[Noisebridge-discuss] Drill Press (keyless chuck)

[John Magolske]

Hi everyone,

I finally got around to looking into the drill press chuck issue. As
far as I can tell, the best option at this point would be to replace
the chuck -- the damage to its internal taper is not easy to fix, and
this is an opportunity to install a keyless chuck (more convenient and
safer, no accidentally leaving a chuck key in when spinning up).

Keyless chucks can be had for around $78 - $300 depending on the
desired precision and quality. I think we can find something
reasonable for under $100. I'm kinda not wanting to spend that right
now, but if anyone else is interested in chipping in I'm willing
to throw $20 towards the purchase of a new chuck. If you'd like to
participate in this stage of drill press renewal, please respond
either on list or to me personally. If there's interest, I could stop
by the meeting tomorrow to coordinate funding & purchase.

Thanks,

John

* John Magolske <listmail at b79.net> [120624 15:03]:
> I came in yesterday and took a look at this. The taper on the arbor is
> running true, but internal taper on the chuck is damaged, causing it
> to sit improperly on the drill press spindle. It was in fact falling
> off in use (said the person who was using it when I came in). Not only
> is this unsafe, using the drill press in this state can lead to the
> arbor being damaged more severely. So I removed the chuck and took it
> home with me. I also took the chuck that was laying on the workbench
> nearby...the jacobs taper on that chuck did not match the taper on
> the drill press, and the chuck I removed from the drill press did not
> fit the arbor I removed from the other chuck. Seems their tapers had
> slightly different angles. This week I'll be measuring these tapers
> with a micrometer to determine if buying a new chuck will solve the
> problem.


-- 
John Magolske
http://B79.net/contact