Make a Rotating Frame for a Solar Furnace

Assembling the base, the gimbal frame and the mirror frame for the solar furnace.

056 solar furnace - brake photo3.jpg
Make your first two bends, then line up your scribe mark with the hold-down bar's beveled edge for the third. Now just snug down the hex nuts and lift up the handles. Your final bend is complete!
MOTHER EARTH NEWS STAFF