MMU2S Filament Buffer with PC4-M10 Fittings

prusaprinters

<p>I've made a remix of the MMU2S Filament Buffer from <a href="https://www.prusaprinters.org/social/9003-foppemoa/prints">Foppemoa</a>.</p><p>The buffer is nice, but the PTFE tube connection isn't the best, so i added holes for some PC4-M10 fittings to hold the PTFE tubes securely in the buffer base.</p><p>I've also changed the angle of the tubes on the entry-side, because with the original base, sometimes the filament was pushing straight through it and unwind the spool.</p><p>The last modification is a new end stop for the lid, so it now only open to 155° and don't fall on the PTFE fittings on the exit-side. But now you have to screw on your enclosure or shelf. The holes for the screws are in the same position as <a href="https://www.prusaprinters.org/social/21062-imike/prints">iMike</a> remix.</p><p>Other changes: the back part of bottom_right is now 5mm longer than the original, with the PC4-M10 fittings you might need more space anyway.</p><p>I <strong>highly recommend</strong> to use 4mm PTFE tubes with an <strong>inner diameter of 3mm</strong> and not 2mm or smaller. You need to push the tubes carefully inside till the upper edge on the inside.</p>