Homebrew PCBs

I agree completly.  The drilling depth (stroke) required for PCBs is 
less than 1/4" which is fine for a pivoting press as long as the 
pivot point is back a bit from the tool center line.  This sort of 
rig only requires a moderate amount of precision in construction and 
about the only "critical" item is the hinges - you wouldn't want 
sloppy ones.  But otherwise, it don't get much simpler than that.

If the drilling stroke was an inch or so - even a 1/2", problems 
could crop up.

Chris



--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@g...> wrote:
>
> No sliding system can be built with the same low play as the 
pivoting  
> press has, as easily.
> A pivoting press can probably be built in the time it takes to 
find  
> suitable rails and sliding parts, or ordering expensive linear 
bearings.
> 
> ST
> 
> 
> On Mon, 12 Dec 2005 21:57:30 +0100, soffee83 <soffee83@y...> wrote:
> 
> > Another thought-
> >
> >
> > If anyone could think of some type of readily available metal
> >
> > standoffs which could slide up and down a greased chrome 
pipe,etc.,
> >
> > that would be simple as crap. I've got drum hardware here which 
might
> >
> > be able to hold the main tube down (like bass drum tomtom 
mounts), but
> >
> > you could probably do a two piece wooden clamp around the tube 
and
> >
> > screw it down to the work surface. The top could also be 
strengthened
> >
> > by a wood rig. I've seen guys use a homemade pulley system on a 
radial
> >
> > saw, with counter weights hanging from the far end to return the 
saw
> >
> > to the back.
> >
> >
> > -George
> >
> >
> > PS- I know the Dremel presses are cheap as dirt.
> >
>