Advanced Cereal Box 4L Silica Gel Holder

This is a silica gel holder that's intended to be mounted at the top of the 4L style cereal box container that's common for filament storage based on https://www.printables.com/model/326673-cereal-box-4l-silica-gel-holder by @ claytononeill_190639 (who scanned lid, design his model and was soooo nice to share source .f3d file).

Like other remixes of this holder, this one started as an attempt to avoid glueing lid to base, but I didn't like or have screws required by other remix and when possible I prefer to avoid longer bridging, so lid slides into the base and snaps-in, which allows it to be easily removed to dump all silica into <whatever you use for drying>.

And then it went down the rabbit hole of small improvements…

Examples of compatible containers:

- Skroam Cereal Containers, 4L (amazon.de)

- Wildone brand boxes (amazon.com)

List of changes from original design:

- Modified Lid-Base connection to slide-and-snap instead of super glue.

- Added hole for PTFE tube to slide through lid and cap for it. Can be used with e.g. FilamentContainer_Passthrough_60mm from https://www.printables.com/model/415050-filament-dry-container )

- Using slicer generated mesh instead of original slits.

- Added optional holders for standard 41mm circular and 45mm x 26mm rectangular hygrometers.

- Slightly shallower / lower height (20mm), to allow installation of some low profile rollers.

List of elements

- Base

- Lid

- Lid PTFE passthrough cap

- Holder/adapter for standard 41mm circular hygrometer

- Holder/adapter for standard 45mm x 26mm rectangular hygrometers

Print settings:

This part assumes you either use Orca Slicer 2.3.1+ or you are familiar with your slicer (and can replicate these settings). Optional settings are marked as such.

3MF file already has recommended settings applied, but if you need to apply them manually, or want to know why some of them are there, see description below (though it is simplified compared to 3MF, to keep it shorter and easier to apply).

- Global settings :

- Quality :

- Wall generator: Arachne ( recommended , some elements are narrower than 0.4 and it works better here)

- Line Width Sparse infill: 0.6 ( recommended , will make mesh more sturdy, and almost all printers with 0.4 nozzle can print it just fine, actually even 0.8 should work)

- Elephant foot compensation: 2 (optional - for my P1S and my PLA it was required to lower friction between base and lid)

-

- Strength:

- Wall loops: 3 ( recommended )

- Internal solid infill pattern: Rectilinear (Recommended

- Sparse infill density: 30% (Mandatory to keep mesh holes small enough.

- Infill/wall overlap: 30% (Optional, it was mainly workaround for bad connections between mesh infill and rest, but model geometry was modified later to ensure proper overlap and adhesion)

- Others:

- Brim: Auto (disable if you use SuperTack/Frostbite plates)

- Objects settings:

- Objects: “Base Modifier” / “Mesh Modifier”:

- Strength - Top/Bottom shell layers: 0 (Mandatory)

This should result in ~ 74g of PLA using 3MF, and slightly more for settings listed above.

Note for orca slicer - if your modifier settings are different in some aspects from parent object or global setting, orca slicer will generate external walls on boundary between modifier and modified object and that will become a weak spot, as for some reason 2.3.1 puts also some space between external walls even if they come from same group…. This applies to number of walls/perimeters, infill density, infill overlap, infill pattern, and probably many others. Different shell settings are fine, but try to not change other things.

Properly configured slicer should generate something like on screenshot below - focus on lack of walls between “naked” infill modifiers and parent object. Infill should be sandwiched between solid layers on boundaries (at least one-two times).