How to Build a Sand Blaster
For quick removal of paint and
grease from metal surfaces, you
can't beat a sand-blast machine.
Ever try to clean the paint off a motorcycle
wheel? Or, for that matter, any other
metal object? Well, if you have occasion
to do such work, you will find a small
sand-blast machine worth its weight in
If you have a handy source of sand and
a reasonably good supply of compressed
air, the rest is simple.
A sand blaster is merely a tank that will
safely withstand the pressure of the air
supply. It has provisions for pouring sand
into the top and allowing it to trickle out
the bottom, where it is entrained in a
stream of air.
It is necessary that the tank
be pressurized to prevent the air that flows
to the nozzle from blowing up through the
sand supply instead.
The machine illustrated was constructed
of a 14-in. length of 6-in. pipe with 1/4-in.
plate for the ends. The only part of the
machine that cannot be made with hand
tools is the filler hole in the top plate. This
hole must be made to properly fit whatever
object is used as a stopper.
How to Make a Sand Blaster