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#7
13-02-10, 00:05
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A caution when planning the rotating widget
Keep in mind that the hydraulic jacks are single acting, in other words they push beautifully but do a poor job resisting being pulled.
For the turning mechanism you might want to look at a worm gear. Worm gears have a quite high reduction ratio and don't generally drive back from the load, only from the input to the worm. Of course, if the load is perfectly balanced it should only need enough force to overcome the friction in the support........ 
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