Today I started on the chassis. I’m going with aluminum, and trying my hand at welding it together. I’ve been practicing aluminum TIG for a few days now, but still just getting the hang of it. I could really use tips, especially on making fillet welds.
Here’s a rough CAD model, mostly used to figure out what the box tube frame should look like. The grey sketch lines are where my legs should go, so I probably won’t be using the steering wheel shown in the CAD.

close up of the support block in the "arm". The end of this will soon have a C-bracket that will hold the pivot for steering the front wheels.
more to come tomorrow.
wondurfull information thanks