Toroid Winder

thingiverse

I recently found myself tasked with winding numerous toroids featuring upwards of 100 windings, which prompted me to explore more efficient methods for accomplishing this task. Consequently, I devised a low-cost solution tailored specifically to wrap rings boasting an outer diameter of 1.592 inches, an inner diameter of 1.180 inches, and a height of 0.5 inches. The bobbin is designed to be removable, allowing users to easily wrap it and then snap it back into place while still permitting free spinning. All components can be 3D printed except for the motor and hardware. Rather than relying on a motor, individuals could opt for a hand crank - I plan to upload the 3D printable model at a later date. Feel free to comment and suggest improvements; I'm confident that the gear ratio or style could be significantly enhanced. For my next iteration, I intend to incorporate a worm drive. The device is secured using 0-80 screws and nuts (five of each), requiring a small spring pin to connect the gate to the large ring as well as the two ends of the bobbin together. Additionally, four 4-40 screws and nuts (two of each) are needed to secure the motor in place. I am utilizing a 28BYJ-48 stepper motor, which is relatively slow and serves only as a demonstration model.