Hole Insert Roller Bearing holder [for Dobsonian rockerbox telescope (Altitude Axis)]
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Roller bearings that can be added to any 1.5" hole.
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Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Attribution — Share Alike
These roller bearings are designed to fit into a 1.5" hole so you can add them to anything that you can use a hole saw on. (Wood works great...) The STL file uses 2x 608zz bearings and a spacer washer, plus 2x 3mm SHCS (20mm length).
The OpenSCAD file is parametric,so you can make them thinner or wider with fewer or more bearings, or offset the rollers up more than the current 1mm.
I designed them specifically to make the OTA on my Odyssey1 Dobsonian rockerbox telescope rotate very smoothly in the Altitude axis so that the belt drive pulley wouldn't struggle to control the Alt axis. But they are generic enough that you could use them in many situations.