DIY Chassis Dolly

[IamScotticus]

I have decided to build my frame stands, basing the design after the Allstar 10625, but more over built. 

I the commonly available materials are Uni/Super strut channel tubing, and hole punched 1-1/8 &  1-1/4 square tube at Depot.

 

The Unistrut  I can bolt together but would have to hunt for the angle braces.

The square hole punched tube will be welded and welder can fab the braces.

The hole punched tube will slide together so I can have some telescoping.  I'm not certain this punched tube is adequate???

 

What say the gallery?

[MV8]

I don't think it will be overbuilt using unistrut. The allstar stand weighs over 50 lbs. It looks like .125" wall 1.75" tube with 1/2" pins for a 2000 lb capacity. Unistrut is 0.780" wall and smaller in cross section with 3/8" holes. Definitely need thicker wall tube than unistrut for the lower tube if building the same way as allstar. Also, welding galvanized metal produces toxic zinc oxide fumes that if inhaled, can make the welder very sick. The casters should be capable of handling 250 lbs each. It adds up quick given today's inflation. I'd use black pipe for most of it with 1/2 rod pins with hairpins and drill adjustment holes as needed.

[IamScotticus]

Yea, I was concerned about the zinc.

Thanks.

[Christopher smith]

That concern about zinc reminded me that welders working on stainless and other chrome or nickel containing alloys (or plated tubes) may want to be sure of very good fume extraction/ventilation. Even grinding creates fine dust and, if oxidized, they may face some bad health even years later. Hexavalent chromium causes cancer and nickel allergy can be severe.

[coffee break]

The material should easily handle the vertical load. Rigidity of the joints is a requirement, using angle brackets and diagonal bracing to do so.