Slip Ring System

thingiverse

Slip rings for a project are very expensive to purchase. Most of the lower cost versions will not carry current for POV led systems. This slip ring design was made for a 3D POV system for a student. The brushes were recovered from an old DC motor. The ring part themselves are more of the universal design that should be easily modified by changing the inside diameter to fit the motor shaft. This design is for a .5" motor shaft. Additional: This has been working like a champ. The power is consistent when delivering 3+ Amps. Since parts are just what-ever is around, please use this design as an example. The concept is solid and it does perform well. Print Settings Printer: Raise3D N2 Rafts: Yes Supports: No Resolution: .15 Infill: 50% Notes: The brush holder might need support depending on your design. My design needed it. Post-Printing Usage The actual rings are .75" I.D. copper pipe. Solder the wire to the inside of the ring and position it to the slot that is insulated from the shaft. Use the slots that are closest to the shaft to carry the wires through. Theoretically, you can use 5 slip rings with this design. The rings are secured to the shaft with 4-40 set screws. Make sure the screws are short enough to not short out the copper ring to the shaft. The brush holder is the wild card. It totally depends on the carbon brushes used and how you want to mount it. Using the original design file (rsdoc), you can see how I made the holder and capture the brushes. The hardware used is a #10 washer to capture the brush in the channel, 10-32 nut and 10-32 bolt to connect to and tighten the brush to the ring.