Problem with elyptical geometry

DanFecteau · Post by **DanFecteau** » Thu, Apr 05 2007, 6:55AM

We do a lot of archway doors, one of our new standard is elyptical arch way, it's fast and easy to draw but I have problems when I machine the parts, when the cutter get in the \"curv\" its's do little \"jumps\" ??? Is it the machine, mastercam, autocad ????

Pete Riddle · Post by **Pete Riddle** » Thu, Apr 05 2007, 7:37AM

Dan,

Most of your CAD softwares output ellipses as splines (or small straight line segments. Your machine is most likely reacting to the series of small straight lines. I recommend you convert your ellipse (spline) segments to arcs. That will solve your problem. I have been using Mastercam to accomplish this here.

DanFecteau · Post by **DanFecteau** » Thu, Apr 05 2007, 7:45AM

When I do that, modifi, cnv to arcs I get \"no spline were converted\" ? What am I doing wrong ??

DanFecteau · Post by **DanFecteau** » Thu, Apr 05 2007, 8:29AM

Ok I got it with Break, splines to arcs, I'm gonna machine it now.....

Thermwood / eCabinet Systems

Problem with elyptical geometry

Problem with elyptical geometry

not working ?

break, splines to arcs