Re: Power drill torque vs spindle for CNC drilling?
Mains powered hand tools in general use a Universal (series field) motors, these are very high torque motors, but essentially operate in a run away condition.
This is the reason they are geared to obtain the lower RPM's.
Without some added feature, they are hard to operate at a fixed rpm.
There is one that was developed by a member here and it is marketed generally for router spindles, and it goes under the name of SuperPID unit.
Routers are direct drive, so no reduction like the hand drill version, but use the same motor.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.