Damus
dorotaC profile picture
dorotaC
@dorotaC
Say hello to my #PCB manufacturing lab. Here is the 3D printer showering the board in purple rays.

In those bottles live the necessary chemicals. Neutralize before disposing!

They go to trays where the board takes a bath. First, a minute in NaOH to develop, then (after a rinse in water), 20min of persulfate to etch away the copper. The big bowl holds warm water.

@nprofile1q... pics as promised!
#chemistry #electronics #DIY




2
dorotaC · 1w
nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq5s38rs0v6vn6l0ztqlw5xpxmwwlwqflta6cdk7c5u6lax27qkxcq2l2m6h With 0.5mm wide traces, I wasn't worried about uneven etching, so I only looked at the PCB when it was nearly finished. The reason the project didn't work yesterday is that I left the c...
q3k :blobcatcoffee: · 1w
nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqkedxdacmlj8utzpdv2ud46d72gyzac6v0y3u2e2g596umumzdwrq5dhrzl nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq5s38rs0v6vn6l0ztqlw5xpxmwwlwqflta6cdk7c5u6lax27qkxcq2l2m6h Neat, using an SLA printer for board exposure is something I should defi...