Harmonic Drive Telescope Mount
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Harmonic Drive (Strain Wave) Go-To, computerized telescope mount head. *Partially 3D Printable.
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Updated at source:
Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Attribution — Share Alike
NOTE: I have a few Carbon Fiber Tubes for use in this mount. If you would like to purchase a set from me, contact me via discord - https://discord.gg/QdPa9ed6Jq
Consider supporting my work on Patreon:
https://www.patreon.com/c/Designbydave
Now available in Equatorial mode - https://www.printables.com/model/1111132-equatorial-harmonic-drive-telescope-mount
This is a powered, computerized, “go-to” telescope mount capably of carrying a telescope payload of ~10+ pounds. I designed it specifically to carry my Carbon Fiber 6 inch Newtonian. It's powered by the open source software OnStep. This is only partially 3D Printable but you should be able to source or fabricate the non-printable parts. A BoM is included.
Build Video -
Update 11-22-23: Changed to 5:1 gearbox stepper motors (see BoM.) This makes for MUCH faster go-to and slew rates as well as almost silent operation. I am much happier with this configuration.
Update 10/28/23 - Added Counterweight. Uses carbon tubes filled with lead shot and epoxy.
Wedge for Equatorial Mode – https://s.click.aliexpress.com/e/_oEVrxKQ
or – https://s.click.aliexpress.com/e/_oDqfAEK
Notes:
The Harmonic Drives might take a while to ship from China, so order those asap
I used sendcutsend.com for the aluminum and carbon fiber plate parts
You will need to make the round, aluminum “PLUG_BASE” part or source a machine shop to make that for you. It might be possible to 3D Print it, but I’m not sure that will be strong enough. All of the mount’s loading is carried by this part so be careful.
The OnStep firmware and configuration that I’m using are included in the Google Drive Link. You will likely need to change some of those settings depending on your use.
You will need a suitable tripod.