I built an Equatorial Mount for astronomy, with two HarmonicDrive gearboxes
I built a portable, lightweight, yet mighty equatorial mount with two HarmonicDrive gearboxes. The EQ mount weighs about 16lbs and can support 25lbs without counterweights, or 70 lbs with counterweights.
Update: I finally finished cleaning up my design files and released all of them (part design, solidworks drawings, BoMs, PCB boards and so on) here:
BGMs:
Podington Bear - Bated Breath
Gotye - State Of The Art
Portugal. The Man - Feel It Still
Time to Pretend - Lazer Boomerang