That’s what [Russ] did to make needed improvements to his CNC flat-coil winder, which uses a modified delta-style 3D-printer to roll fine magnet wire out onto adhesive paper to form beautiful ...

Arguably, the most tedious part of any Tesla coil build is winding the transformer. Getting that fine wire wound onto a suitable form, making everything neat, and making sure it’s electrically ...

Equipment: A flashlight connected in series with a wire coil, a small (~2L) dewar of liquid nitrogen, safety goggles and safety gloves. What it does: When the coil is at room temperature, the ...