The first fully 3D-printed automatic material system. No electronics required!
MechAMS is a 3D-printable automatic material system for the Bambu Lab A1 3D-printer.
- 8 slots (20 slots in development)
- €30 for the design - €20 in material
- Works with Bambu Studio!
- Mechanical
Product Overview
- Filament slots: 8
- Compatible with the Bambu Lab A1 3D-printer
- Fully 3D-printable on the Bambu Lab A1 3D-printer
- Works with Bambu Studio using a custom print profile.
- Fully tunable and tinker-ready
- STL/3MF files for all printed parts
- Assembly instructions
- Calibration and setup instructions
- The required G-code and print profiles
- Detailed instructions for all steps
- Troubleshooting help
- Bambu Lab A1 3D-printer
- Basic hand tools
- Materials: PLA-CF (rigid) and TPU 95A (pads/seals)
- PTFE tubes
How It Works
4 slots can be printed in 8 hours
Install the printed mechanism and modify the required G-code.
Load up to 8 filaments simultaneously into the mechanism and get ready to print.
Reliable switching with no electronics, near-AMS speed, and low noise.
Why MechAMS?
Full compatibility with the Bambu Lab A1 3D-printer, Bambu Studio, OrcaSlicer, and off-brand filaments.
The modular slot design supports 8 slots/colors today; expansion to 20 slots is in development.
Print the bearings, gears, and housing using PLA-CF and TPU. The only other required parts are PTFE tubes.
Because the mechanism is 3D-printed, replacing parts is as easy as printing them at home in hours.
The mechanism achieves speeds close to the original AMS.
No motors or electronics producing loud noise.
The mechanism is fully tunable via G-code. Speed, purge length, and cleaning can be modified.
Runs independently from closed G-code commands on the latest slicer and printer firmware.
30 bucks and 2 spools will get you printing in 8 colors!
Competitive Comparison
| System | Type | Slots | Electronics | Noise | Cost | Speed | Printable |
|---|---|---|---|---|---|---|---|
| AMS Lite | Electronic | 4 | Yes | Medium | €269 | Moderate | No |
| AMS with AMS Hub | Electronic | Expandable to 16 | Yes | High | €331 (4 slots) - €1258 (16 slots) | Moderate | No |
| BMCMU / BMU | Electronic | 4 | Yes | Medium–High | €95 | Moderate | No |
| Snapmaker U1 | Multi-tool | 4 (tools) | Yes | High | ~€1000 | Fast | No |
| MechAMS | Mechanical | 8 | No | Low | €29 | Slow | Yes |
Buy MechAMS Files
Purchase securely via Gumroad.
- Core STL/3MF models for 8-slot setup
- Calibration & setup guides
- Essential G-code macros
- License: personal use
Checkout is handled securely via Gumroad.