X-Axis Belt Tensioner for Original Prusa i3 MK3

thingiverse

This is a custom-designed x-axis belt tensioner for the Prusa MK3 3D printer. The design builds upon mhoyt's original model found on Thingiverse, but offers enhanced tensioning capabilities of approximately 3mm. My personal experience with this tensioner resulted in a significant improvement, reducing my belt's status from 289 to 276. Notably, this x-axis belt tensioner was specifically created for the original R1 x-end-motor part. However, it may not be compatible with the newer R2+ part featuring an integrated tensioner. To confirm its compatibility, further testing is required. To facilitate smooth printing, the model incorporates sacrificial bridges, represented by the grey faces. These features help to minimize or eliminate the need for supports during the printing process.