I’ve had the GWizard calculator by Bob Warfield over at CNC Cookbook for awhile now, but have never really got it to work for me. I find it non-intuitive and difficult to use, but that is probably just me being dense.

For example, I’m trying to get some decent speeds and feeds for a 1/8” carbide endmill in stainless steel. I’m confused at the 100% Cut Width recommendation that GWizard is giving me for this endmill. I thought the whole idea behind HSM was to be able to take full depth cuts using shallower cut widths?

Wouldn’t a 100% Cut Width recommendation really only be appropriate for slotting?