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Finally, the initial mechanism pin joints were all comprised of the 6mm x 24mm slotted pins, and held together by 6mm o-rings.
Due to the short pin lengths, there was little room to work with between adjoined links. The o-rings also did not adequately hold most of the joints together, so links had a tendency to pop off the joint during operation. Additionally, the short pins left little clearance above the ground, so the joints would catch the edges of the ground board and slider slot.
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