Coil winder (cheap, automatic, relay controlled )

thingiverse

The electrical diagram has been uploaded and a 3D model created. Two components were sourced from another user at Thingiverse: https://www.thingiverse.com/thing:2847880. A small gear that is compatible with https://www.thingiverse.com/thing:3085918 can be used; otherwise, any metric gear will suffice. The following mechanical materials are required: 1. 1 x 8mm x 100mm bolt and 5 nuts 2. 1 x 6mm x 85mm bolt and 2 nuts 3. 1 x 4mm x 35mm bolt and 1 nut 4. 4 x 3mm x 20mm bolts and 4 nuts 5. 2 x 3mm x 25mm bolts and 2 nuts 6. 2 x 3mm x 30mm bolts and 2 nuts A few 3mm screws will be needed, depending on the material chosen for the base. The following components are also required: 1. 2 x 608 ball bearings Electrical materials include: 1. Low-voltage wire capable of handling up to 2 Amps at a voltage of 12 Volts 2. 2 x 12V relays with 2 separate contacts each 3. 4 x end/limit switches, 22mm in size 4. 5 x 3.7V Lithium batteries 5. 2 x battery holders for 2 batteries each 6. 1 x battery holder for 1 battery 7. 1 x 4.5V or 6V DC motor