Universal Semi-Direct extruder fixture

thingiverse

Tired of constantly tweaking your Bowden setup like I am? This setup promises to deliver the same speed or even surpass it without cluttering up your carriage and producing top-notch printing quality. I'm working with a custom Ultimaker-style printer, which makes installation incredibly straightforward. Any extruder can be easily mounted using this holder as long as you're employing NEMA 17 stepper motors. The Solidworks file is included for reference. I've been enjoying great results using a 3-inch Bowden tube between the extruder and hotend. My retraction speed clocks in at 1.70mm, though it's not yet optimized to perfection. With this setup, I've managed to print for an impressive 90 hours without encountering any issues whatsoever. The dancing arm only moves along the Z-axis (up and down) due to gravity, which eliminates any mess added to the carriage. Excuse my printer's unpolished state – it's still a work in progress, with no cable management yet (there are plenty of tie-wraps holding things together). I used whatever materials were available at hand, including 15x15 extrusion to hold the extruder, 20x20 aluminum extrusion, two 20mm springs, M4 threaded balls with a 10mm diameter, one 608 bearing, and an 8mm shaft. For reference, check out this YouTube video: https://www.youtube.com/watch?v=dcbxGUUnVxw Print settings used include: Printer: Ultimaker-style Rafts: No Supports: Doesn't Matter Resolution: 0.2 Infill: 60%