Is that Jameco part number 26702CE?
http://www.jameco.com/Jameco/catalogs/c254/P255.pdf--- In
Homebrew_PCBs@yahoogroups.com, "Ray Dinwiddie"
<crdinwiddie@e...> wrote:
>
> Reading this series of posts begs my observations and solution to
> drilling small lot PCBs. I found that the runout on Dremel and its
> clones is too much for good carbide drill bit life. After trying 3
> Dremels I found that all had runout of .010 to .015. Tryed multiple
> collets with no improvement. The problem seemed to be that when the
> unit is off and runout is measured it is near zero, but when turned
> on the run out appears. With an 8 power loupe it can be seen at
> startup. Never took the motors apart but I suspect that one or both
> ends of the armature is rubber mounted as a shock absorber?.
>
> That being said, I found a cheap single speed drill motor at Jameco
> that has runout of less that .005. It is single speed (20k) and
$30.
> It is 1 11/16" Dia. and 4" long straight sided cylinder, greatly
> simplifing mounting in a small drill press. Also the collect shaft
> is about 1 1/2" long to give good field of view at the drill point.
> It is imported and I suspect it has sleave bearings and thus not a
> very long accurate life, but I can live with that given the very
low
> runout.
>
> --- In Homebrew_PCBs@yahoogroups.com, "pinoy_nyc@y..."
> <pinoy_nyc@y...> wrote:
> >
> > Hello,
> >
> >
> > I just bought the $39.00 craftsman universal drill stand, so I
> can now start drilling PCBs.
> http://www.sears.com/sr/javasr/product.do?
>
BV_UseBVCookie=Yes&vertical=TOOL&pid=00925923000&subcat=Drill+Doctor+
> %26+Drill+Attachments
> >
> > This stand has its own Drill Chuck.
> > Then you can just mount almost any drill to drive the built in
> chuck.
> >
> > I bought this stand since I thought I can use my power
> screwdriver to drive
> > the built in chuck, but I found out that the nose of the
> screwdriver is hex,
> > which wont be able to driver the built in chuck, which has a
round
> connector,
> > and assume you'll be connecting a drill chuck on top of it.
> >
> > is there some kind of an adaptor (from hex to round) so I can
> use my power screwdriver to drive the built in chuck?...
> >
> > I hope you understand what I'm saying.
> >
> > Thanks.
> >
> >
> >
> >
> > ---------------------------------
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>