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Grow a square watermelon

Step 5Fasten sides

Fasten sides
The edges of the inset sides will have to be trimmed the thickness of the poly you use so they can be inset and still keep the box square. Trimming these edges is probably the hardest step.

Drill pilot holes through edge of the left and right sheets into side sheets between them to accept the wood screws. Use 2 or more screws per joined edge. A piece of angle iron or aluminum can be used to beef up the corners if the polycarbonate you have is too thin. (If the poly is too thin, however, it may bulge.)
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Author:watermelon
I'm an Emu. As a young chick my parents use to feed me watermelon and I loved it so much everyone nick named me, you guessed it, watermelon. Now that I have moved away from home I rarely get to eat an...
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