OnStep gears and related attachments for a Dobsonian telescope (customisable)
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Solutions to assist in motorising a Dobsonian telescope
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Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Attribution
This is my method for attaching my nema 17 motors to a dobsonian telescope. The Az is universal, the alt bearings are specific to a Bintel / Zhumell dob. The second alt bearing is for a 8" Saxon / Skywatcher dob. The Fusion files are included and you can edit the parameters for your scope (I've tested the Bintel on a 8" and 12" and the Saxon/skywatcher on a 8" and 10" successfully)
I printed the Saxon bracket with the gears at the top. Gives a neater finish, but uses a fair amount of support, so I recommend perhaps using custom supports in your slicer of choice. If you do print in different orientations, make sure you erase supports around the gears!
Filament: PLA+
Layer height: 0.3mm
Infill: 15% - 20%
Wall line count: 3 (1.2mm total)