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Re: 4607 Butterslide Drivetrain
That's an interesting concept.
I too agree that the stress on the pivoting drive shaft will be high and that might cause a significant amount of flex.
Some ideas to reduce the possible bending on the shaft:
1. Use ThunderHex rod for the shaft.
2. Support the traction wheel on both sides using a wider aluminum extrusion and cutting a slot for the wheel. Locate the wheel closer to the outside (gears on the inside).
3. Like others have mentioned, have the omni wheels do the pivoting.
Dave
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