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PCB drilling question

In commercial CNC setups, is the drill motor powered during the entire
drilling operation (except tool changes) or is it cycled on/off at each
hole location?
 
L

Larry Brasfield

Jan 1, 1970
0
In commercial CNC setups, is the drill motor powered during the entire
drilling operation (except tool changes) or is it cycled on/off at each
hole location?


When I saw that operation at a local board house, the
drill spent as about much time in the stack as out. There
was no pause to let the motor spin down and back up,
and I doubt any shop would do it that way.
 
I doubt any shop would do it that way

Me too. I foolishly went and bought a SSR with zero-crossing and
snubber circuitry for motor control in my CNC setup then realized that
even though X and Y speeds are slow at 20 IPM, it still probably didn't
justify cycling the power on/off at hole locations.
 
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