CR-10S, S4, S5 Dual Z Threaded Rod Sync

The CR-10S (all sizes) have a design flaw. When you power down, the steppers lose power and the left and right threaded rods can move and affect the squareness of the gantry. This is especially a problem on the S5 with its large bed. You can take a few minutes to realign them before every print, but I wanted a way to link the two rods so they would never become different heights. This is a simple, inexpensive and very effective method that I thought I would share with the community.

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