Drill attachment in place of chuck?
On Mon, 04 May 2015 14:41:00 -0400, Ed Huntress
wrote:
On Mon, 4 May 2015 17:56:49 +0000 (UTC), John Doe
wrote:
TWIMC...
Assuming the drill needs to be held against the bicycle's bottom bracket
anyway, a non-locking connection turns out to be easy. Lowe's sells 1/2
inch 20 TPI nuts in their specialty drawers (2 for $1.67). That nut fits
on the DeWalt drill spindle. The bicycle bottom bracket tapered spindle
is about 1/2 inch square. So a 1/2 inch drive socket that fits the drill
spindle nut neatly completes the connection.
I might carefully grind a little bit off of the bottom bracket square
tapered spindle and/or maybe the socket drive area so that the 1/2 inch
drive socket slides on a bit further, if I can confidently do that.
Don't want to make it off-center though.
Aha. It sounds like you're trying to lap-in the bearing cones on the
bottom bracket, right?
That should be "cones and cups." I have done this with bicycle wheel
bearings, but that was in my engine lathe.
--
Ed Huntress
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