This is the easy ways and cheapest way to make your own etching machine for PCB / electronic hobbies, lots of DIY machine I have build for my home made project but I thing this one is the EASYest and the CHEApest way, or even will cost you not even $10 to build if you have the material wasted at your home and you not use it.
now I am going to describe the making process step by step
Step 1: Stuff Material
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