double side pcbs how to align

[kostas]

The question is simlple. How can i align good a double sided pcb?

What i do now is that i first stick the two slides together (front and back side) using a tape and i make something like an envelope that i pun inside the double sided pcb. But using this method i always have some misalignement, sometimes big and sometimes small.

[kam]

Check this one

[Mosquito]

This hole wont be a problem when etching?

[ScubaCap]

like what problem?

[Alex]

There will be no problem. After all, you can as well drill outside the pcb. For example at the 4 corners of the board where you probably may have holes for screws...

[kam]

which would be the best i assume

[Andre]

Or also you can make the transparencies quite larger than the board and make some cross signs on both sides. There you can put a pin that will only wold the transparencies and not the board. I use this method and never miss a micro

[kam]

That would be also very nice and easy as long as the board is smaller than the transparency.

[kostas]

i have try it and it works!
Thanks guys

[kam]

of course it works. As long as you do it correct 

[tpone]

Have faith