Originally Posted by
tyrion
I'd make something out of scrap plastic (e.g. the jug below) before trying to use a rotor. Might need 2 or 3 layers of plastic, depending on thickness. Zip tie them to the spokes.
this and setting the high/low correctly would be the best bet IMHO for the OP considering a) shipping logistics b) unsuitability of a disc rotor for the task
even easier would be finding a flat plastic lid of suitable thickness
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