powermill and slot cutting with woodruff tool

[krustykrab]

Hi,

anyone know how to program a toolpath in Powermill to cnc cut an undercut slot with a woodruff cutter.

I can't seem to figure it out, it just z-planes down the outer wall and ignores the undercut.

thanks for any help

[Steve Mack]

You need to use point and line projection methods to program an undercut in PowerMill.

[krustykrab]

Thanks Steve,

Is that something that can still be done with a cutter like woodruff or dovetail using a 3 axis cnc? Many of the fixtures that I cut require undercuts, and it would be great if I could cut those undercuts while the job is still setup without doing multiple sine plate setups.