[sdiy] tinning home etched boards?

[Adam Schabtach]

> i think the size of the traces are great. and the pads WOULD 
> be great if it werent for the fact the drill bit often goes a 
> bit to one side or the other. this damn drel drill press is a 
> hunk of junk in regards to drilling perfectly straight.

Now that I think about it further, I recall that the problem I had when I
tried to use my Dremel in a drill press attachment to drill PCBs is that the
Dremel itself did not center the bit correctly. The tip of the bit moved in
a tiny circle rather than just rotating around its center. This made
drilling holes nearly impossible because the bit tended to wander around.
Once I figured that out I switched to using a real drill press. It was sort
of surprising that a $100 Chinese-made Delta benchtop press drilled more
precisely than a Dremel supposedly built for small, precise work, but it was
the case.

--Adam