John Woodgate wrote:
Possibly, the thing to do is to simulate a pad on a board with a Dremel
drill and router and take that to show what you want to do.
Here's a poor man's "Dremel technique" for pads that I use.
Using a Dremel drill press, I place a 2" square double sided
pc board on the drill press table against a square which is
held against the edge of the press table. I lower the drill to
cut the copper, and slide the board, using the square as an
edge guide. I do this repeatedly, moving the square between
cuts. Then I pivot the board 90 degrees, and do it all over
again. The result is a grid of pads. The 2" square board can
be mounted on a larger board with as many other 2" boards
as are needed. All wiring is done on the top of the board,
except for vias for ground to the underside. The dremel can
be used to groove the underside, the via wire can be bent into
the groove, and soldered, then filed & sanded to keep it as
flat as possible. It gives decent, not great results, but
certainly acceptable. 'Course the cutter would be sooo much
better!