Quote Originally Posted by Neale View Post
In both cases, I rely on the software/hardware not to spin up the spindle while I'm changing the tool. I'm sure that that is not acceptable in an industrial setting. Is that what everyone else does?
You'd be surprised just how many industrial machines don't inhibit the spindle, especially routers.

To be fair I think if they did have an inhibit switch very few would use it because they would be forever forgetting to turn it back on again before hitting cycle start and very few would put any checks in the M6 macro to see if the spindle was up to speed before letting the program run again.

One of the things we do is wire our machines so hitting the RESET in the software doesn't drop the drive's power or inhibit them so they stay locked and position doesn't get lost, we then tell people to put the machine into RESET when changing tools this way the OUTPUTS are made safe( well safe as can be without a physical switch).