Here's a couple...
Sorry, guys. I moved them to a different album and forgot to re-link. Here they are:
I live in an apartment and have a one-car garage. The dogs hate being away from me, so I block them in with the tubs and table, haha. Then they can be out there while I work. But I have to toss them back inside when I weld.
That's Beau helping me. Ruff is behind the rear wheel and to the right.
So, anyway, here it is so far. It's all 1.00" and 0.50" square tube except for a bit of flat to make the bike axle mount. The 1.00" tube running lengthwise in the first pic will be the main spar. In the second pic is the 0.50" frame that will sit above the spar a bit and I'll run angled braces back to the spar.
Bike axle is 7/16"
Front pivot is 3/8"
Trailer axle will be 3/8" or 7/16", depending on what I use to fit the wheel hub.
All pivots are bushed with graphite-impregnated bronze bushings
All axles are simple all-thread with a nut welded on one end