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Spectrum 3847: 5mm HTD Elevator Idler Pulleys
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Idlers used to make a 5mm HTD Timing Belt driven elevator for the FIRST Robotics Competition.
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Model information
- Source
- Printables
- Category
- RC & Robotics
- License
- Creative Commons — Public Domain
- Uses 2x ⅝” OD bearings. R4 bearings
- If using a standard number #10 bolt use ¼” OD 0.194” ID aluminum tube as a spacer
- https://www.mcmaster.com/catalog/129/190/9390N12
- You can use a 1/4:” shoulder, 10-32 bolt which is the preferred option
- Bolt Depot has them for around $1.20 each when you buy 25
- With a shoulder bolt or tube spacer, no clamping force is put on the 3D-printed parts.
- The chamfers allow it to be printed with
No supports - Bolts into a tube plug slid into the tube