Overview
This is version 2 of my Exhaust Hose Adapter, redesigned to be fully compatible with the Bambu Lab AMS Hub.
The original adapter worked well, but it was designed before the AMS Hub existed, and once I added the Hub to my own P1S the old adapter’s footprint and hose routing no longer matched the new hardware around the back of the printer. Rather than leave the original design to slowly become obsolete, I went back into OnShape and reworked the whole thing around the AMS Hub’s actual dimensions, so both pieces of hardware coexist cleanly instead of competing for the same space.
🔧 Key Improvements:
- Resized to match AMS Hub dimensions
- Hose outlet now angled upward for better tube management
- Added a screwdriver access hole for easier installation
- The default print profile is for PETG-HF material using the Support for PLA/PETG material as the support interface
🛠️ Installation Instructions:
- Mounting: Use the four M3 mounting holes located beside the exhaust grid on the rear panel. Start by removing the pre-installed left screw. Then, attach the adapter using three additional M3 screws (top, bottom, and right).
- Sealing (Recommended): For a tighter and more efficient seal, apply a soft tape along the adapter’s border before securing it.
- Hose Connection: Use a 3” (8 cm) flexible PVC exhaust tube. Secure the hose with a metal clamp for a tight, reliable fit. The adapter’s integrated ribbed design reinforces the hose connection, helping the clamp grip securely and improving overall durability.
📐 Customizable Design: The original model is publicly available on OnShape. You’re welcome to modify it to suit your setup or preferences.
The upward-angled outlet in this version also makes the hose itself easier to route once the AMS Hub is in the way, instead of fighting the tubing into an awkward downward bend right behind the printer.
Printing
| Profile | Settings | Print time |
|---|---|---|
| Support Mat | 0.2mm layer, 4 walls, 15% Gyroid infill | ~5.8 h |
Revisiting an older design once your own setup outgrows it is, in my experience, always worth the hour it takes in CAD.
A part designed around the hardware I actually run today, not the setup from a couple of years ago.
The ribbed hose connection and screwdriver access hole both came out of hands-on frustration with the first version: fumbling with a hose clamp in a tight gap behind the printer is a lot easier when the fitting itself gives the clamp something to bite into and leaves room to actually turn a screwdriver.
Download
The model is free to download and print, licensed under the Standard Digital File License.