A crude lashup of a ZVS oscillator helical induction heater operating at 150W. Work coil inductance: ~1.2uH, forced water cooled. Tank capacitor: 1.85uF. LC work circuit operating frequency: 100-110kHz (f=1/2pi(sqrt(LC)), depending on work piece material, dimenisions. Uses 2 IRFP260N MOSFETs forced air cooled. Updates to come with better capacitor bank, power supply, better MOSFETs, and direct water cooling of MOSFETs.
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https://www.youtube.com/watch?v=yfU4pm0_L8E
A simple translational robotic arm that I built that emulates the user's input in real-time, similar to a Hot Cell arm or ROV robotic arm. The microcontroller is a PIC18F27Q10, and the servos are 3 x 10kg (waist, wrist, gripper) servos, and 3 25kg (shoulder, 2 elbows) servos. Powered by 2 18650 cells. Printed in PLA
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https://www.youtube.com/watch?v=rRkXkwGUpIM