Re: [CAD_CAM_EDM_DRO] RE: Cam track help!

Depends on how much resolution for the curve you want, but at the sacrifice
of many more starts and stops if you do not have constant velocity
contouring. The reason it behaves oddly at the peaks is because you are
doing a tiny linear move coupled with a 1 degree angular move and the
feedrate does not know what to do. For the code I supplied Mark William's,
I calculate a specific feedrate for each step increment so that it cuts
smoothly.

Would you like a copy of my spreadsheet?

Daniel J. Statman, Statman Designs
www.statmandesigns.com

----- Original Message -----
From: "John Guenther" <j.guenther@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, August 21, 2002 6:32 PM
Subject: RE: [CAD_CAM_EDM_DRO] RE: Cam track help!


> Dan,
>
> Ok, thanks that helps. Would there be anything gained by recalculating it
> at 0.5 degree or smaller increments instead of the 1 degree increments? I
> suppose I could do that and run it on the mill just to see how it acts.
> When I ran the original gcode I produced it acted a little strange at the
> peaks but seemed fine other wise.
>
> john
>