Hi Alan,
How about a couple of extra pictures? Would help in building mine.
1. the mounting of the screw end opposite to the motor with bearings
2. Close up of the nuts on the screw shaft.
Thanks,
Myc
--- In Homebrew_PCBs@yahoogroups.com, Alan King <alan@n...> wrote:
> Ed Okerson wrote:
>
>
> >
> > I used rubber hose, actually vacuum line from the auto parts
store. Clamp
> > it on the shaft and threaded rod with hose clamps. With that
setup
> > alignment of the motor to the rod is not that critical.
> >
> > Ed
> >
>
> Yep that works well too, but takes another bearing at the motor
end. Once I
> got good enough at how to get things to align properly, I just let
the motor
> shaft be the other alignment point.
>
>
> And either drill a point hole for the set screw, or tighten it
really tight
> to cut its sharp edge into the metal. Either way get the screw in
tight, then
> back it out just a little on one side of the coupler and loctite
it. That will
> give it just a little bit of wiggle room while still keeping
things locked together.
>
> Really the hose works fine and is a bit easier, but you must
have the ball
> bearing. Hard to find not rolled hose, so even a short piece will
be trying to
> put an angle at the shaft to rod connection. Takes very little of
that to bind
> things when you have a nut traveling on the rod.
>
> Also forgot to mention that the tool is the $18 or so Handi
from wall mart.
> Very smooth, I like it better than my dremel. But dremel has
quite a few newer
> models now, so maybe some are better.
>
> NIB magnets with silicone or plastidip around them make
excellent temp hold
> downs too, put screws or other magnets into the board to hold
things down.
> Clamps work too but the magnets can do the job and don't get in
the way as much
> as the clamps.
>
> Alan