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DIY PCB using Liquid Photoresist
Great work, we really appreciate your DIY spirit. while it's better to outsource this job to a pcb supplier, iFastPCB is a dedicated China PCB Manufacturer offering instant online PCB Quote and Order system, 2 layers prototypes start from $12 learn more: http://www.ifastpcb.com/pcb/quote.html
The sodium hydroxide solution has to be boiling hot to help strip the cured paint off. You should do it in a stainless steel pan or pot, and be VERY CAREFUL! Use gloves and work slowly. Don't breath the fumes and have good ventilation. The paint should strip off in a few mins while the pcb is simmering.
Yes the pcb traces are inverted in EAGLE. Thank you for the kind words!
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