Sounds like your brake is not holding on the Z axis motor
When I remove power and air from my Bridgeport Interact 412, the spindle drops down.
I have been told I have to place a wooden block under the spindle before I shut it down to prevent this.
I have heard opinions on both sides....that this is normal and it is not normal. I am looking others who have an Interact 412 and their experience with this.
As a sidenote...if I leave the air on the spindle will still drop down when power is removed.
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Sounds like your brake is not holding on the Z axis motor
Any thoughts on how I can verify the operation of the brake or common failures with it?
Thanks
Does anyone have a copy of the parameters and pc parameters ?
For the Interact 412F.