arcs to lines

[rmason]

I need to machine an ellipse .758" x .365" using a .125 e/mill on a milltronics cent 6. I can create the ellipse in bobcad 19 but I get crazy arcs when using cutter comp on the machine. i think it would work fine if I could change all arcs to tiny lines - like vectorizing text.
My plan is to load the dxf of the ellipse in the control using the cad feature on the conversational side and use mill start etc. Any help is appreciated. Russ

[Claude Boudreau]

I need to machine an ellipse .758" x .365" using a .125 e/mill on a milltronics cent 6. I can create the ellipse in bobcad 19 but I get crazy arcs when using cutter comp on the machine. i think it would work fine if I could change all arcs to tiny lines - like vectorizing text.
My plan is to load the dxf of the ellipse in the control using the cad feature on the conversational side and use mill start etc. Any help is appreciated. Russ

Not sure if this is your problem but if it is, a search on crop circles should bring some solutions.

[rmason]

Thanks for that -at first I thought you were just being sarcastic. But that did get my program in lines only. unfortunately it still isn't smooth. I fooled with accuracy in the interpolate dialog box both larger and smaller (.05-.0005) didn't help. I think it may be in the post processor? not sure how to fool with that. any ideas? Thanks Russ

[Claude Boudreau]

Thanks for that -at first I thought you were just being sarcastic. But that did get my program in lines only. unfortunately it still isn't smooth. I fooled with accuracy in the interpolate dialog box both larger and smaller (.05-.0005) didn't help. I think it may be in the post processor? not sure how to fool with that. any ideas? Thanks Russ

If you are using Mach 3 controller, there is a ( crop circles arc fix ) on that post

BobCAD - leaving tabs in a cutout part

Might want to read this first:
http://bobcadsupport.com/techfaq/ind...=56&artlang=en