Al,
Make a Jig out of 1/4" thick PVC or Plexi-Glass. This holds the
blank to the bed. You mount two pins, one top and bottom of the
center line of the Jig. The blank boards have mating holes one top
and one bottom in their centerline to match the pins. You can use
four pins one in each corner of the board. Have the machine drill the
holes for the pins so they are exactly in the center line of your
workspace. To test your two GCodes for alignment, use a piece of
paper that also has alignment holes. Mount a piece of pencil lead in
your machine. Hold the paper up to the light to test the alignment.
John
--- In Homebrew_PCBs@yahoogroups.com, "Al Schemmer" <al@a...> wrote:
> Hello everyone,
> I am assembling a homebuilt too to make circuit boards from
old printers,
> and am looking for ideas to make a small easy table to hold them, I
will be
> wanting to do double sided boards, so some way of being able to keep
> alingment when turning them over would be good,
> i only expect to be making 4x6 boards as that is the limitation of
the free
> eagle cad.
>
> Any suggestions would be very helpful
>
>
> Al WB0YRQ