Building the jig. Took forever, but resulted in pretty good alignment, so I'm pretty happy with it.
Suspension pivot - it's made of mild steel from the scrap bin, I think 1/8". Hopefully it'll be strong enough...
Still have to create a bracket for attaching the upper arms of the triangle. I'll be fairly simple - vertical plate w/ struts on the sides. Nut welded to it. It's designed for elastomer suspension, but I'm hoping I can just jam a spring in there. We'll see.
It even folds! Not easily - I'll have to unbolt the suspension and the (not yet built) front end. Enough to get the thing into a large suitcase, though. (I hope...)
Steer tube with caps (washers ground to fit ends of tube, M8 nuts welded to them.
Look ma, no taps!
Steer tube, capped, with bolts in top and bottom.
What wheel? That's a jig!
Some spare wire holds things together while I tack braze.
Getting ready to tack the front and back together.
Hey, I might get decent frame alignment on this one!
Disk brake mount. Sheet metal + V-brake braze-ons.
Somewhere in Oregon...
Somewhere else in Oregon! That's the Willamette.
Back in Davis! No more load - yay!
Seat mount. Aluminum angle stock, angle brackets, and hose clamps. Plus a bunch of M5 bolts. All courtesy of some hardware store in Portland.
The seat back is an Aluminum backpack frame. The bottom is EMT conduit.
More hose clamps!
Next up: tailbox!
The disc brake worked out pretty well.
It's a BICYCLE!
Raw materials for the trike backend.
Cutting a dropout from scrap metal.
Completed Python Trike.
The riding position is quite comfortable, though it's pretty laid back. Photo taken at Bike Forth, our friendly neighborhood bike collective.
Wood platform for carrying stuff. Great for hauling a crockpot-full of stew to potlucks.
Hose clamps! As always, a convenient semi-temporary attachment system. I might change this before I try touring on it. That, or carry lots of spare hose clamps.
More hose clamps. Unfortunately, this setup makes the suspension stop working.
The ride is pretty nice, and it's much easier for others to ride it. I'm not sure yet if practice on the trike transfers to the bike version.
Tilting trike! This is the trike backend with a couple of rod-end bearings to let it pivot.
Rod-end bearing taken from an automotive steering linkage, courtesy of a pick'n'pull yard in Woodland.
Two rod-ends in line constrains the pivoting. I'm not sure how strong my attachments will be, but they haven't broken yet.
Looks broken when parked. It rides like a (python) bike, but in this incarnation doesn't have any of the advantages of a trike. A different design could offer a trike's cargo bed and stability without making crowned roads so annoying.