The replacement of the lens with the punch is a good idea.
I was worried about precision between the hole and the registration pin.
Do you have any idea where to get the hole puncher and a matching hole to punch into?
Most of the stuff I have found was like metal punches.
--- In Homebrew_PCBs@yahoogroups.com, "cunningfellow" <andrewm1973@...> wrote:
>
>
>
> > crazy_geekchick wrote:
> >
> > I was wanting to make sure that everything
> > lined up on both sides of a board -- easily.
> > I thought a solution would be to make a
> > registration hole punch. I know the pro ones
> > have cameras looking down the bore of the
> > hole punch, but I wasn't exactly sure where
> > to begin making a diy version of that.
> >
> > I was thinking a solenoid with some sort of
> > hole puncher, but I wouldn't know where to
> > get precise equipment for the puncher itself.
> >
> > Any ideas?
>
> One I have seen actually had a loupe/lens with
> a sight on it that looked down the bore.
>
> When you lined it up, you pulled out the lens
> and replaced it with a metal punch part.
>
> Doesn't look like too hard an idea to make.
>