Discover the entire process of building a robust, custom hand-cranked metal bending machine, from selecting raw materials to delivering precise U-shape bends. This in-depth metalworking tutorial ...
GEARS ABRADE, pistons crack, pumps clog. If engineers had their way, machines would have no moving parts at all. Alas, a sedentary lump of metal would be a paperweight, rather than a useful machine.
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