Thread: Drum shooter?
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Unread 12-01-2017, 20:18
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Re: Drum shooter?

Quote:
Originally Posted by SenorZ View Post
I'd love to see a continuous stream of balls flying out of a drum!

Consider the power consumption. The balls are pretty light, but trying to pull several up from the bottom of your hopper with enough speed to propel them 5+ feet in the air, all using the same mechanism is going to be challenging.
Okay, 74g ball. Call it 8 m/s muzzle velocity. Let's assume rolling without slipping out of the shooter, we'll call it a ring so I don't have to look up inertia of a wiffle ball. So 1/2mv^2+1/2mr^2(v/r)^2. So r cancels and mv^2. Each shot has about 5j. Yes inefficiencies and all that. Say 10% efficiency, so 50j per shot. A properly geared CIM would put out 334W, so 6.5 shots per second without slowing. So with those assumptions, a 2 CIM drum shooter could put out 13 shots per second without slowing.
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