Anet A6 X-axis belt tensioner - alternate tensioner block

This upgrade (or any x-tensioner upgrade), together with a y-tensioner upgrade and toothed idler pulley (in both x and y) are three of the most important upgrades to your Anet 3d printer. You will see an improvement in print quality (see photo attached) once you get the tension of your belt right in both axes.

The following features are added to the original part:

The part can be printed without any support
Enlarge pulley compartment to fit larger metal idler pulley
Add spacer around pu