OUR SAWMILL RUNS ON WOOD!
(Page 4 of 4)
November/December 1982
By the Mother Earth News editors
EDITOR'S NOTE: Information for ordering the back issues mentioned in this article can be found on page 48. Furthermore, we've produced an update on our wood-gas generator plans. A full set of the drawings and instructions is available—for $15 plus $1.00 shipping and handling—from Mother's Plans, P.O. Box A, Fast Flat Rock, North Carolina 28726. Folks who have already purchased the plans can receive the additional material, free of charge, by writing to Wood-Gas Update at the same address
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BUILD A BENDER ON A BUDGET
Our made-from-plumbing-scraps tube bender is an inexpensive—but effective—alternative to the real McCoy. We first cut the domed top from a 16"-diameter water heater and spot-welded it to the lid of a 55-gallon drum. Then we welded a 3/4" section—cut from the end of a 2" coupling—to the inside of a 1 " length of 3" close nipple . . . and fastened that assembly, in turn, to the center of the dome. A flange nut—sliced from a 3"-to-4" reducing bushing—was then threaded onto the 3" pipe, and a 1/4" X 1" X 1-1/2" flat metal stop was welded to the surface of the dome at a point about 1 inch from that pipe (or far enough away to allow the flange nut to turn freely). Finally, we took a 1/2" X 2" X 18" flat bar, tapered one end of it, and welded the other tip to one side of a 1-1/2" X 2" close nipple.
A 3/8" hole, drilled through this flat handle at a point 3 inches from the center of the nipple, accommodates a hardened rod or drift punch nicely . . . and the protruding end of that pin pushes the to-be-curved tube around the bend when it's clamped beneath the flange nut. A long pipe, slipped over the handle, can provide extra leverage for tough jobs, and—by filling the barrel with water—you can guarantee yourself a platform that'll be sure to stay put!
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