v1.4 Anycubic i3 Mega X Tensioner

UPDATE 5: If the performance of this part doesn't satisfy you, have a look at the second, stronger and stiffer 2.0 version of this design. You'll find it right here https://www.thingiverse.com/thing:3336226

UPDATE 4: After installing a titan extruder on my i3 Mega (https://bit.ly/2EqSIBV), the wheel of the tensioner was too close to the extruder and no longer accessible. I have added a spacer that adds a little bit of distance in between the tensioner wheel and the extruder. To use it you nee