Homebrew PCBs

For TT, I don't do anything at all complicated.

All I do is print the two toner transfer sheets.
Hold them face to face with a light behind them, bright enough to see 
the vias (the back door of the house when the sun is shining works 
remarkably well, other than that, a 50W lamp).
When aligned, tape one end of the sheets to form a hinge between the two 
sheets.
Double-check the alignment.

I've done dozens of boards this way (my second ever board was 2 sided) 
and I've only had one that was a bit off - and even then, it wasn't 
sufficiently off that it couldn't be used. All the other boards were 
perfect. I've done boards with 8/8 track/gaps this way without problems. 
I think overcomplicating the registration process can make things harder.

El 07/04/10 18:40, awakephd escribi\ufffd:
> I have tried both of the procedures described below, with varying results. The last board I did, however, I kept having trouble getting everything to line up using either of these. Finally, I wiped the board clean on both sides and tried something else -- something I had tried before, with only mediocre results, but since I was having so much trouble I decided to give it another try:
>