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How was this chuck damaged? A forensic investigation.

Demoman357

Plastic
Joined
May 26, 2019
I inherited a Goodway 16x60 engine lathe from my father. My sibling used the lathe just before my father died. My father said that he thought that my sibling had damaged something badly when he used it. My sibling will not confess to any such sin, but...
This are pictures of a Bison 3245 scroll chuck. The chuck was a complete rust ball so I disassembled it to clean it. Then I discovered the evidence of bad things. My question is really two-part: what could have happened to cause this damage and, more importantly, what damage should I be looking for on the lathe itself?

IMG_3867.jpgIMG_3869.jpg
 
As suggested in a parallel thread, it looks like it was dropped face-down onto a concrete floor. The cracks go the wrong way for the usual crashes.
 








 
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