M6 Funnel Bolt - MK8 Extruder Filament Guide

thingiverse

Just noticed the scaling may have been off on either one or both of the 4 and 7 mm bolt STL files. Please get the v03 models if you downloaded the v02 STLs instead. I also added an STL with both the 4 and 7 mm bolts for those who want to print both at once (for any reason). An M6 bolt with a funnel-shaped hole in it was designed as a sort of filament tip guide for Anycubic's Metal MK8 Extruder Kit. It makes threading filament into my printer's bowden tube much less of a struggle. Note that the photo is of the "right-hand" version of the kit. If you are still using the stock extruder, try my M6 Nut Funnel Cover - Exruder Filament Guide instead. Notes There are 2 versions available, one with 4mm of thread and one with 7mm of thread. Installing the 7mm version requires removing the extruder base plate from the top of the printer (if installed). I made the 4mm version because I had already installed the base plate and didn't want to remove it to install the guide bolt. Installing the 4mm bolt without removing the plate is a little tricky, but it can be done. This was designed for use with 1.75mm filaments, and it will not work with 2.5 or 3 mm filaments (the hole diameter is close to 2.55mm). It should be printable without supports, and I recommend using a small layer height to preserve the threads (I used 0.1mm).