Silver's omnivorous fillament spool holder: rails and T-mount.

prusaprinters

<p>I decided to finally upgrade the fillament spool compartment of my LACK ensclosure, and i wanted to have as universal system as possible.</p><p>Asside from the great <a href="https://www.printables.com/cs/model/159847-wider-and-narrower-remix-spool-holder%2Fcomments"><strong>Wider and narrower remix spool holder</strong></a><strong>, (</strong>that is of course a remix of a remix, coming back to <a href="https://www.printables.com/cs/social/39615-copanko"><strong>Copanko</strong></a>) I also wanted an option for spools that need to be mounted by the central tube - for example those with paper sideplates, or basically any spool that is near empty and thus light/narrow enough to get pulled of the rollers by the extruder movement (it actually happened to me in one case and resulted in partially ruined print.)</p><p>The rails nicely stabilize the adjustable roller holders, while allowing movement along the X-axis, so you can position a spool to the nice center, while having another one ready just next to it - for that, I also <a href="https://www.printables.com/cs/model/245999-reversed-screw-for-wider-and-narrower-remix-spool-">reversed the adjustment screw</a>.<br>Works best with the “slot” type fillament guide, I especially designed it for <a href="https://www.printables.com/cs/model/242844-doubled-improved-mmu-filament-guide-for-lack-ikea-">this</a>, which is a remix of a <a href="https://www.printables.com/cs/model/5121-improved-mmu-filament-guide-for-lack-ikea-table">design from ACE Krystal</a>.</p><p>The “centre mount” part uses the injection-molded T-shaped holder that came with my MK3+ (fall 2021), I assume this is still the OEM part coming with new printers. You'll need some 5mm axis pin (I used a piece of threaded rod, an M5x50 screw would be the best, however).<br>When the original T-holder is not in use, it simply folds away to the back - you can use up to six &nbsp;12x5x2mm magnets to give some fixation to both positions.<br><br>You can also use just just the rails without the OEM T-holder option: print two of the “front” rails, and take care about orientation - the “feet” of the adjustable holder are not symmetrical and i designed the rail to fit them.</p><p>&nbsp;</p>