Tools: Circular saw, jigsaw, drill,
various bits, phillips head adapter, hammer, paint brush, sewing machine.
On each of the sheets of plywood, measure
9 inches down from the top and 12 inches from the side and make a pencil
mark. This will mark the center of a 6 inch diameter hole to cut out
of the plywood. Use a compass or whatever else you can find to scribe
a circle on the plywood and then use a jigsaw to cut out the circle.
Cut two of the three 2 x 4's into 4 foot
lengths. Cut another one of the 2 x 4's into four 21" lengths.
This will give you eight pieces of 2 x 4: 4 - 48 " pieces and 4 -
Use those pieces to build two 48" x
24" rectangles using two 10 penny nails at each corner (note the side
view picture for orientation of the 2 x 4's.
Attach one sheet of plywood to each 2 x 4
frame, using drywall screws. I used four across the top and four
across the bottom evenly spaced. Down each side I put a screw about
every 12 inches. Counter-sink the screws slightly so that the bags
will not snag.
Now it's time for the detachable
legs. From the remaining 2 x 4, cut four pieces each 12 inches in
length. Given my lack of a protractor, I cannot tell you the exact
angle cut that is necessary on the top part of the leg. Reference the
side view to determine how to cut this angle. The critical measurement
is the resulting height of the high side of the platform. I used a box
to lift the high side to the correct height and then held the leg up to the
side, scribed a cut angle and then cut the leg.
The legs will be attached to the main
board using 4" carriage bolts. Here again, I used the box to lift
the high side to the correct height and then I drilled though the leg and
the side of the platform. Widening the holes in the legs will make
putting the legs on a bit easier.
Fasten the legs to the platform using
pairs of carriage bolts + washers + wingnuts. Detachable legs makes
for nicer storage.
I used two coats of paint. Using the
high gloss paint resulted in a surface that "slides" but is not so
slippery that it allows the bags to slide back down the platform.
To assemble the bags, take two of the
7" x 7" fabric squares and sew a quarter inch seam on three
sides. Fill each bag with 2.25 cups of corn. Sew the last open
side of the bag. Double stitch each bag on all four sides. The
bags do take a beating.