Drybox conversion for Rubbermaid FG7M7400CHILI tub

prusaprinters

<p>This is a set of parts to turn a Rubbermaid FG7M7400CHILI 21-Cup Food Container into a drybox to fit a normal 20-21 cm diameter spool, up to 7.5 cm wide.</p> <p>I made it to store my spool of Atomic Carbon Fibre Nuclear Nylon separately from the rest of my filament.</p> <p>The fitting pieces are designed with the intent that you'll use a PC4-M6 pneumatic fitting, into which you'll push-in a short length of 2 mm ID/4 mm OD PTFE tubing to act as a guide tube (to help block moisture from reaching the filament that would otherwise be exposed).</p> <p>The inner piece acts as a nut, and the outer piece acts as a gasket, which when used with the inner piece's cap should create a sufficiently-airtight seal to keep humidity out when not printing.</p> <p>You'll of course need to print two each of the base and roller, two each of the regular desiccant box and its snap-in lid, and one each of everything else.</p> <p>The only modification you'll need to do to the container itself is to poke a small hole for the PC4-M6 fitting. Inside, I taped the moisture indicator card that came with the filament.</p> <p><b>Vitamins</b><br/> 4, 688ZZ bearings<br/> 4, M3 x 20 mm screws<br/> 4, M3 nuts</p> <h3>Print instructions</h3><p>Print everything in whatever filament you favor, except for the fitting outer piece and the cap for the inner piece.</p> <p>Do those in TPU. The "tail" of the cap fits through the small offset hole in the inner piece, like a clothing tag, before screwing the inner piece onto the PC4-M6 fitting.</p>