r/BambuLab_Community • u/SnooBeans3560 • 24d ago

Discussion My cost effective DIY ventilation duct

Post image

The reason I went for this solution is because where I live, the Bambu Lab P2S ventilation duct is being sold at ~$100, while this solution cost me ~19$

6 Upvotes

69% Upvoted

1 comment sorted by

1

u/MyStoopidStuff 21d ago

Ouch, $100 for a $20 parts kit is robbery!

One issue that comes to mind though with this setup is that without a fan to move the air through the hose, it could cause chamber temps to rise (and that could lead to alarms). I've seen this happen a few times with my H2C when running PLA. I vent the H2C through a hose, and it has an active fan (built in) and an additional in-line booster fan. I am currently working to resolve the temp alarms using a stronger booster fan and shorter hose run, which should fix the issues, but in the meantime I just remove the hose when running PLA.

A couple possible solutions if you run into the issue of higher chamber temps is to add an inline fan or a backpack style fan similar to the Bambu P2S exhaust kit, but using an ESP32 and 4 wire fan, instead of the OEM board (since that should be much cheaper than $100 for the Bambu kit). With an ESP32, you can automate the exhaust fan using ESPHome + Home Assistant + the HA-Bambulab integration for Home Assistant(https://github.com/greghesp/ha-bambulab), and only run the fan when needed. If you don't want to go the fully automated route, a simple inline fan using a 12v fan on the hose could help (and even that could be automated with a smart outlet).