What are slip rings and why do some motors use them?
Arduino motor control with slipring - YouTube
Small Reduction Stepper Motor - 5VDC 32-Step 1/16 Gearing : ID 858 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Taidacent Hollow Slip Ring Signal Power Continued 2/4/6/12 Road Collector Ring Conductive Electric Motor Slip Ring Rotating Connector (6 Wire 10A Inner hole 38.1mm OD 93mm) - Amazon.com
12.7mm Hole Slip Ring Hollow Shaft Through Bore Rotating Miniature Electrical Connector 6 Wires 10a - Stepper Motor - AliExpress
Gimbal Mount Slip Ring Version - Newmark Systems - YouTube
Small Reduction Stepper Motor - 12VDC 32-Step 1/16 Gearing : ID 918 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Taidacent Hollow Electrical Slip Ring Rotary Electrical Contact 2/4/6/12 Road Collector Ring Conductive Electric Motor Slip Ring Rotating Connector (4 wire 2A Inner Hole 5mm Outer Diameter 22mm) - Amazon.com
Taidacent Hollow Slip Ring Rotary Electrical Contact 2/4/6/12 Wires Collector Ring Conductive Electric Motor Slip Ring Rotating Connector (6 Wires 10A Inner Hole 12.7mm OD 54mm) - Amazon.com
STL file Electric slip ring・3D print object to download・Cults