Today, we finished putting together the assembly with the parallel soft bungee cord (parallel to the chain). See 2013.06.03 System Setup Diagram.png. Note that the bungee assembly that was previously inside the top bar (that the seat slides on) was taken out in order to make further adjustments easier. To do this, we secured the 2 ends of the bungees and chains and allowed the middle to hang loose. However, we didn't want the middle to be so loose such that it would drag on the floor. To prevent this, we flanked both sides of the bungees with pieces of cardboard. The cardboard pieces allowed enough room for movement, but not enough for the cords to slide through. See Figure 1.
Figure 1: Parallel soft bungee assembly, closeup.
Figure 2: Entire erg assembly as of Wed 5 June 2013.
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