Yet Another Adjustable Spool Holder for Enclosure

thingiverse

This is a filament holder (or roller) that mounts directly to the top of a printer enclosure. It can handle a wide range of spool widths, from 45mm to 155mm, and diameters, from 120mm to 320mm. The center remains in place throughout all adjustments. I designed it because the included spool holder with the Ikea LACK Table enclosure from Prusa Research is fixed at a specific width and I didn't like the remixed versions that made it adjustable. The holder sits on a flat surface that extends to the gear arms' ends. The weight of the spool is directly supported under the roller brackets, not by the base. Each roller bracket has two seats for the roller axles. Place the roller axles in the outer seats to get a wider support base for the spool. Use the inner seats to accommodate spools with small diameters. When uploading, I realized that I didn't design a filament guide through the enclosure top. I like one of these, https://www.thingiverse.com/thing:2114888, and this other one, https://www.thingiverse.com/thing:2740467, so I'm not going to design a new one. _Edit 07/14/2018:_ Some people reported that the rotating joint between the link arm and the base is too loose. I have uploaded two alternate STL files for the link arms with tighter tolerances for the link/base joint and for the link/peg joint. The original link arm has a 0.10mm modeled fit gap (radius) for the base joint and a 0.18mm modeled fit gap (radius) for the peg joint. The first variant, alt_link_arm_07_10.stl, has a 0.07mm fit for the base joint and a 0.10mm fit for the peg joint. The second variant, alt_link_arm_04_07.stl, has a 0.04mm fit for the base joint and a 0.07mm fit for the peg joint. I can easily post other variants if needed. Don't forget to enable support material for the link arms. (I also recommend flipping these alternate link arms over from the position in the STL file. See the original link arm STL for the preferred orientation on the print bed.) If you make this thing, I would appreciate feedback on how well the joints work and if one of the alternate link arms worked better for you. _Edit 10/15/2019:_ I deleted my STL file for a roller and axel around a 608 bearing. Please refer to this thing for a better bearing roller solution: https://www.thingiverse.com/thing:3791583 by https://www.thingiverse.com/munzli.