Quote: (Originally Posted by
Skipbreather)
Remember, you’re thinking in feet per minute/ meters per minute past the tool bit, not just RPM. The diameter of your work piece directly affects this speed.
You are absolutely right when it comes to production work but it can more or less be forgotten when diameters are small and rotational speed is very low. I've created CNC programs that scared the sh*t out of me when trying for the first time. (Hard Metal milling into Aluminum at true production speeds)
When I do stuff manually I'm at less of 10% of production speeds to I can't be bothered to calculate
.