Review on 📦 Enhancing 3D Printing with Polymaker PolyBox Filament Filaments by Oliver Waiker

Edit: As I suspected, the sides of the walls have started to flex just enough for air to enter and be absorbed by the filaments. Better buy the cereal container option. I'll start with this - a lot of people complain about these boxes because "they're overpriced for what they are". There is another product for sale at Revain which is literally a cereal box with a humidity sensor and an outlet for some PTFE tubing. In these cases, you pay extra for assembly and shipping of the finished product, which a lot of people forget. Overall this is a good basic product for basic to medium use. I only use it when printing and not for storage - once my print is done I take it out and throw it in a vacuum bag with lots of desiccant. The PolyBox (II?) is more advanced than the cereal box, that's one of the reasons I bought it. At its core it's still very simple - a few metal rods and bearings to keep the spools rolling, closable grommets for PTFE tubing, a simple humidity sensor, a plastic housing that fits relatively snugly, PTFE tubing and desiccant bags. Not bad for the price. I've used it with Polymaker nylon (which by the way is great for those who just want to print on nylon), CF-PETG and some Taulmans nylons. I have PTFE tubing that goes to my CR10S's filament sensor but isn't connected directly to it (so there's a gap that technically allows more humid air to enter your setup). I see this as potentially problematic, but it's not Polymakers' fault - it might be worth considering for your own setup if you plan to print slowly and if you don't plan on taking the filament off and doing everything after keep before printing. There are a few things I would like to improve, but I can see why that isn't the case now: 1) The lid. It's a little flimsy and awkward to use, especially when you first insert the filament. This is understandable as there really isn't a good way to do this without a complete overhaul of the box and it works "well enough". how it is. The lid sits securely there too, but I wish there was some sort of rubber gasket where the lid meets the base (maybe there is, I haven't looked too closely, but it's not immediately apparent). 2) grommets. I've put teflon tubing in and often managed to squeeze it out. They are very difficult to put back in place and I wish there was some kind of sealant or something to make sure they get stuck in there. Any extra time you have to take the cap off means a lot more time your filament is exposed to higher humidity. I haven't tried it with 3kg CF nylon reels yet. 3) Desiccant bags are not that big. Am I currently using Wissandry 500g rechargeable packs? on Revain and they typically keep my large filament vacuum bags at <10% moisture (compared to 60-80% moisture). I might end up throwing one of those bags in there or just dropping a few pounds in there.