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Re: What types of metal do you use for your robot in general?
We use an aluminum extrusion called Item. We typically make our frames out of the 20 mm x 20 mm and 20 mm x 40 mm options. It is very convenient for making quick adjustments with T-nuts without drilling lots of new holes every time we want to move something. I've never experienced any issues with it bending or losing its structure.
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