Last week we etched circuit boards in Circuit Design class. We had the choice of etching with acid or vinegar. My partner, Danara, chose acid while I tried with vinegar. Here’s what happened. The star design is Danara’s.
Printed our designs onto blue paper to be transferred onto the copper.
Soaking in water.
Danara’s board in acid. Mine in vinegar, with a dash of salt.
Danara’s board looked great, especially after it was tinted. Mine didn’t come out so well. womp womp
Vinegar took a lot longer. Because we had a couple of boards using the same container of vinegar, the residue from one board would float onto another board. Danara had her own container of acid, which did a super clean job. I may try again with vinegar, one day. For now, I’ll do over with acid.