"No one's ever done that before!" (progress)
We printed the first circuit board for In Touch. Everyone at ITP was very impressed, which was kind of nice, and the board came out really pretty, especially since the substrate is white(ish).
the process:
after printing (with a laser printer) the traces on glossy paper, press with iron for ~3 minutes, to transfer the toner to the copper clad
soak in (soapy) warm water till the paper peels off on its own
use a sharpie to fill in broken traces, and a dentist's tool (or anything pointy i imagine) to remove excess toner/paper
dip in ferric chloride for a while till only the traces are left. then rinse with water and use acetone to clean the toner off of the copper traces
drill the holes for the components using really small drill bits carefully cause they break easily!
