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matt.petrie
534 Views, 5 Replies

Mach3 doing something different from f360 simulation on ellipse

Hi, I've been trying to make a ellipse shape bread board. I've drawn it in f360 - simple sketch, 2 ellipses. extrude the outside one, the inside one being for the groove. Then in manufacture I do a project for the groove - this is fine. For the outside I just do a 2d contour for a 10mm straight bit. This looks fine and runs fine on the simulation. However when I open the file in mach3 i can see a couple of circles in the board so it cuts the outline and also cuts in the 2semi circles. Unfortunately I didn't see this until i'd actually cut it out. 

Is there a bug that anyone is aware of? Should I be aiming this question on a mach3 forum? I have tried in manufacture to delete the contour and redo - same issue. I've then done a drawing from scratch and i'm still getting the same issue. It's not the lead in - this is outside the contour and in a different position. The 2 holes are just below centre on the ellipse and symmetrical in position - any help much appreciated