Auto rewind air-tight spool holder

thingiverse

This is a holder for the auto rewind spool holder (https://www.thingiverse.com/thing:3781815) to put in the lock & lock airtight food containers. It prevents a filament mess while the MMU2S is rectracting and keeps your filament dry. The spools can be easily slided in when the box is open. The maximum spool width is 80mm (the standard Prusa spools). The source files in freecad are attached; to edit get freecad from https://www.freecadweb.org/. You will need following materials: 1x bolt DIN 933 - ISO 4017 M8x120mm 2x nuts DIN 934 - ISO 4032 M8 1x large washer DIN 9021 - ISO 7093-1 M8 2x 608 bearings 1x PC4-M10 pneumatic straight-through bowden fitting 1x Ptfe Tube inner diameter 2,5mm x outer diameter 4mm. (You can use the one shipped with the mmu2.) 1x Lock & Lock food container HPL836 PP 5,5L, 295 x 230 x 118 mm https://www.locknlock.com/eng/productbrand/index/24?tid=297 For the rewinding mechanism you should use PLA, the holder can also be printed in PETG. Some of the IntegratedRewinder* files needed to be printed several times, as indicated in the filename. Infill: Holder: 80% on the top 30% rest For assembly you need to screw in one of the springs with the inner flat side onto the bolt. Use a pliers and a wrench. If it doesn't stop from rotation you can add some hot glue.