I was asked to
build a small
snow drum for a window cutout a few years ago. Once again
Sonotube came to the rescue. A 4' section with two plywood round ends. Run a threaded steel bar down the center and leave about 6'' atm least stiking out each end.
Bolt the
unit inside and out with a washer and locking style
nut so it won't work loose. Don't worry you can reach inside because you''re going to cut a rectangular hole towards the center of the tube for loading it. Afew small hinges and hook eyes with rubber bands make a secure latch. A trip to the local "Ax Man surplus provided a small motor and small bike gears for cheap. The support is simply a box around it of 2x2s and plywood ends to hold surplus bolt-on bearings. The
base is similar,a rectangular box but hinged to fold for storage. Mount a 2x2 upright at each end for height,when you have what you need cut them in half. Then cut lengths of
PVC to sleeve them,you can alter height easily or just suspend the upper
unit. The amount of snow released depends on speed of your motor and size and number of holes in your tube. The use of the locking nuts is important to keep the drum in
line if it's not going to wander or work loose after running during a series of performances.We
throw a sheet inside the
base and refill about every third show.