Humble spool holder (MINI remix)

prusaprinters

<p>The box I'm using for a filament dry box does not have any extra height, so I took the basic dimensions of the Prusa Mini spool holder and lowered it as far I I could. &nbsp;I also added mounting blocks to (copies of) the rails to allow the spool holder to be attached to the bottom of the box.</p><p>These rails are backwards compatible with the Prusa Mini spool holder base (although there will be a gap if you don't remove the stick-on feet Prusa provides with their spool holder), if you don't care about the reduced height and just want to attach your spool holder down.</p><p>Assembly is with m3 cap head screws and nuts. &nbsp;You will need 4 mm long m3 cap head screws for the rail locking screws, any longer and they will foul the spool. &nbsp;I used button head screws through the bottom of the box so that the screw heads do not protrude below the ridges on the box bottom. &nbsp;The bearings are the standard 608 skateboard bearings, same as the MINI spool holder.</p><p>The box I'm using is a <a href="https://www.target.com/p/ezy-storage-19qt-ip67-waterproof-storage-box/-/A-81967133">Ezy Storage 19qt IP67 Waterproof Storage Box</a> from Target. &nbsp;It will fit two 200 mm spools. &nbsp;See my <a href="https://www.printables.com/model/171874-mounting-plates-for-pg7-fittings-on-dry-box">PG7 Mounting Plates </a>for additional parts to use this box. &nbsp;Just use longer screws through the middle four side plates to make the double spool configuration shown in the picture.</p><p>Printing Info:</p><p>I used PETG, .4 mm nozzle, .2 mm layers and 25% infill with no supports.</p><p>Print four sides and two rails for each holder, that is, print the gcode file I've provided twice. &nbsp;Note that the rail is printed upside down.</p><p>&nbsp;</p>