Quote Originally Posted by John S View Post
yes limited depth of cut to 1.8mm, was 0.8mm so it flat bottoms larger area's. That adden 3 minutes to it according to VCarve at 1min:46

Simulated it in Mach and got 2 hours 33.
Seem to remember that I 200% over ride the feed rate and was maxing out around 800mm/min.!!