- Joined
- Jul 26, 2011
- Messages
- 4,142
I had a devil of a time getting an old right angle milling attachment off our vertical mill at work. It had been well used before I got it,and I didn't notice that there was a deep groove in the lengthways groove in its R8 shank. It went AROUND the shank about 1/2". The little 1/8" drive pin had burrowed its way into the shank,and when I used the attachment,I had a terrible time getting it off the spindle. i can't recall how I ever did get it loose.
Anyhow,I subsequently removed the pesky little drive pin so as to have no more trouble like that. We always tightened the draw bar well,and never had any problem with the R8 collets trying to revolve. Also,we never let any oil get onto the collets,or into the spindle hole.
I'd do it to my mill at home,but haven't been able to unscrew the ring at the bottom of the spindle that covers the set screw and the drive pin under it.
What do you think about this? Did I do wrong? It never caused me any problems doing without the pin. The pin was too small to really do much except bugger up the collet groove any way,on the old attachment.
Anyhow,I subsequently removed the pesky little drive pin so as to have no more trouble like that. We always tightened the draw bar well,and never had any problem with the R8 collets trying to revolve. Also,we never let any oil get onto the collets,or into the spindle hole.
I'd do it to my mill at home,but haven't been able to unscrew the ring at the bottom of the spindle that covers the set screw and the drive pin under it.
What do you think about this? Did I do wrong? It never caused me any problems doing without the pin. The pin was too small to really do much except bugger up the collet groove any way,on the old attachment.
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