Quote:
Originally Posted by AstroJunk
An AM5 is high on my list for a number of reasons but mainly the amazingly compact size for its weight capability as a travel grab and go (and I am unashamedly beholden to the programming skills of ZWO and their eco-system, so I know it will perform).
A couple of thoughts based on limited knowledge, so feel free to debate:
Harmonic drives have no backlash, and I mean NO backlash, it's why they are used in robotics. Even the best tuned belt driven mount i've seen has a few arc seconds of give which can cause issues on blustery nights. I'd love to see the imaging/guiding results on far less than perfect nights in the field with this mount.
The ZWO uses stepper motors rather than servos like others. Stepper motors lock without power - it's actually quite hard but not impossible to move them. The break on power failure for the RA drive suggests that 13+ kg without counterweights is sufficient to overcome the natural resistance to movement!
Looking forward to some real world reviews!
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Given the issues I had with my copy of the recent Star Adventurer GTi, I'm also interested in some real world reviews of this.
I don't have a lot of knowledge in relation to the "strain wave" system though. Anybody care to recommend a good article / video on this?