Just made one, stuck a paper clip in the middle. Found the front gear was the hardest to keep on since its such a close fit. So I put some rubber cement in the gear and put the front gear on and let it dry. Then I inserted my paper clip and put the rear end on. Under no load it looks good, no loose gear and no twisting. We'll see how it holds up to some fresh batteries and soon Liths :P Anyone know how to tell if the shaft is bending?
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