Gallery, Projects and General > How do I??

Roll pin in lead screw

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Baldrocker:
Hi all
Hope this ? is in the right place.
Considering putting an variable speed electric drive on the leadscrew of my Myford ML7.
Have all the parts etc . I envisage fastening the pulley to the leadscrew using a roll pin.
Only potential stumbling block is this, would drilling through the ls seriously weaken it?
Thanks guys
BR
PS The pin would be about 1/8".

ozzie46:


  The lead screw in my new lathe has a roll pin in it where it connects to the shaft coming from the change gears. This is factory. There is also a shear pin within an inch of the roll pin, so thats 2 holes.

  Just my 2 cents.

   Ron

Baldrocker:
Ron
Thanks mate, belt and braces, I'll go for a brass shear pin as well.
BR

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