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Originally Posted by DampRobot
Wow, that's surprisingly little force for such a great launch. We're hitting 220 pounds at full pullback in our shooter, and we're still not getting much distance as we want.
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We're pretty happy with the efficiency. I cannot imagine it is the only reason, but our rack and pinion cocking system completely disengages the cocking pinion from the rack on the plunger rod - the pinion has missing teeth by design - so there is no drag on the plunger rod from a winch when it fires forward.
The igus linear bearings and aluminum shaft are also (literally) quite slick.
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Any reason for the tiny little pusher plate? Or are you going to replace this with something else?
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Honestly, the shape/size was kinda arbitrary - we just wanted something larger than the diameter of the 1" plunger rod to start. The end of the rod is threaded so we can put in larger-diameter endcaps if we want and examine the effect on distance (and more likely, shot consistency).