Hydra - Enhanced Bambu Lab AMS 2 PRO (Single Piece - For Large Printers)

Notice!

This is only compatible with the AMS 2 PRO. Please view my other designs for designs supporting other AMS systems, there are plenty.

Update February 7, 2026

I've had a report of the rear roller positions being a bit tight and the rollers not rotating perfectly smooth in all positions so I've increased the tolerances between the rollers and the printed sockets so there's considerably more space for each roller.

The rear rollers are generally around 81.50 mm wide including the bearings and the cutout widths are now up from 82.30 mm to 82.70 mm. If you're still having issues please check your flow ratio and as always I recommend using the print profiles made by me that are tried and tested.

Happy printing!

Update January 26, 2026

Hydra has been updated to version 1.01, it's the first update of the series for the AMS 2 PRO and comes with some nice improvements.

Changes:

• Rebranding, Hydra 2 AMS is now known as Hydra - Enhanced Bambu Lab AMS 2 PRO to avoid confusion and for which AMS system this is for.

• Feeders tilted back to clear very full spools (avoids very full spools hitting the feeder or load button).

• Larger and redesigned cutouts for the PTFE tubes (replaceable from top).

• Improved rear roller positions, allowing for slightly larger diameter spools.

• Improved drying capacity / larger vent holes.

• Optimized Hydra tray position and placement of the front locking tabs.

• New built-in support boxes, these prevent the side walls of the main print from warping. Previously, the supports were just low infill waste prints but these new boxes are very much usable (and stackable!), there will be containers and add-ons for these soon, see the second pic below, the orange boxes. You must still use some manual supports, see instructions below. If you're uncertain, please use the print profiles where all of this is prepared.

Buy Hydra

I've teamed up with a few different stores around the world offering the printed parts and everything you need for the build so you won't need anything outside of the kit:

• MatterHackers (United States)

• VisionToCreate3D (EU)

Hydra has a strict non-commercial license, it can only be sold with licensing through Hume Beam Engineering Solutions. 

About

This is a remix of the current Hydra but for large printers with a +300 mm wide print bed. If you have a 350 mm wide bed or larger you can print it normally and do not have to rotate it, if your bed is 300 mm wide exactly you need to rotate it 45-50 degrees in order for it to fit. 

You can print it diagonally as I have set it on a Bambu H2D for example.

Assembly Guide

View the assembly guide on the page below or by downloading the PDF in the files section.

Hydra - Enhanced Bambu Lab AMS 2 PRO

Print Settings

Print the parts in the direction I have set them. I recommend using a wide brim for improved bed adhesion and Nano Polymer if you have some. The parts are tall and quite narrow.

Hydra have built-in support boxes to prevent warping, do not remove these! Instead set the wall count to 1 wall and use an infill of 5% to save some material on these (using the Object settings in the slicer). If you're uncertain just print the Print Profiles I've made where this is all prepared. 

Support

All my designs and mods on Printables are free to use and remix. They have a non-commercial license. If you enjoy this or any of my other designs you can send me a small donation using the link below. Thanks :)

https://www.paypal.me/humebeamengineering

If you prefer Crypto/BTC you can send me a message.

If you send a donation be sure to mention Hydra 2 AMS in the comments box and you will be assigned a serial number.

Single piece version of Hydra, for larger printers such as Bambu H2D.