Cable drum from filament spool with slip ring and ball bearings
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An overengineered cable drum from a filament spool. The wire cap can be found here: https://www.printables.com/model/950
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Model information
- Source
- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Attribution
I needed a drum to roll 50 m of wire that can be unrolled while connected. The cable connects a tracked robot to the remote. So the robot pulls the cable while the other end of the cable stays connected to the remote.
Therefore I came with this solution:
- take a spare filament spool holder
- a slip ring and a piece of aluminum tube
- 2 ball bearings - I had a 6mm inner diameter and a 10mm inner diameter. Through the 6mm I inserted a M6 hex screw that acts as an axle and through the 10mm ballbearing I insterted the end of the slip ring.
- I also made a cover for the cables, just to make is safer
The 2 parts of the holder are held in position by 3 pcs of 4 mm x 50 mm wood screws.