The machining parameters in these tables have been prepared for and tested on the Tormach PCNC mills in the Elko Engineering Garage. Download the documents to access the built in calculator.
Speed
Feed
Diameter
Number of Flutes
Depth of Cut
Width of Cut
Surface Speed
Chipload
Chipload (Drilling and Plunging)
Surface Speed to Speed
Imperial | S = SFM / ((D / 12) * pi) |
Metric | S = SFM / (D / 1000) * pi) |
Chipload to Feed
Milling | F = S * FPT * N |
Drilling and Plunging | Fp = S* FPR |