Bondtech BMG Extended Filament Guide
Description
A remix of the official Bondtech filament guide that mounts inside the Bondtech BMG extruder. The official filament guide is for sale, with an STL for free download, on the Bondtech website (1). My design is shown next to the official version in one of the photos. It still mounts within the extruder, but extends the filament entry out beyond the cable chain (2) and below the custom cable mount I designed for my Ender 3 Pro (3). With the side mount spool holder (4) and official Bondtech mount that reorients the stepper motor (5) it provides a good filament entry angle, protects the filament from snagging on the cable chain, and protects the cable chain from abrasion by filament. I made variants with the bore the same size as the original (2.2 mm) as well as slightly larger (2.3 mm and 2.4 mm), to account for the horizontal expansion characteristics of various printers. 1. <a href="https://www.bondtech.se/en/product/filament-guides/">Bondtech Filament Guide</a> 2. <a href="https://www.thingiverse.com/thing:2920060">Ender 3 Cable Chain</a> 3. <a href="https://www.thingiverse.com/thing:4510910">Ender 3 Cable Chain Mount for Bondtech Extruder</a> 4. <a href="https://www.thingiverse.com/thing:3757724">Ender 3 Pro Side Mounted Spool Holder</a> 5. <a href="https://www.bondtech.se/en/product/creality-cr-10-kit/">Bondtech Kit with Mount for Ender 3</a>
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