Shannon is correct, once you have made you initial alignment, without a PCB in place, i.e. just looking at the drill bit through the drill stands base plate hole, getting the cross hairs matching up with the tip of the drill bit,and the frame secured, it will remain aligned, you then move the PCB around to line up the Pad with the cross hairs, the bit will drill at exactly that point every time. great web site by the way, plenty of interesting projects!!
David
--- In Homebrew_PCBs@yahoogroups.com, Shannon Haworth <shannon.haworth@...> wrote:
>
> The cross-hairs on the view finder show where the hole will be, once it is
> made. No need to see the bit, the two are aligned.
>
> On Mon, Apr 16, 2012 at 2:30 PM, bebx2000 <bebx2000@...> wrote:
>
> > ∗∗
> >
> >
> > Could anyone offer an opinion on this drilling fixture?
> >
> >
> > http://www.imajeenyus.com/electronics/20080628_pcb_drilling_viewer/index.shtml
> >
> > I can see that it shows the pad and hole on the copper side, but I can't
> > understand how you align the drill bit with respect to the fixture because
> > you can't see the dot until the hole is drilled.
> >
> > He also has a nice surface mount soldering aid under electronics.
> >
> > Baxter
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>