Anet A8 X-belt Tensioner

This is a redesign of Brisemuth's excellent Anet A8 X-belt tensioner idea. I love that it does not require one to purchase a longer x-belt since it reaches through the pulley support and that it provides tension by pushing on the X-axis bearing rods which prevents it from squeezing the Z-bearing rods towards each-other.

Brisemuth's tensioner did not work for me because it did not leave enough of a gap for the pulley and belt so the belt could not move freely.

This design improves in two wa