CR-10s Pro Z-Sync Timing Belt Tensioner

The following mod may be necessary if your Belt tension is a little loose even after adjusting the top blocks outward as mine was. My design will apply equal tension on either side of the belt and therefore is easier and more accurate to setup than the original mod that I made or some of the other mods that I have come across that only apply tension on one side of the belt.

Thanks to RickSisco for the original "Simple CR-10S Pro Dual Z Sync Mod"
His modification adds 2 GT2 Pulley's and a 6m