Overview
I created this exhaust hose adapter for Bambu Lab P1S to reduce bad smells while printing with ASA and ABS filaments in small rooms.
The adapter has slots to add a hermetic seal and improve the overall performance.
The assembly is easy: use the 4x M3 holes beside the exhaust output grid in the rear panel. You must remove the existing screw on the left, and use 3 additional screws (top, bottom, right) to fix it.
I recommend using a PVC flexible exhaust tube for 3” (8 cm) tubes fixed with a metal clamp.
Note: THIS MODEL IS NOT COMPATIBLE WITH Bambu Lab AMS HUB.
Please use thenew version of the Exhaust Hose Adapterif you installed the AMS Hub on your printer to use multiple AMS or the AMS HT.
My original 3D model is publicly available on OnShape. You can modify it to adapt to your requirements.
I designed also a straight version if 90° is not good for you.
Settings:
- Filament: PETG
- Layer height: 0.2 mm or adaptive layer to obtain a smoother surface
- Infill: Gyroid 15%
- Supports: Tree supports on the build plate only for a better surface
A 90 degree elbow is the right choice when the run from the printer to your exhaust point has to turn a corner shortly after leaving the machine, against a wall, into a nearby window, or down through a shelf, rather than running in a straight line. Keeping that first bend close to the printer, in a solid printed fitting rather than in the flexible hose itself, avoids putting a sharp kink in the hose a few centimeters from the port, which is exactly where flexible ducting likes to collapse and restrict airflow. If your setup instead has a clear straight run away from the printer, the straight version of this adapter is the simpler choice.
Venting exhaust out of the room, rather than relying only on an enclosure’s carbon filter, makes a real difference to how a small print room smells after a long ASA or ABS print, and this elbow is the piece that makes that routing possible when the printer sits against a wall or a corner.
A small fitting that solves a routing problem no printer manufacturer thinks to solve for you.
A short elbow that keeps a hose from fighting the printer’s own layout.
Download
The model is free to download and print, licensed under the Standard Digital File License.