Ender 3 filament guide -- updated bolt pattern

thingiverse

I found borjang's original filament guide lacking in its design, with a bolt pattern distance of 17.9mm that failed to accommodate my Ender 3 due to the printer's extremely tight tolerances. To address this issue, I created an updated version that expands the bolt pattern to 19mm, which is the precise measurement I obtained from a newer Ender 3 model as of December 5th, 2018. Furthermore, I increased the tolerance around the lead screw guide by 0.5mm, bringing it to 10mm while maintaining the original 10.5mm allowance for added flexibility. Before printing borjang's or this revised model, I strongly recommend measuring from center to center on the bolts to determine whether you're closer to 18mm versus 19mm. In my opinion, future revisions of the filament guide should incorporate a slotted bolt pattern or relaxed tolerances to ensure compatibility with all Ender 3 models.