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Step 2Cutting the plywood
Again, sorry I don't have step-by-step pictures from when I made it, but refer to the drawing of the plywood layout during these instructions. Keep in mind one thing---everything is symmetric about the center of the sheet.
1) Make the long diagonal cut all the way through the sheet from a point 2 feet from the corner along one long side to a point 2 feet from the opposite corner along the other long side. (it's the long straight cut diagonally side-to-side in the drawing) Use a circular saw with a long straightedge clamped into place, if you have such. The straighter, the better.
2) If you have a long enough cutting blade for your jigsaw, clamp the two pieces together, lining up all the sides (rotate the top cut piece 180 degrees to line up with bottom piece)
3) Using a pencil on a non-stretchy 12" string and anchoring the string at point "A" in the diagram, draw an arc from the short edge of the sheet around through about 120 degrees. Point "A" is 18" from the (previously) long side of the sheet, 12" from the end. (see drawing)
4) Lengthening the string to 18", draw an arc centered at point "B" in the diagram from the edge you just cut around until it meets the other arc centered on point "A". Point B is 6" from the shortest edge of the quadrilateral you're left with after the diagonal cut, and on the cut diagonal edge (actually 30" from the end of the sheet). (see drawing)
5) Cut along the long curved line you just drew.
6) Take the pieces left over and cut a 12"x30" shape and a 12"x12" right triangle shape from them, in the manner shown on the diagram, outlined in orange and blue respectively . These will form the corner support stand.
1) Make the long diagonal cut all the way through the sheet from a point 2 feet from the corner along one long side to a point 2 feet from the opposite corner along the other long side. (it's the long straight cut diagonally side-to-side in the drawing) Use a circular saw with a long straightedge clamped into place, if you have such. The straighter, the better.
2) If you have a long enough cutting blade for your jigsaw, clamp the two pieces together, lining up all the sides (rotate the top cut piece 180 degrees to line up with bottom piece)
3) Using a pencil on a non-stretchy 12" string and anchoring the string at point "A" in the diagram, draw an arc from the short edge of the sheet around through about 120 degrees. Point "A" is 18" from the (previously) long side of the sheet, 12" from the end. (see drawing)
4) Lengthening the string to 18", draw an arc centered at point "B" in the diagram from the edge you just cut around until it meets the other arc centered on point "A". Point B is 6" from the shortest edge of the quadrilateral you're left with after the diagonal cut, and on the cut diagonal edge (actually 30" from the end of the sheet). (see drawing)
5) Cut along the long curved line you just drew.
6) Take the pieces left over and cut a 12"x30" shape and a 12"x12" right triangle shape from them, in the manner shown on the diagram, outlined in orange and blue respectively . These will form the corner support stand.
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