We're thinking of designing and manufacturing some servos aimed at the robotics hobby market, with 360 degree rotation and feedback provided via an optical encoder - target prices about $20-25 each using miniature precision motor / gearbox combos similar to these:
It would seem that many people use RC servos, though there seem to be some compromises, and I think we can improve on weight and torque as well as offering arbitrary positioning.
I'd appreciate some thoughts, about the shortcomings of RC servos, and on which areas we should focus to design a servo that's better for building robots...
Also, does anyone know of any linear servos? Do you think those would be a popular product, and if so in what sort of size / configuration?
Cheers,
Tom.