My machine doesn't loose steps at 314.96 ipm (8000mm/min) because in the mach toolpath simulation it draw the same rounded corner.
I don't wan to to cut mdf or other material at 8000, I produce mould for fiberglass, and I need to mill 3D objects with a smooth finish, so the milling machine has to remove thin layers, like 0.1mm, at high speed.
I let my mill to go at 8000 only for make the problem bigger, but it to the same problem at 5000 or 3000, only smaller round.
You can see an example of what I do in this video, it's a test only
www.fxmodel.it/lightspeed.wmvJust for answer to chad (wow nice machine your :-) ) I set the "look ahead" value to 50 lines, but don't matter, because in a square there's only 4 lines of program right?.
Thanks for all to all of you :-)