Nicklas,
my Graziano lathe has 5 electric clutches für 4 gears and reverse.
Without activating these the spindle will only be turned slightly by the
heavy oil in the gear case. Such a feature makes the machine ideal for
electrical control in order to face off and form cut large flat cast
iron grinding slabs, starting out from 400 mm radius and continously
cutting with accelerating speeds down to the very center without pausing
fo gear change.
Peter
Am 12.04.2020 um 17:06 schrieb N:
Try to run spindle motor om a machine today, this is my first CNC machine so I
am a little bit uncertain. Motor run but spindle does not, there of course is a
possibility gear box i broken but in such case I would have expected noise,
there is some torque on spindle make it move slowly but not normal.
There some kind of electrical connection. Anybody have any idea if it is common
to have some kind of clutch for spindle?
Regards Nicklas Karlsson
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