Using a Solenoid in a Pneumatic Cannon

[wiiking123]

Originally Posted by rahilm

Won't really come close (I know these calculations are for incompressible fluids generally, but for these purposes, they will work):

If we assume 120psi (827370.84 Pa)
pressure = (.5)(density)(velocity)^2
velocity = sqrt((pressure)/((0.5)(density)))
velocity = sqrt((827370.84)/((0.5)(1.225)))
velocity = 1162 m/s

With the tube being used, we only have a 1/8" diameter, which is 0.003175m
air flow = area * velocity
air flow = (diameter/2)^2 * velocity
air flow = 0.003 m^3/s

mass flow = 0.0036 kg/s

Basically, you're going to have 3.6g of air coming out every second, which is not even close to enough to move a t-shirt (and this is assuming 100% efficiency)

If you are working on a low budget, but have a robot chassis lying around, message me and I could put together a bill of materials on our t-shirt shooter. (Cost about $250 all parts from Home Depot)

A BoM would be greatly appreciated if you could put it together. Since we are a rookie team, we really are going into pneumatics for the first time. One of our mentors knows some, but any tips would be greatly appreciated.