nope, the rollers don't move at all ... I'm using motor shield, event when I crank up the speed, the shaft just spins, and the pollers don't move. It seems like it takes much more force to spin the rollers on the tube than the shaft can tolerate before it just spins. Is it possible you guys got a bad batch of these things?@stocke - The roller head should be a friction fit on the shaft. Do the rollers move at all when the motor runs?
Can you tell me if this pump will run at 15V?
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