So the wheel conundrum is solved, I think. I've ordered some 146mm sack barrow wheels but they have a 8mm bore on them, which I'll bore to 10mm. What I'll do then is melt the original motor nuts into the bore, glue that in, refit the nut back into the shaft with some threadlock. I'll also then get a plate of HDPE and bolt it through the wheel to act as a nut plate which hopefully will keep the wheel on the shaft.
Does that work/robust enough for robots of the Heavyweight category... or the Middleweight category?
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