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Old 01-15-09, 06:38 PM   #16
MetroMPG
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Join Date: Aug 2008
Location: 1000 Islands region, Ontario, Canada
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Default Here's how I made the bike stand

I wanted the uprights to contact the frame at two points on each side: lower chain stays, and the seat stays.

So I started by putting the bike on a sheet of paper and laying the boards against the bike to find the right width/angles at the base, which I traced out. As a result, the uprights have both negative toe-in and negative camber, to use some car terms:



To keep the thing from collapsing over sideways, I needed to buttress the uprights from the wide base. Triangulate! I checked to see how high I could attach the brace with some string (to make sure my heel cleared it when pedaling):



The chainstays rest in these cradles attached to the inside of the uprights:



Here's the finished stand, from above. Fore/aft stability is provided by that piece screwed to the base that runs underneath and inline with the tire. You can also really see the "toe-in" adjustment in this pic:



It's not quite as strong in the "fore / aft" plane - no triangulation. But it doesn't feel like it needs it. I can add something if need be (I'd like to watch someone else riding it).

And from the rear:



Whole thing took a couple of hours tops, to make, and seems to support the bike solidly with the rear tire about 2 cm off the base.

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