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Do I have to double them up on one axel?
in a direction not exactly parallel to the line of motion (forward, ect.) thus creating a loss of energy- Hope this helped
Disadvantages of Omni Wheel Drive There are unfortunately several disadvantages to omni-wheel drive. Omni-wheels have poor efficiency because not all wheels rotate in the direction of robot movement. There are high losses from friction too.
The excess heat/energey is expelled through friction.
I am making a 4 wheeled omni-bot similar to your Fuzzy robot. (Same wheel positions)
Yes what about these?http://store.kornylak.com/SearchResults.asp?Cat=1 (All on this page minus the ones above $5.75)I realize you would have to double them up.
The ones with those polypropylene (or whatever plastic it is) coated rollers will give sufficient traction?Are those the ones you used on Fuzzy?
I clicked on the:I used http://www.omniwheel.com/cgi-bin/plugins/MivaEmpresas/miva?plugins/MivaMerchants/merchant.mvc+Screen=PROD&Store_Code=KCWD&Product_Code=FXA309&Category_Code=Transwheel (It said 'this omni wheel' as the link) for my robot.I couldnt tell because broken linkI think Kornylak recently renovated their site