I'm currently trying to troubleshoot some issues related to the thread title. I'm cutting some slots that are 20% larger than the endmill diameter (.150 vs .125) and twice the diameter in depth (.250) using adaptive clearing in a single pass. 2 flute, 29k RPM (Kress spindle), 110ipm 15% engagement
Theoretically this should be very fast, if not the fastest and best way for tool life, however, I believe I'm being limited severely by acceleration. What Fusion360 would like to be a 110ipm, 3 minute operation is turning into a 9 minute operation with feeds averaging much slower. The gcode feed is absolutely F110, but the display shows 10-30 during the operation. Here is an image of the toolpath produced by 2D adaptive:
http://i.imgur.com/uNqEQfF.jpg
Accel is the issue here, and there are obvious solutions. Ray might suggest upgrading to some manly servos
, but I want to see what I can squeeze out of these Tormach steppers. I could jailbreak and increase accel tolerances since there's no weight on my table, but I'd like to avoid that too. I'm concerned that the fact that I can't seem to get Fusion360 to produce an adaptive path that uses actual arcs rather than short straight paths is limiting my acceleration more than it needs to be. I've been toying with super high tolerances in the smoothing setting with no joy. I want some damn smooth arcs, dammit! Anyone know how to achieve this in 360?