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Make a 3.3 V & 5v Power Supply @ 1.5 Amp.
Fast Electric Skateboard LiPo Charging System (BMS + CC/VC PSU)
OscilloPhone: Use your Smartphone as an Oscilloscope / Signal Generator
Camping Chuck Box
The Unstoppable Paper Airplane
How To Make The AstroDagger Paper Airplane
Nixie Tube Ornament
Mahogany & brass nixie clock (with IR and UART control)
Lithium Iron Phosphate (LifePO4) solar storage battery bank
Solar Powering My Home!
From File to Knife (with simple tools)
how to build a cargo bike