Quote:
Originally Posted by dtengineering
Nice. You may want to consider a bearing to support the outboard end of the gearbox shafts. There has been discussion of this in other threads, and the advice generally seems to be that if you are not using an outboard support bearing, then make sure you mount the sprocket as close to the gearbox as possible to minimize the cantilevered load on the gearbox shaft. (You can also cut off the unused shaft to save weight, in that case.)
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They have it designed so their pulleys (they are using a belt drive rather than chain) are very close to their gearboxes. I still recommended not cantilevering the load, but I don't think it will be a very large problem for them.
The best part of the drive-train is the wheels, but I'll let them post the pictures.
