Bento box “could” work in the H2D, but the amount of filtration the bento box offers unless you upgrade it to some high pressure and flow fans (which are incredibly noisy). But it’s awfully small given the internal volume of the H2D.
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Isn’t your design basically a bentobox anyway?
No?
Bento Box is a recirculating filter that goes inside the P1/X1 Printers as an addon. My design just replaces and improves stock filter for better filtration. As Qjo said, the aux fan addon is better for H2D.
Bento box is good for smaller printers that don’t have as much volume. But it’s problem is it has to be very compact to fit in this printers, so it has tiny fans, only 1 small filter, and a little bit of carbon. You can improve the Bento by changing to multiple fans or a blower style fan, but then you might as well have a jet engine inside your printer with that much noise.
I apologize.
I meant your mod is more of a bentobox for the H2D specifically. In heating mode, doesn’t the printer recycle the air?
Also, you can’t run the AUX fan in heating mode as far as I’m aware(but you’re probably about to tell me there is a way to. Lol)
Yea, but mine just replaces the stock bambu filter there with a better one. Just because it filters air doesn’t mean it’s a bento box, the bento box is a specific 3d printed design to filter the air inside printers. All bento boxes are air filters, but not all air filters are bento boxes.
And I believe you can manually turn on aux fan with gcode regardless, but don’t quote me on that as I don’t have the mod and haven’t tried it.
I’m here to tell you there is a way lol. Set the aux fan speed in the filament profile and it’ll run in heating mode. You just won’t be able to adjust it at all, so you have to make sure the filament profile has it where you want it throughout the print.
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Ohhh that’s awesome. Thanks! It was the only reason I hadn’t done the aux fan mod, since I only print in ABS or other engineering materials, I don’t ever use it.
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No problem!
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Guys, does anyone use this activated carbon? It looks pretty solid for a good price, but I can’t find whether it’s acid-free activated carbon. https://www.3djake.com/nevermore3d/carbon-1
This is stated on their listing, but it doesn’t specifically specify that theirs is, though I would assume maybe. But to be safe I’d probably contact them and ask.
The pH value also plays an important role, especially in pH-sensitive applications. Neutral or slightly alkaline activated carbon is ideal for adsorbing a wide range of VOCs, as it can effectively bind neutral, acidic and alkaline pollutants.
⇒ In heated applications such as 3D printing chambers, it can release harmful substances that can even lead to corrosion of the printer. To be on the safe side, vapour-activated and untreated activated carbon should therefore be used.
Really solid design! I printed it in Poly lite ASA it all assembled very easily. I just finished two prints in PETG. My shop smells much better! Thanks for sharing! 
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Just wanted to share this new model I printed last night. H2D top Vent - filter by DRCGRAPIX MakerWorld: Download Free 3D Models It filters the incoming air through the top vent with some foam. I’ve been waiting for a while for someone to finally make this so excuse my excitement lol. I just need to get some filter foam to throw in the buckets now.
I did slightly change the uploaders print profile with modifiers so that only the bottom of the buckets were mesh.
Looks nice. 
What will you be using for the foam? Standardized filters or will you cut material to size yourself?
I bought some of this Amazon.com: PATIKIL 20" x 20" x 0.1" Air Conditioner Filter Replacement, Washable Reusable Cut to Fit Foam Filter Air Filter for RV AC Vent Window Purifiers Computer, 40PPI : Home & Kitchen and then will cut it to size.
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I rated your model today(to which you responded)! My roommate(who pulled it from the printer for me) said it ‘looks certainly interesting’. Haha. I’ll be sure to post how the support removal goes when I get home.
Thank you for making that for us.
Printing and reviewing remotely, while on vacation, that is commitment to the craft
xD. I actually have something else going that is probably be done by now.
Ok I need a tldr
Is something necessary outside of the features of the unit itself?
What materials are venting outside for?
How about closed loop system?
How much does the filament chute matter? Does it need be choked off? Or vented also?
KYZ, for the Aux fan, is it just recirculating chamber air? Never pulls from outside?
That is correct. It’s recirculating.
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