Quote:
Originally Posted by Mr V
Another benefit is that it reduces the cantilever of the axle by putting the wheels as close to the bearing as possible rather than spacing it out for two sprockets and any spacer required to prevent the chain from rubbing on the frame or wheels.
|
Thirded. Saint-Venant's Principle is useful. Additionally, using 2x2 box tubing rather than 1x2 would help things out. In normal cantilevered bearing applications, it's preferable to keep the bearings 3-5 characteristic distances (read diameters) apart, so with a 0.5" shaft, having the bearings 2" apart (4 characteristic distances) would really be ideal for long bearing life. But...space is at a premium and R8 bearings can be found rather cheaply.
Then there's the electronics, pneumatics, and all that stuff on top that will magically make the ball score billions of points. That will add up to a lot of weight. - MrForbes [more] 
13-07-2016, 13:22
Linear Mode
