The first thing that I did when I started
actually fabricating parts was to build the sling pouch. Because
the projectile travels in a rotary motion instead of a linear
one (like a sling shot) the pouch needed to be able to cradle
the object through the arc.
I drew out the plans on the back of some
heavy vinyl. I made it two layers thick to add strength.
Because the intended projectiles were only going to be a
couple of pounds I believed that this would be enough. The
pouch laid out is almost two feet long and when folded over
should be large enough to hold an object the size of a bowling
ball easily. |
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Here is one side cut out and I am getting ready to do the
other. |
After some sewing (I hand stitched it
myself without a sewing machine because they didn't have
sewing machines back then and I don't know how to use a
sewing machine :-p) Notice the natural cradle created when
the sides are sewn together. |
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Because all of the force off the sling pouch will be concentrated
on the eyelets where the sling attaches I added grommets to
help prevent the pouch from ripping. |
And look at how neatly it folds over... |
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