Incomplete Pocketing

[KMoffett]

Attached in a simple example of a problem I ran into on a more complex part. It's a 0.500" wide x 0.125" deep rectangular channel milled in the face of a 0.250" thick Plexiglas plate. The inside and outside corners of the pocket have 0.500 radius fillets. I used a 100% step-over of the 0.250" flat end mill to emphasize the problem. The CAM generates a tool path that clears material completely up to the outer walls of the pocket, and around the fillets on the inner walls. But, it does not clear the material up to the flat faces of the inner walls.

Any ideas?

Ken

 

[fabcadmz]

I changed the stepover to 99% and checked "corner cleanup". That put another path along the inside profile.
I hope this helps.

 

[KMoffett]

Thanks Marlin.
The Corner Cleanup did the trick. Works with all Step Distances. Thought I had tried Corner Cleanup, but was banging around with so many options I must have just missed it.

Ken