Homebrew PCBs

I think I'll stick to photo etching. Print onto transparency with my 
cheap Epson inkjet (green works best for some reason), expose in a light 
box for 7 minutes, Develop in weak caustic soda solution for 2 mins, 
etch.  Works great for me :-) Afterwards I stick board in the cnc mill 
and drill the holes for a perfect finish. Apart from the hassle of 
rubbing off the paper and fixing track breaks with an etch resist pen 
the distortion you get with TT made it impossible for me to drill the 
holes with CNC.

Les




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