The original basket weave design by psychprod is ingenious, but being me, as soon as I printed it I knew I would like to tweak a few things, and, again being me, the best way to do so would be to remodel the whole thing from scratch... anyway, I digress.

Biggest change is a modified basket weave pattern. Instead of walls crossing only at single points when changing weave layer, now they are always aligned through a section of the path, which should make the weave much stronger (it is noticeably stiffer, but I did not test to destruction - original came out pretty solid for me anyway). It also looks better when printed in my humble opinion due to less sag (or at least, more uniform sag).

I tweaked the lid, too - now it has a row of ventilation holes below the hygrometer, and has a retaining lip for inserting a ⌀41,5mm paper liner between hygrometer and desiccant chamber. Taken together, this should make air at the hygrometer inlet take longer to equalize, making the measure somewhat more exact compared to the rest of container or bag (but still, it's probably best to wait for a couple of hours before trusting the readout; proximity is proximity, and diffusion can only work so fast, all things considered). One more benefit is preventing any small bits of desiccant from getting inside the hygrometer.

Additionally, I changed the knurling to something more ergonomic (in my opinion), and added slots for the hygrometer retaining tabs, as the fit was extremely tight in the original design, making removal (e.g. for battery replacement) a hassle.

Extra-wide filling funnel included as a bonus, print that one in spiral vase mode if you like it.

STEP and original FreeCAD files attached to make remixing easier, if anyone is so inclined.

Please note: as I remodeled this from scratch, the thread is slightly different and the lids are not interchangeable with the original.