Quote:
Originally Posted by Sperkowsky
A linear actuater would have even awesome. Unfortunately I've heard nothing but awful things about darts and with a price as high as theirs I really decided not to consider them an option.
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I haven't yet heard anything bad about DARTs; do you have some discussions to link to on that? Would be good to know for the future.
As you've probably learned, rotational arm joints are sometimes tricky and require some care to do with the standard sprocket at the pivot point method of rotation. You could probably have attempted something with pneumatics, which simplifies control and is easier to make strong. Stack two pistons of different throw length on each other and now you have a four position actuator.