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Hello friends in this video I have built a PCB etching machine.
this machine used or chemical treatment of Copper clad PCB

first black spray paint on blank copper clad PCB, then I trace the PCB track using Laser machine.
Then I dip this PCB in solution off ferrous chloride and here this machine came in picture, this machine continues to shake PCB so that exposed copper evenly dissolve in the solution.

PCB file for DC motor speed control
https://drive.google.com/file/d/10GNT...





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Website : http://electricdiylab.com/
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I use Epidamic sound for my back ground music if you like it you can check them out
https://www.epidemicsound.com/referra...


** This video is made for educational purposes only. Please use your own judgment, knowledge, care, and precaution if you plan to replicate. ** WhatsApp for custom projects +91 7600079068