Step 3:

Then I made a couple of prototype (I may make these from ¼ inch plywood later) side reflectors from cardboard.  These are approximately 16 inches by 20 inches. 

To attach the side reflectors you will need to make four hinges.  If you have a ready-made box, this is the only part that requires any real construction, but even so, it only took me about 20 minutes.  I made the hinges from eight little blocks of ¾ inch pine and 4 pieces of 5/16 inch dowel rod.  The little blocks are 2 ½” to 3” wide and 4 inches long.  I would make the reflector wing blocks a bit longer if I remake them as it would give more stability.  Drill holes ½ inch from the end of each block and insert dowels in the four that go on the reflector wings.  Glue/screw the female hinge blocks to the box.  If you staple (as opposed to gluing) the reflector male hinge blocks onto the reflectors, they can be reused when the cardboard gets wet or breaks.  When fastening the blocks to the wings leave plenty of slack so the wing does not bind in the primitive little hinge.

This is one of the simpler designs I have seen for a solar oven. I like it.
<p>Thank you so much.</p>
Just a quick question. When you put the plexiglass in place, would your cookinh vessel already be inside?
<p>Yes, the front is the only opening. Place the pot inside - lay the plexi on top and hold it in place with the little homemade clips.</p>
Thank you. It does make quite a nice cooker - very durable and it works very good.
I love it. A scouts dream, man.

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