| http://www.w3.org/ns/prov#value | - Go to Home Depot, buy some aluminum sheet, drill holes in it, and have fun.More seriously, the cheapest chassis is the one you build yourself from raw materials: HDPE is nice, as is extruded PVC sheet and various other low-cost plastics (polycarbonate is nice in that most woodworking tools will work on it, but it is a pain to cut without some sort of power tool).
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