Archive for the ‘Mechatronics’ Category

PCBs (Part 3)

Part 1, 2, 3, 4 Once we have our gerber files ready, it is time for “printing” the PCB. For a long time (and a long time ago) I used single sided coated copper Bakelite boards. Then I would copy the circuitĀ  on copper using a special permanent ink pen (in negative) and immerse the […]

Metal detector (Part 1)

“Dear cousin, I lost my keys in the middle of the meadows, would you please make a metal detector for me ? Urgent !“ This is really how this project started ! More or less, as I have in mind the design of anĀ Earth’s Field Nuclear Magnetic Resonance spectrometer which features magnetic fields sensors on […]