How to Square Up Stock on the Milling Machine

[TomG]

Thanks guys.

November: To calculate proper RPM, multiply the cutting speed of the material by four (approximately 100 surface feet per minute for mild steel and 250 surface feet per minute for aluminum or brass) and divide by the diameter of the work (or the tool in case of a mill).

For example: In the video I'm cutting aluminum with a 1/2" end mill. The proper RPM is 4 X 250 / .500 = 2000. If I was cutting mild steel it would be 4 X 100 / .500 = 800

Tom