Another attempt using what I have to get started. Will update if it works. Attaching the rope to the corners stiffened it a lot. Steel pipes and scaffolding pipe t joints, U bolts and rope.
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the thing I would watch out for is the frame flexing upwards as tension is applied.
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Yeah, trying to figure out a simple frame that can pack on top of the car. Flexing will be a problem.
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take a look at
There is a thread here that I based it on (probably called lite frame or
similar)
it’s designed to go on top of a couple sawhorses that have slots in them to hold
a 2x4. If the arms flex, they can be stiffened by a piece of vertical plywood
along one of the edges. 2x4s are going to be stiffer than the pipe that it looks
like you used
I haven’t gotten around to building this yet, but the original poster did and
seemed pretty happy with it.
David Lang
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Thank you. will look at it. May try something else too. Right now just need a frame to get started.
also take a look at this one
make sure you set the thickness of the belt end properly before you print.
I’ve used this on a small scale (30 in square), it may need anchoring down to
keep it from flexing too much at a large scale (I built a 10’ sqare version for
a makerspace, but they didn’t finish assmebling their maslow yet)
the issue isn’t flexing up, but the square being distorted, but that’s simple
bracing to fix
This frame can be raised to make the belt Z offsets near zero for all belts
David Lang