Single Spool 4L Drybox with remixed parts

I like 3D_Workspace's great non-retract design, so i integrated it into the filament bunker. this makes the filament bunker a little bit bigger, so i had to remix the lid as well. The lid as almost no tolerance, so you have to play with scaling a little bit (the lid works without adjusting the scale for me). I also added a little handle in the middle of the base, so placing it in or taking the base out of the box is a little bit easier. For the rollers i like emissary's idea of the self-centering roller , but did not like the konvex implementation. So i remixed a self-centering roller in a konkav version (with 608 bearings). After printing an assembling the base, i noticed that my filament roll (Esun cardboard spool with stabilizing ring) did not turn after closing the lid of the box. It stuck on the inner hinge frame of the box lid. So i designed a self-centering roller with 688 bearings, which gives you about 5 mm more clearance to the box lid. Last but not least i designed a chamfer version of both roller; but i have not printed this versions yet.