Does anyone have tips for etching dual layer pcbs?

[lrgaraujo]

Hey guys,

I was wondering if anyone has tips for etching dual layer pcbs (mostly how to get both sides well aligned)

Thanks

[jimilee]

I didn't k ow that was a thing. I'm interested in the answer too.


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[davent]

A few old threads at diystompboxes...

https://www.diystompboxes.com/smfforum/index.php?topic=91920.0

https://www.diystompboxes.com/smfforum/index.php?topic=113924.msg1056118#msg1056118

https://www.diystompboxes.com/smfforum/index.php?topic=79338.msg654523#msg654523
dave

[thomasha]

My first try was aligning the two pieces of paper with the layout against the light and taping the edges just far away enough so that I could slip the PCB inside. It worked nicely.


Here you already see the connections from one side to the other.
Since it was also my first one, I kept changing sides around the main components to accommodate all the parts as close as possible. But, as you can see, they align pretty well for a small board.

This one is just for reference. Lots of pretty small smd stuff there.

[lrgaraujo]

Thanks for the tips, guys

Will report back when I have some results