Hello, dear forum frequenters

I'm an amateur builder in need of your expertise.

I want to build a charriot that opens up into a stage, something like what is seen in The Imaginarium of Doctor Parnassus but smaller. I would like to join an itinerant street theater company next year and I will build a tricycle to pull this trailer around. The bike will be operated by two people pedaling and one person steering. I'm comfortable working with steel and bike parts, so no help required on that regard, but when it comes to the trailer...

I would like to make it as light as possible. I am thinking about using aluminum, a metal I've never worked with before. I know welding is out of the question, but I reckon bolts will make strong enough connections. The idea is to build a metal frame and then use the thinnest plywood, methacrylate and cardboard for the walls and ceiling, and thickest plywood for the floor. The size being 3m by 1.5m, 2.4m height.

I'm mostly worried about the flooring. The idea is to have two surfaces to walk on, the floor of the trailer and a wall that will be pulled down when the trailer is stationary. I'll just use big ass hinges and three to four unfolding legs for the later one.

Here is my question? What size of aluminum tube would you use and how much can I space them? I assume round tubing beats square tubing, but I might be wrong. And the maximum spacing is affected by the thickness of the plywood sheets, which I'm also ignorant about.

Any help regarding this questions will be mostly appreciated,

Looking forward to start working on this foolish dream and sharing the process with you

http://"https://www.youtube.com/embe...u9f8?start=91" Sorry I couldn't find it in english


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