Yes. I make plastic gears for the Logan gearbox. When I was first testing them I engaged the power crossfeed. It was up against the stop and I heard a snap. I don't wanna think about what it woulda sounded like if they were all steel gears! I also have an older Logan so it doesn't have the slip fit clutch and don't know what would have happened if I did. In the end I had one gear crack in half and the next day when I had more time I replaced it (without removing the gearbox) and was back in business. Unfortunately the next test didn't break the same gear, it broke a different plastic gear that's a pain the butt to replace. Morrow of the story, don't crash the lathe. Mine were intentional tho to test the strength of the gears. No more intentional stuff here now!