Filament dry box

I've designed a few parts to create a filament dry box for printing moisture-sensitive filaments like Nylons TPUs and so on. I've built mine out of an IKEA 365+ container (792.767.60 , 10,6L) which conveniently comes with a seal inside the lid. Additionally, you'll need a Bowden set with M10 and M6 bowden couplers which you can get quite cheaply on Amazon and some silica gel desiccant.

I've designed holders for a rod to support the filament, couplers in order to connect M10 Bowden connectors and have modified a cover for the Extruder of the Prusa I3 MK3s to accept an M6 bowden coupler.

I've included the fusion 360 files of the pass-throughs and the holders for the supporting rod so you can change thread sizes or dimensions. The rod-holder was designed with parametric user variables so you can easily adjust the hole diameter and the size of the screw holes. You can also export modifier meshes around the screw holes to set the area around them to 100% infill in order to use heat-set inserts.

Print instructions

Print the parts in whatever resolution you like just make sure you set it to at least 0,15 mm when printing the threads for the bowden couplers, that way I haven't had any issues screwing them in.

You can use PLA or whatever you want for the parts of the dry box. For the extruder cover Prusa recommends using a black filament, I would have chosen PETG but I went with black ASA instead because that's what I've had on hand.