BMCU 370B is Better Than AMS Lite | The Best Bambu Lab A1 / A1 Mini Upgrade

Is the AMS Lite too expensive or too bulky for your setup? I finally installed the BMCU 370B—a light-weight, budget-friendly alternative for the Bambu Lab A1 and A1 Mini.

In this video, I walk you through the unboxing, installation, and the critical firmware downgrade process that you MUST do. I also show how it integrates seamlessly with my DIY cereal container dry boxes. If you are tight on space or just want to save money, this might be the upgrade you need.

👇 LINKS & RESOURCES

https://offer.alibaba.com/cps/j0il2b4v?bm=cps&src=saf&productId=1601570376046

Cheap Hardened Steel Nozzles:
Wall Mount STL (The one I used): https://makerworld.com/en/models/1474372-bmcu-ceiling-wall-holder-narrow?from=search#profileId-1538610
My DIY Dry Box Tutorial: https://youtu.be/wxuPp_6YWs0

💰 COST BREAKDOWN (Imported to India)
• BMCU Unit: $56 USD (~₹4,750) • Shipping: $42 USD (~₹3,550) • Total: ~$98 USD 💡 Buying Tip: To offset the shipping cost, I added 4x Hardened Steel Nozzles (0.2 - 0.8mm) to the order. They cost me only ₹590 each (vs ₹1,200+ locally). The 0.8mm is tested and works perfectly!

✅ PROS:
Saves ₹10,000+ compared to AMS Lite standalone.
Zero desk footprint (Wall mountable).
Hall Effect sensors = Smooth auto-feeding.
Works with A1 & A1 Mini out of the box (with right firmware downgrade)

⚠️ CONS / THINGS TO KNOW:
Firmware: You MUST downgrade your printer to v01.05.00.00 (shown in video).
[UPDATE] - Works with 1.07 Firmware.

Feeding: Sometimes requires a manual "nudge" to get past the PTFE curve.
Power Loss: If power cuts before retraction, you may need to manually cut/clear filament.

Video Chapters:
00:00 Bambu Lab A1 Mini Problem – Manual Filament Changes
00:46 BMCU 370B vs AMS Lite – Why I Chose BMCU
01:23 Hidden Deal – Cheap Nozzles & Cost Savings
01:55 Wall Mount Setup – DIY Dry Box Integration
02:19 IMPORTANT: Bambu Lab Firmware Downgrade Warning
02:50 Wiring Guide & Safety Precautions
03:12 Hall Effect Feeder Test – Does It Work?
03:34 Multicolor Print Test – Real Results
03:49 Verdict – BMCU Kit vs Pre-Assembled Unit
04:29 Real Drawback #1 – Filament Feeding Assist
05:35 Real Drawback #2 – Power Failure Recovery
06:25 Final Conclusion – Is BMCU 370B Worth It?
Note on Firmware:
At the time of this video, the BMCU requires Bambu Lab Firmware version 01.05.00.00. I show you exactly how to downgrade safely using the Bambu Handy App in this video. Do NOT update your printer until the BMCU firmware supports newer versions!
[Update] - Works with latest firmware 1.07 Now.

#BambuLab #A1Mini #3DPrinting #BMCU370 #AMSLite #DIY #TechUpgrade #MulticolorPrinting

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Видео BMCU 370B is Better Than AMS Lite | The Best Bambu Lab A1 / A1 Mini Upgrade канала Ravi Singh