I want to build an OA cart for a big O2 and acetylene bottle. The O2 is the
big one, and the acet is about half as high, but not the big fat one, but
about the diameter of the O2.

I have seen lots of carts. I want one that has large diameter wheels, and
the cylinders are at a slight tilt when parked. Where it takes minimal
leverage to tip and move. Anywhere I can get some dimensions or ideas about
this?

Maybe I'll shop around and just see how much it is to buy one, as it may be
cheaper and easier.

Steve