One afternoon my wife and daughter were going to see the latest twilight movie and asked if I wanted to go. I politely declined. So after they had left to head to the theater I was getting a little bored so I decided to build a solar dehydrator.
I went down to the hardware store and picked up some materials
I cut some 2x4's down to 2 and 4 foot pieces
and screwed them together to form a framework
I had picked up some 2x2 sheets of aluminum and 2x4 sheets of luan. I test fitted the luan onto my frame
and screwed the aluminum onto the frame
I backed it with the piece of luan
I grabbed my 1 inch wood bit and drilled out vent holes in the top and bottom of the frame
I spray painted the whole thing flat black
I had picked up a 2x4 sheet of lexan. I laid it on top of the frame and pre-drilled mounting holes
and screwed it down to the frame
I set up my thermocouple to check the temp and it was climbing
I let it sit in the sun a little longer to see what I could get the temp to
and was able to get it to 123 after about 15 minutes
I grabbed some more 2x4's to make the frame for the dehydrating chamber
and stood the panel up into the frame to test the angle
and was able to get the temp up to 136
so I took the lexan panel off
and mounted some netting across the bottom holes to keep bugs out of the chamber
I used some soda cans I had and placed them into the chamber to increase surface area for creating heat
I used the scraps from my whole saw to block up the cans so they didn't interfere with air flow
and spray painted the whole thing black
I used the netting to hold the cans in place
I trimmed off the excess netting and ran a bead of silicone around the frame
and remounted the lexan, I overtightened the screw in the top right corner and cracked it, awesome
I continued building the frame for the chamber
and screwed down a scrap piece of luan for the base
I did another temp test
and was able to draw 152 degrees
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