Re TeccBoxx's issue, I had a similar problem with a step file. I'm using X7. I converted the solid to surfaces and the problem surfaces were moved to a junk level, the model had a bad vertice and an small overlap. I deleted the original solid and the bad geometry leaving only the extracted surfaces. I then reversed the process by creating a solid from the remaining surfaces. I did get multiple solids, the main body I wanted and the 2 bad solids resulting from bad vertice and overlap. I deleted these leaving just the body I wanted.

Hi all, I'm transitioning to Mastercam from NX. Anyone familiar with both : In NX when you zoom the visual quality of the graphics will degrade, (sorry cannot think of a better term), i.e. an arc will appear to become s series of lines. In NX there's a graphics regenerate function that restores the graphics. I'm finding Mastercam suffers the same behavior but I cannot find a regenerate type function. I'm currently using X7 but we're supposed to mirgrate to 2020 shortly, (the lathe guy is using 2020). Any and all help/comments/sarcasm welcomed, (please keep the sarcasm to a min) Regards, Ferd101