Page 47 - 15 Dangerously Mad Projects for the Evil Genius

28 15 Dangerously Mad Projects for the Evil Genius

Figure 3-3 Leaf blower, top view

Figure 3-4 Leaf blower, bottom view

blower is a different shape, but with a very similar the balls. The container is hinged so that to fire the
basic design. gun, balls are simply tipped into the leaf blower.

Familiarize yourself with the design of your leaf As we mentioned earlier, the leaf blower is
blower and compare it with the author’s. Turn it actually held upside down to allow the balls to be
on, and if it has different settings, find the setting tipped into the inlet, where they fall into the path
for maximum blowing power out of the nozzle. of the air jet, which whisks them into the barrels
Also, look through it to see the path the air takes. and fires them out the other end.
You can also try dropping a ping-pong ball into it The barrels are wedged into place with blocks
at the air-intake while it is running. Do not put of expanded polystyrene packing material that has
your fingers inside the blower. This should be fired been cut to the right size. This also has the effect
out, albeit not very fast or accurately. Work out of blocking most of the air that would otherwise
where the balls will need to be introduced, as this flow around the pipes, thus maximizing the flow
will determine where you attach the magazine. through the pipes.

Your leaf blower may have a round rather than
The following sections take you through the
rectangular nozzle. If this is the case, you can
construction step by step.
either fit the three waste pipe barrels in a row, as
described in these instructions (and perhaps adapt
Step 1. Cut the Barrels
things by fitting them in a triangular arrangement),
or use just two barrels. The PVC pipe can be easily cut with a hacksaw.

Figure 3-5 shows the design of the project. This You will get a cleaner, more perpendicular edge if
is a simple design; the leaf blower does not need a you use a large sturdy hacksaw, but if none is
lot of modification. Essentially, it just needs barrels available, then a small hobby hacksaw will work
to direct the balls accurately and a container for fine. They should be cut to a length where one end