On Thu, Apr 19, 2012 at 09:18:52PM +0300, Viesturs L??cis wrote: > > How hard would it be to add that? It would require 3 coordinates for > each of start, end and center point.
The guts of linuxcnc already support this kind of motion and have for some time. The problem is representing them in gcode. I do not agree that 3 coordinates is enough to identify a 3d arc uniquely. Consider the points start:-1,0,0 center:0,0,0 end:1,0,0. You can draw many arcs with that specification. Also it is not true that you can't get nonplanar arcs in linuxcnc. If you rotate around the Z axis (G10 R) and do a G18 or G19 arc, you'll see that it's not in any plane. Of course you can only specify some arcs this way (but enough to let any gcode program keep working when rotated.) Chris ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
