A traditional mechanical drive with gears and shafts is expensive, complicated and
heavy so only simple and straight runs are accepted.
A belt drive is restricted to short distances because it is necessary to avoid belt
extensions and only short belts can be used. Moreover the belt does not work very
well out of its plane and also in this case only simple runs are accepted.
A rope-ring drive is not only a light and cheap solution but it is also very adaptable,
long and twisted runs with deviations for any direction are not a problem.
The rope-ring drive is a patent Antal
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