- Joined
- 13 Apr 2010
- Posts
- 18,455
- Location
- Sunny Sussex
The tool abuse thread 
You tool!
- Thread starter Maccapacca
- Start date
- Joined
- 13 Apr 2010
- Posts
- 18,455
- Location
- Sunny Sussex
Something about a lift shaft being out of plumb
- Joined
- 13 Apr 2010
- Posts
- 18,455
- Location
- Sunny Sussex
When I was an apprentice my mate left the chuck key in the big lathe and switched it on. This was a 1.5m bed length lathe and the chuck was about 400mm diameter. We were turning big left-handed threads on something or other so the speed was right down and working on the gearing going backwards to normal. Suffice to say it cranked round in comically slow motion and ripped the guard and entire fibreglass back off the machine before mangling the chuck key which must have been nearly 25mm diameter steel
At college I had the lathe set up for automatic feed for slow screw type cutting then for some stupid reason changed it all back to normal high speed cutting without disengaging the self feed, needless to say the tool slammed into a fairly high speed chuck with a bang