Re: [CAD_CAM_EDM_DRO] Pneumatics on my spindle question

washcomp wrote:

>I'm working on a Bridgeport 2J converting it from NC to CNC.
>It has a pneumatic cylinder on the brake and another on what I think
>is the spindle lock. The wiring goes to 4 relays and there are some
>spindle control toggle switches on the Z axis motor mount. Does
>anyone know what his is for (before I hack into it)? The nearest I
>can come up with is maybe its a fast tool change, but I don't see how
>the drawbar is disengaged.
>
>

I think part of this is the air motor that changes spindle speed. Some
machines also had
the "spindle wizard" that was essentially a turret micrometer depth stop
and an air cylinder
to push the tool into the work. That was for 2-axis CNC machines.

Jon