There is a Chinese proverb:

“When the winds of change blow, some build walls, others build windmills.”

Right now, something important is happening in the ecosystem around Bambu Lab printers.

Users are not just consuming the product — they are actively extending it.

And they are doing it at scale.

 
❗ The Problem
Today, many users — especially owners of entry-level models — are already using BMCU and similar non-official DIY solutions for multi-material feeding.

However, due to the lack of official support, they are forced to:

• emulate AMS behavior
• modify or downgrade firmware
• rely on unstable workarounds

This leads to:

• reduced reliability
• inconsistent user experience
• increased hacking and reverse engineering
   

📊 Scale of the Segment
In certain user segments — particularly among technically advanced users and owners of entry-level printers:

BMCU-style solutions already reach up to ~10% adoption (and this is a conservative estimate!)

These are not casual users.

They are:

engineers
developers
power users
community contributors
They write guides, build tools, create content, and influence purchasing decisions.

 

In other words:
this is a (relatively) small but highly influential group.

 
📈 Evidence of Real Demand
Even within Bambu Lab’s own ecosystem:

MakerWorld already hosts dozens and hundreds of models and projects related to BMCU!
There are multiple firmware variations, hardware revisions, and community builds, forums, chats, channels dedicated exclusively to BMCU although  this is only one of a few. 
This is no longer experimentation.

👉 This is an emerging ecosystem.

 
🔁 A Key Reality
Solutions like BMCU cannot be fully prevented. T

Without official support, users will continue to:

downgrade firmware
reverse engineer communication protocols
develop alternative systems
This is already happening — and will continue.

👉 The real question is not whether this will exist, but:

Will it exist under your control — or outside of it?

 
⚙️(main) A Practical Proposal
We are not asking to open everything.

We propose a controlled, limited approach:

1. Provide a basic, restricted communication protocol
2. Introduce a firmware mode such as “External Filament Module

It can be limited to support only entry-level printers for a start.
This preserves control while enabling structured integration.

 
📦 Where AMS Lite Fits — and Where It Doesn’t
AMS Lite is a logical step forward — but it serves a different stage of the user journey.

From a user perspective, it has several limitations:

💰 Cost
Still a significant upgrade for entry-level users

📐 Physical footprint
Requires additional space and setup

🔧 Rigidity
Closed architecture with limited flexibility

 

 
🚀 Strategic Benefits
A controlled open interface could:

1. Expand the entry funnel
Lower the barrier for new users

2. Increase customer lifetime value
DIY → engagement → AMS → upgrades

3. Reduce hacking and instability
Replace reverse engineering with supported integration

4. Strengthen the ecosystem
Enable more projects, integrations, and innovation

 
🧠 Industry Precedents
Apple
— MFi Program
Controlled openness → massive accessory ecosystem

 
DJI
— SDK
Developer access → expanded use cases and dominance

 
Xiaomi
— IoT Platform
Open interfaces → rapid ecosystem scaling

 
🧠 Perspective
As Sun Tzu wrote:

“A wise leader uses the strength of others.”

Your community is already building value around your products.

 
As Jack Ma said:

“If you help others succeed, you succeed as well.”

 
⚠️ Reputation Matters
A recent incident involving pressure on a developer within the Bambu Lab ecosystem has already affected how parts of the DIY community perceive the company.

Even if the intent was to protect intellectual property, the outcome was:

reduced trust
increased tension
a perception of closedness
👉 A controlled, constructive step toward openness could help rebuild that trust.

 
⚖️ Balance
We are not asking to:

expose proprietary technologies
weaken AMS
reduce product value
We are proposing:

a limited, controlled interface
clear boundaries
a structured integration path
 
🎯 Conclusion
This approach could:

strengthen market position
increase long-term profitability
expand the user base
reduce hacking
improve user experience
reinforce the ecosystem
 
📣 Call to Action
We ask Bambu Lab to:

publish a basic protocol specification
introduce an “External Filament Module” mode

 
🔚 Final Thought
The ecosystem is already evolving.

The only question is:

Will it evolve with you — or around you?