[TheForge] Jet tailstock disassembly?

[Paul Sperbeck]

If the broken set screw is hardened, it will be a problem drilling it
out. I don't know what size it is but perhaps you can drill around it
with a small hole saw, then clean up the hole and tap it for a larger
size that you can then drill out for a more appropriate set screw.

I have used pipe taps in holes like this and then just turned a solid
plug to pipe OD then threaded it, when these are screwed in the tapered
thread prevents it from going to deep and the addition of a little
loctite will keep it there for longer than the lathe will last. You can
also drill it for the smaller set screw while it is in the lathe.

If the set screw is used to  guide the ram as I thought you described
it, consider using a half dog set screw as a replacement.

see:
http://www.fastenal.com/web/products/details/26085?searchMode=productSearch&rfqXref=&rfqKeyword=&rfqId=&rfqLineId=&zipcode=&filterByStore=

paul

On 07/04/2013 07:34 AM, Andrew Vida wrote:
> As I suspected, the set screw was broken.  Probably a bad unit, failed
> when assembler over-tightened, and there we are.  I've not removed it
> yet.  Need to figure how to fix it to the mill... or just try to drill
> it by hand, though that option is not my first choice.
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