[EricH]

Originally Posted by DampRobot

Isn't circular interpolation via the G03 command actually quite good on most CNC machines, ie better than just linking a bunch of small line segments? Maybe I'm incorrect, but it seems like it would be more effective, accurate, and efficient for a 3D printer to read a G03 command rather than a huge block of G01 X Ys. Perhaps most 3D print controllers aren't advanced enough to do this kind of interpolation though, and need to run through a bunch of segments instead...

I'm not entirely familiar with Gcode, just what I've been able to decipher off one of 330's machines. No G03 that I can recall even on a curved part.

I think it's more that the 3D printers aren't there yet, and as I said, it may be that there isn't quite the demand for it yet, at least at the low end. (A $10K machine is kind of cheap, mind you... compared to some of the six-figure ones out there! Admittedly different processes, but that's a matter for another day.)