Friday, April 25, 2008
Friday, April 18, 2008
Wednesday, April 16, 2008
Saturday, April 12, 2008
Trailer Hitch / Tarp Pole
OK, I think I've got the hitch/pole figured out. Imagine a telescoping pole with three sailboat halyards installed inside.
Of note:
-it extends from 1.5m (hitch mode) to 2.5m (max tarp mode) in 10cm increments
-it rotates on one axis at the cart end and on three axes at the bike end, eliminating the jacknife feature of the first prototype (thanks Adrian!)
-in hitch mode, the hook can be tightened down, eliminating the rattle feature of the first prototype. the new design also eliminates the pin that held the hook in place, which was both awkward and sketchy.
-the rope is 1/4" braided nylon - strong enough to hold a large sailboat sail up.
-aluminum would be ideal, and hopefully not too expensive.
-each cart would need a 100mm x 100mm x 5mm plate installed in front of the rotating wheel pivot, and on top wherever poles might go.
-in pole mode, there are three equalized ropes - one for the tarp (with a hook that can accommodate several grommets when the tarp is folded) and two to attach to the ground (a block, a fence, a stake)
Whaddya think?










Friday, April 11, 2008
Thanks to Smokey and Dave at the Community Bicycle Network!
Thanks to Jack and Howard at Solway Metal Sales!
We'd like to thank Jack and Howard Bettel, brothers and co-owners of Solway Metal Sales, for their generous donations. Jack gave us a large quantity of 1-1/4" square-section steel for free, and Howard gave us access to his salvage yard and let us take anything we could find, also for free. These materials will be employed in our kitchen cart.
Thanks to George and Theresa at Canvas Specialty Company!
Wednesday, April 9, 2008
Tuesday, April 8, 2008
table cart
The table cart has been slightly altered. The new design features 'trainging wheels' on the corners of a box truss that is now the main support for the long tables (see image 2). These wheels will be on adjustable mounts that can be easily lowered to provide a stable table when deployed. The rear wheels will now be able to fully rotate to accommodate the different modes of travel. This will require that they are also equipped with a device to lock them into 'travel mode'.
















