Looks beefy! When I built a custom rig to hold my OA tanks it magically produced
a local ad selling a pair of bigger owner tanks for $75. I couldn't resist,
snapped up the bigger tanks, and then realized I'd not designed my setup to hold
anything but my exact cylinders. Oh, well. Yours might have more room, can't
tell. I like the chain idea, it has worked well for me. I did it slightly
differently, see http://www.tinyisland.com/images/chainclamp.pdf for my concept.
The DeStaCo clamp idea is really easy to implement, wonder how spendy they were?

A buddy of mine is currently scrounging for a welding cart. I was thinking about
slicing off some 2" pieces of 10" pipe and welding some flat bar across a
diameter (one on either side of the pipe) and machining a central hole to admit
a hub which would then be welded in. This would make crude but strong steel
wheels from scrap 10" pipe.

When I get a little farther along with welding and learn to weld aluminum I may
modify an old aluminum hand truck to be an O/A cart. Much lighter and won't rust
without paint.

Grant

Pete Keillor wrote:

On excellent suggestions from the group, I replaced the straps with
chain. I used De-Sta-Co clamps to secure. It's quick and doesn't
allow any movement of the bottles once adjusted. I also added a
couple posts to store the bottle caps.

http://metalworking.com/DropBox/OACart03.jpg
http://metalworking.com/DropBox/OACart04.jpg
http://metalworking.com/DropBox/OACart05.jpg

Pete Keillor


A couple photos of the OA cart I just finished (other than paint).
It's too heavy but rolls well. About half the weight is the wheels.
They were cheap, but are cast iron and solid rubber. There are a
couple of half inch steel pads welded under the front edge of the
bottom plate. This keeps the cart resting on the tires and the pads,
which prevents rocking. It seems pretty stable.

I found a small toolbox at Ace and bolted it on.

http://metalworking.com/DropBox/OACart01.jpg
http://metalworking.com/DropBox/OACart02.jpg

Pete Keillor