Wanhao i3 X-Axis Belt Tensioner with offset

This is based on the Wanhao i3 X-Axis Belt Tensioner (http://www.thingiverse.com/thing:1206926) designed by Heathicus (http://www.thingiverse.com/Heathicus)

I'm running some IGUS style printed PLA bushings (http://www.thingiverse.com/thing:24990) in a SCS8UU block (http://www.thingiverse.com/thing:1172838)

The original design had my bottom belt of centre - this would then cause the belt to rub against the pulley when the carriage got close to the edge on the opposite side to the endstop.