CNC Coil Winding Machine

thingiverse

We had a broken old 3D printer lying around, and I needed to wind several hundred solenoids. So, I figured I'd build a coil winding machine using the parts available. The parts are standard stuff from the 3D printer, so getting them shouldn't be an issue. Apart from the STL files, you'll need: 1. A 1/4" x 150mm ACME lead screw 2. A nut with flange for the lead screw (dimensions in the SolidWorks drawings) 3. Two thin long screws (#4 x 1 1/2") for the flange 4. Two rectified rods Ø8 x 165mm 5. Two linear bearings 8mm 6. Two steppers NEMA17 7. Twelve #8 x 1/2" screws with nuts 8. Two 3/8 x 7/8 x 9/32 Ball Bearings (available at Amazon) 9. A chuck converter for 1/4" hex shank (available at Amazon) You'll also need: 1. A Printrboard (I used Rev D) 2. An end switch, cables, etc. to connect the board to steppers and power supply 3. Lots of nylon zipties (2mm wide) The bearing mount and hex shaft were SLA printed because they required precise parts. The bearing mount can be FDM'd, but the hex shaft coupler may break if printed with FDM. You might need to tweak the design to fit your needs. I wrote a software in VB.net for specifying the coil and sending the G code to the printer board. Here's the link: https://github.com/3dfernando/CNC-Coil-Winding-Machine Videos of it working are available here: https://youtu.be/0mu_EfG2icY https://youtu.be/h9c45MI3rXQ Thanks to Maximiliano Santillan for his GrabCAD models for the NEMA17 stepper!