View Full Version : Pinewood derby car


andedwa
02-24-2008, 06:15 PM
I want to cut a pinewood derby car on a CNC mill. What feeds/speeds would you recommend for a .25 ball nose endmill?

Glidergider
02-26-2008, 09:01 PM
It totally depends on the quality of your mill. I'm curious what CAM software are you using?

andedwa
02-29-2008, 07:56 AM
Haas VF2, 15000RPM spindle. GibbsCam 8.7.7

Glidergider
03-01-2008, 08:50 AM
Nice machine. Do you cut wood in it very often? I'd say you could cut as fast as you want. 100 in/min should be easy. 1/4 inch bits can cut pretty fast, and the wood chips will fly.

On my home built router I cut at 40 in/min. Here are pictures of my results. http://flickr.com/photos/davidcousins/sets/72157603509563559/