doubleboost
Well-Known Member
- Joined
- Feb 23, 2008
- Messages
- 122
- Reaction score
- 6
I was buisy cutting a coarse thread on my bantam lathe .
It was only 20 mill long so i was cutting it by hand (gear box in neutral turning the chuck manually)
The job went very well the nut i was using for a pattern screwed in nice and tight .
The last thing to do was to face the job off.
I turned the tool post around set up the tool put the lathe in to gear then switched the power on .
The lead screw was still engaged. with the spindle running at 800 RPM the result was instantanius the tool crashed in to the chuck i hit the stop button and stood well back , the noise was sickening thank fully the damage was not to bad .
The job is scrap the tool finished and the chuck jaws maked (under pants well soiled)
It takes only a split second laps in concentration to turn a pleasure in to a disaster.
Regards
John
It was only 20 mill long so i was cutting it by hand (gear box in neutral turning the chuck manually)
The job went very well the nut i was using for a pattern screwed in nice and tight .
The last thing to do was to face the job off.
I turned the tool post around set up the tool put the lathe in to gear then switched the power on .
The lead screw was still engaged. with the spindle running at 800 RPM the result was instantanius the tool crashed in to the chuck i hit the stop button and stood well back , the noise was sickening thank fully the damage was not to bad .
The job is scrap the tool finished and the chuck jaws maked (under pants well soiled)
It takes only a split second laps in concentration to turn a pleasure in to a disaster.
Regards
John