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The material used to build this machine is basicly simple, only a few part crutial for the main item

so ...... lets Make it ....



Material use :

1. Plastic container to hold the unit (pump and etching liquid) -- Please make sure you only using the PLASTIC / RESIN / FIBER GLASS material otherwise if you use the metal thinging will cause you a disaster (since the plastic is corotion proof)

2. Mini DC pump -- this is the main unit to make this machine operated.
Basicly you can use any type of the pump, but again MAKE SURE the material is PLastic, NOT METAL. --- WILL BE EXPLAINED IN THE NEXT STEP

3.PLASTIC PIPE TO DISTRIBUTED THE LIQUID ECTHAN

4. OFF COUSE YOU WILL NEED A 12V POWER SUPLY (OR DEPENDING YOUR MOTOR SPECIFICATION)  TO MEKE  YOUR MOTOR RUNING AND PUMPING AND DISTRIBUTED THE ETCHAN LIQUID FOR YOU

原文链接地址：http://www.instructables.com/id/PCB-etching-machine-from-scratch-VERY-easy-to-b/