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Originally Posted by M. Krass
Okay, I think I'm correct now -- wouldn't this end up being a hemisphere?
If you started with the driving shaft parallel to the ground, the wheel circumference would equal that of the hemispherical equator. As you pitch the shaft toward vertical, the effective wheel circumference approaches zero as the hemispherical pole comes into contact with the floor.
Does that make sense?
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yup. makes sense. although i doubt anyone'll really need it to turn 90 degrees tho.. so a hemisphere will work fine but by having a "custom" curved cone shape, you can vary the surface contact patch are too. well i guess diameter and tire material play an effect into it, the skinnier it is the easier it is to turn so maybe you can have a small contact patch in "high" and a bigger contact patch in "low". and well you can make the transition between "highest" and "lowest" at different rates too. oh. you can even use different materials so high can be slipperier than low. WOW. this idea is incredible. you can have the grippiest tires possible in the "lowest".. you dont even need to be able to turn.... and have an omniwheel at the "highest" so you can manuever as fast as you want..... again. WOW... the possiblities of such a system...
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Originally Posted by M. Krass
I have examined other methods of using centripetal force to engage a shifting mechanism. I would like, someday, to build such a thing to better get an appreciation for its challenges.
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wanna share?