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Unread 14-05-2015, 16:51
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Jack S. Jack S. is offline
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Re: pic: Manually machinable one-speed gearbox

Quote:
Originally Posted by String View Post
Yeah, I know. But 118 specifies that there's not enough room for a center drop in 1/8" wall tube. I was wondering if anybody had done a true drop center in .1" wall tube. Also, on a related note, in a 6WD with the outer wheels shaved down, how does the different linear speed of the wheels affect the drive?
While I can't say for certain, from what I've seen I don't think this change in linear speed has much of an effect on the overall drive. 118's 2013 and 2014 drives performed exceptionally well even with the different linear speeds. That being said, they were both 8WD, and therefore the wheels running a different fps spent a significant amount of time not contacting the ground. I feel like the different speeds could be much more noticeable in a 6WD setup.

If you wanted to run a 6WD Texas Tube without moving your bearing holes off of the rail's center line, you could try running your center wheel on an 18t sprocket and your outer wheels on 17t sprockets inside 0.1" wall 2"x1". If I've run the numbers correctly, you should be able to put 4" wheels in the center and shaved down 3.8" wheels on the outer shafts to achieve equal linear speeds. However, that would only result in a 0.1" drop.
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