Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3140628.
This is a revision of my Right Hand X Axis extruder mounts for the Zonestar P802QR2 (https://www.thingiverse.com/thing:3065295) that includes a Tensioner assembly for the X Axis drive belt.
The Thing utilizes the existing bearing and bolt assembly for the belt drive but you will require additional 2 x M3 Nyloc nuts and 2 x 20 mm long M3 bolts ( I used 2 of the spare bolts supplied with the original kit).
I have included some 0.5mm runners to all sides of the tensioner block. These can be trimmed dependent on printer tolerance to provide a nice snug fit to components.
All parts can be printed without support but may require some cleaning up where there is bridging. I used a 30% infill with 4 perimeters to make the print resilient.
MAKE SURE THE TENSIONER BOLTS DO NOT FOWL\RESTRICT THE DRIVE PULLY\BELT PRIOR TO ASSEMBLY\USE.
UPDATE: 14\10\18 Uploaded new version of Tensioner Block which due to its orientation did not appear correctly in the slicer (although still prints OK).