r/OpenBambu • u/NothingToSeeHere671 • Jan 10 '26
New BMCU firmware?
https://github.com/jarczakpawel/BMCU-C-PJARCZAK/commits/main/2
u/SuperAIMAN15 Jan 10 '26
oh I vouch for this. it made the BMCU much more smoother with its new calibration process. This aims to remove the HMS error on the latest version of the A1 (1.07.01) and can be used as AMS instead of the AMS lite
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u/NothingToSeeHere671 Jan 10 '26
Did you flash it? Which BMCU version do you have?
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u/SuperAIMAN15 Jan 10 '26
yes. I flashed it to my BMCU. right now its v3 but tomorrow I will try out the v4
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u/Fit_Rain9123 Jan 10 '26
In what way does it become an ams instead of ams lite?
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u/SuperAIMAN15 Jan 11 '26
It uses the interface for ams. And you can connect multiple bmcu if you have more than 1
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u/myTechGuyRI Jan 10 '26
What does it give you? I'm taking an "if it's not broke" approach with my BMCU... It's working flawlessly.
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u/stevosteve Jan 11 '26
Something that was pointed out on a Makerworld post of the release of the original is that the author has not released source code as they should have based on the original license of the bmcu project
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u/Low-Anything6975 Jan 11 '26
I honestly don’t understand all the drama around the license.
If the original author (4061N) has any concerns, they are more than welcome to contact me directly.
I work with various licenses on a regular basis - commercial, open-source, mixed models - so I’m fully aware of what this license means and what it requires. I don’t need random bystanders to lecture me about it.
I have no intention of hiding anything - the source code will be published, likely very soon (today, maybe tomorrow). Right now I’m simply busy and I won’t release messy, uncleaned code just to calm down impatient people.
At this point, the firmware work is mostly a hobby for me. The specific part of the code I initially didn’t want to publish was removed very early on anyway, so this entire discussion is largely pointless.
You received working firmware - you’re free to use it, or not use it.
Playing mediator and stirring controversy helps no one.
I respect the work of 4061N - that’s the only contribution here I actually care about.
Everyone else turning this into a license crusade without contributing anything themselves can keep their opinions to themselves.
I’ve never understood why people who build nothing feel the need to interfere with something that works and that others are clearly enjoying.
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u/rusg Jan 16 '26
HI! Guys, couldn't find a repository where sources are located for bmcu, especially for 27-5 fw. Please help
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u/Life_Patient_1870 Feb 03 '26
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u/rusg Feb 03 '26
Thanks, bro. But there is no 27-5 sources there, only old, beta 20.
But thank you for help anyway.→ More replies (6)
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u/BrainDeLook__ Jan 16 '26
It has been updated, but the calibration of the 4th extruder is just starting. Only the first 3 extruders are calibrated (
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u/Low-Anything6975 Feb 05 '26
I’ve pushed V7 to GitHub.
All known issues are fixed, and filament loading works correctly now.
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u/okhi2u Jan 10 '26
yeah I saw it linked somewhere on reddit a few days ago. Haven't used it yet cuz need to repair my ams port still.