Quote:
Originally Posted by JohnH
A word of caution - yes no backlash, no need for a CW, portable, high capacity but for a portable mount bear in mind this design has relatively high (albeit smooth) PE. It may be you can use PEC to compensate but if not you will need to guide...this may not be an issue for your application but it is something to check...
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You usually cannot use PEC on harmonic drives. The PE changes based on the scope, weight and where the mount is pointing. With the RST-135 (non-encoder version) most users guide at 0.5s to ensure they keep on top of the PE.