 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
