I ordered and recieved my I-MIG 200 so I used it to build a welding cart.
I constructed this out of 1" square tubing, 16g.
The tank is an 80cf I bought cheap and is a good size for what I will be using this for.
The rear no flat tires are 10" in dia. and the front swivel castors are 5". I wanted it to roll good on rough terrain or rock driveways so I went large on the wheels.
I wanted to have rounded corners but I don't have a way to bend things....
This is what I did to round them......