> and the piece of metal caught and kicked back.

It seems that most injuries are caused this way from what I have read. As 
far as I know none of the safety systems currently available prevent this 
from happening, although careful attention to detail and maintenance appears 
to help. I wonder if there is a way to prevent this happening too, or 
stopping injury when it does (I imagine it would be rather difficult given 
the rather random nature of it, far harder than sensing fingers near the 
blade) Some more research on the various factors involved in producing the 
kickback would be needed. Maybe some way of detecting too much sudden 
pressure on the blade would be an idea, but I wouldn't be too hopeful, 
certainly without knowing a lot more about it all. 


-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist