Short film about how to make double sided pcbs with good layer alignment using lithographic technology at home.
Two things are still missing: copper plating of the vias, and lithographic method for solder mask.
The process last arround 3-4h, and the result is very satisfying
- One more trick for the Positiv20: -
Many people struggle (included me also) how to apply the Positiv20 to form an uniform layer, some times, no matter how clean the board was. I found out some way to do it rig
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