Things I know I DON'T want:

Drilling on the container body. Ever tried drilling those things? The plastic will shatter like crazy and drills will grab and pull like a velociraptor, and that's made even worse because the sides are at an angle, and drilling both the same is a pain in the ass.

#3DPrinting

Loose things inside the box (apart from the dissecant).

Roller carriers that are just sitting inside and can move and wobble around are just a no-no for me. It's just a matter of personal preference, nothing particularly wrong with it per se.

Plan is as follows.

Attach everything to the lid. It's way cheaper than the container, AND it's flat, so much easier to hold and drill, win-win.

Will make aluminium holders for each spool, and attach them (with screws or rivets, unsure about it) and use the springiness to hold the guide bars.

Done!

Will cut the pieces tomorrow and assemble on the weekend-ish.

I wonder if it will hold to riveting (with the large rivet face to the plastic)

Finally!

Kinda bodged the actual support axle, because now I want to do a different way of holding it, one rhat does ot require a 180° bend, and ot's much more reliable.

Of course, I made the noob move of forgetting to remove one diameter from the two screw measurement, so the end hole was 3mm farther than it should. 🤣

Now waiting for the corrected one to print.

Btw, I have to say, the dry filament prints so much better. I should do some more tuning later on.

There, now I don't have to worry about the incoming bowden giving trouble.

Also, the cheapo hygrometer has not gone below 10%. I do not know if it's because it can't, or because the dissecan't can't dry further. In any case, it's better than having the filament at 50-60%

A cross section so you can better understand what is going on on the spoolholder.

It's actually pretty simple and sturdy.

The spools will ride on the axles that rotate on ball bearings, so no matter how the spool is shaped, it will run smooth. I may use some silicone tube over the stainless if I feel it's noisy, but seriously doubt it will (not at least over the noise of the printer)

Wich is better?
/irony/

Definitely an awesome upgrade for the printer, besides the actual benefit of permanently dry filament.

Nothing like doing things calmly, especially using the marking jig and perforating slowly with an apropriate tool (spotting drill 2*5mm, spots easy, makes perfect rivet sized holes, will NOT wander on you.

I'll make 2 more with what I have left, and around this month, 2 extra, for a lot of 5 boxes, and 10 spools capacity.

So, I received this pair of spools that arrived damaged (bags are really fancy hermetic resealable type).

Support reply:

"we have determined that this happened during transport and since humidity is a long term problem, you can use them as normal, test them and get back to us if trouble arises".

No, mf'r, I built fucken fancy dry boxes to hold all my spools, and I am paying for quality and assurance that the dryness optimal conditions are met.

Now take them back, and I'm switching sellers.

And here it is on the box.

I ordered 20 new bearings, and got spare 10mm stainless tube for the axles, will finish them once those arrive.