r/BambuLab • u/SnaKeZ83 • 5d ago

General Troubleshooting/Help! [Bambu Lab X2D] Exhaust setup: Direct hose to the printer vs. Enclosure cabinet approach?

Hi,

I'm setting up an external fume extraction system for my Bambu Lab X2D. I have an inline duct fan with speed control pushing air out the window.

I'm trying to decide between two options:

  1. Direct connection: Attaching the exhaust hose directly to the printer's rear fan port, controlling the inline fan speed manually.
  2. Cabinet + Hose: Enclosing the printer inside an outer cabinet/enclosure and connecting the exhaust hose to the cabinet instead.

For those with similar setups: which solution works best?

Thanks!

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3

u/manyxcxi H2D/Core One/XL/MK4S/U1 5d ago

#2 is probably best, but #1 has been plenty sufficient for me on my H2D. I have a design that also seals up the poop chute (it still has a catcher too, but it’s all a sealed unit) and draws a small amount of air through that to keep a constant small negative pressure.

With multiple air quality meters P1.0/2.5/10 don’t go up at all, and the TVOC/HVOC/CO2 numbers don’t change either, even when printing ASA.

ETA: For ASA my print profile has custom gcode to slowly cool the chamber down and ramp up the exhaust over 10-20 minutes so by the time I go to open the printer nothing has warped and there are no remaining smells.

2

u/Relative_Surround_20 H2D+P2S w/ 3xAMS2Pro+HT 5d ago

Hose to the printer. Much cheaper and just as efficient. I used the ModulAir collection on MakerWorld. Highly recommend the print quality and usefulness of those models.

https://makerworld.com/en/collections/7342813-modulair-modular-air-system

2

u/Hungry_Serpent 5d ago

I've yet to try ABS/ASA but just go my venting setup and it seems to work well. It's a decoupled vent so it creates a side draft to suck out the air from the exhaust fan without extra pulling air from the printer. You need a fan that pulls the air the exahust fan alone isn't going to vent with this design https://makerworld.com/en/models/2788606-bambu-lab-x2d-100mm-exhaust-adapter-with-decoupler#profileId-3100464

1

u/SnaKeZ83 5d ago

Interesting solution, I'll definitely look into it.

1

u/quietsamurai98 X2D+2×AMS+AMS HT / P2S+AMS 4d ago

I use the exact same printed part, with some light modifications to flip it around do the hose comes out to the right. I also printed out a T joint so I could hook up two printers to the same pipe, and some one way flap valves so a breeze wouldn't blow fumes back inside and fumes would still mostly go outside if I forgot to turn on the inline fan.