Homebrew PCBs

On Wed, 27 Aug 2014 06:22:57 -0700, you wrote:

>Couldn't you print two single sided boards on thin material then epoxy them together?
>
>\ufffd

I do.

Registration of the boards is critical.

Really critical.

When you do it properly, the boards work very well.

PS: in EAGLE (for instance), you print the bottom without mirrored,
and without upside down.  Rotate the board to get the long axis
vertical on the printer.

For the top layer, do as above, but select mirrored and upside down.
This prints each part of the board on the same area of the bottom
board, so that the upper left parts of the board are printed upper
left (say) on the printout, and that holds for top and bottom.   If
the printer has distortions due to paper feed, this tends to even them
out between the layers.

Harvey