In this three part video series we watch [Dirk Herrendoerfer] go from scraps to a nice 3D printed assembly as he iterates through the design of a pen plotter for making circuit boards.

The Mostronome is a 1975 electronic metronome that reimagined musical timing with its whistle-like tone. This vintage circuit ...

The flyback transformer is custom-wound with copper wire to achieve the necessary inductance for plasma generation. Its AC output is rectified to DC using a high-voltage microwave diode, as DC is ...

The kit comes with Arduino Mega, which will serve as the brain, along with ESP8266 Wi-Fi Shield for remote control, a motor ...