My First PCB

Published on 2015-01-21 in µBob biped robot.

Since I had the schematic in Fritzing already, I decided to use it for a test of the printed circuit board etching process, which I wanted to learn. So I made a simple design for it:

Then I printed it on a shiny calendar paper on my laser printer, and transferred the toner with an iron. Initially I made a mistake and printed it like it was, while I should have printed a mirrored version:

But I quickly re-did the whole thing. Then the acid bath, and cutting the margins, and voila, the finished PCB:

I still need to drill the holes, but I don’t have the drill bit for the 0.5mm holes – waiting for it to ship in a day or two.