Pcb manufacturing

How to make your own photo pcbs.

My brother and I manufacture our own photo pcbs and it is not as difficult as it may seem at first. You will need a saw, a UV lightbox to expose, some chemicals to develop & etch and finally a drillingmachine.

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This is the two chemicals we use to develop the pcbs: soda lye (sodium hydroxide) and waterglass (sodium silicate).