r/BMCU

▲ 3 r/BMCU

A1 mini firmware

Hello, everyone. My printer is already running the latest firmware version, but my BMCU hasn't arrived yet. Is it already updated to be compatible with this firmware? I believe the version is v01.08.01.00.

reddit.com
u/ImKIQs — 9 hours ago
▲ 1 r/BMCU

Hanging when changing filament?

New BMCU build (hall sensor, high torque). Have a 'sometimes' issue of the filment change getting caught somehow. It's almost like it's not being detected at the A1 end - it pushes forward but just either keeps pushing (and emitting a loud grinding noise) or pauses with pressure on the filament. Usually wiggling the four-into-one part on the A1 will sort it.

Would be great to iron this out - what's the best place to start? Software/firmware? (I read something about 'soft push' firmware). Or the BMCU modules themselves?

reddit.com
u/axisential — 2 days ago
▲ 1 r/BMCU

Final step assembling BMCU issue

Hello all. I'm on my final step of assembling the BMCU - which is mounting the modules to the base.
The problem is, after I followed the high torque manual which said to use a soldering iron to melt the nut into the module housing, and tried to screw the bolt in, the entire nut came out.
This doesn't seem like a big issue, but the problem is even after re-melting the nut into the plastic and trying again, the modules just won't all fit on the base. It seems like the design is wrong or intentionally smaller than it should be.

https://reddit.com/link/1um20vf/video/j5v9d7z4fxah1/player

See video please!

https://preview.redd.it/mo5j1zq4fxah1.jpg?width=3024&format=pjpg&auto=webp&s=242be6c78f181a34da88b893e0d1edf26c03f370

https://preview.redd.it/vak2cvj4fxah1.jpg?width=3024&format=pjpg&auto=webp&s=67b1057dfb0b2f3112d611f1dee2990190e9343b

genuinely pissed lmfao
Thank you for all your help!!
Hopefully I can get this finished soon!!!

reddit.com
u/Prestigious-Pea9349 — 3 days ago
▲ 1 r/BMCU

Just bought a BMCU, how to set it up?

Hi, i just bought a few months old bcmu 370c on ebay and I am wondering what I should do now.

I printed a filament holder and bmcu mount.

Do i need to download extra software, do I need to downgrade my printers firmware?

Anything else I need to do?

I am running a Bambu a1

reddit.com
u/Proof-Future7322 — 4 days ago
▲ 10 r/BMCU+1 crossposts

BMCU MMU for Klipper Ender 3 S1 Pro

Probably an incredibly long shot but does anyone know how to connect BMCU to the klipper or any MMU system to the Ender 3 S1. I'm like 70% there and I'm following the instructions from the GitHub https://github.com/iceblu3710/BMCU370

But I've been having some problems with controlling it as the printer just shuts it down. Is this a power issue or something? Thank you!

u/Any-Voice1220 — 5 days ago
▲ 1 r/BMCU

my bmcu is studdering like a 5yo

when i press load all channels just do this (1mm eatch movment)

smth like in in in out in out innnn outttt in in outt in out and then the printer goes byeond its bundraires

reddit.com
u/ResearchLopsided8950 — 5 days ago
▲ 6 r/BMCU

Bought My First BMCU

I bought my first BMCU. I'm extremely excited, and I'm not sure if this is a common question in the community, but I kindly ask you to respond with care lol. Is it possible that Bambu could simply block the use of the BMCU forever? It was a "considerable" investment in my country's currency.

reddit.com
u/ImKIQs — 5 days ago
▲ 1 r/BMCU

Is there such a thing as a 3710C DM Pro?

Or is this just a typo in the manual?

>Note: For the BMCU 3710C DM Pro sub-motherboard, the positive and negative poles eed to be soldered in reverse. Install the red on the negative pole and the black on the positive pole. Otherwise, after installation, the motor will rotate in the opposite direction.

Assuming that's a typo, can anyone confirm this for my 370 DM Pro? I definitely need to solder the power connectors to the motor around the 'wrong' way?

reddit.com
u/axisential — 7 days ago
▲ 1 r/BMCU

Slot 4 spitting filament back out

When I built my BMCU, I was having many issues, but it was mostly when I came to start a print, it would do the whole process, then right before the printer started, I would get an error message saying something along the lines of "filament not detected".

Since then, I've updated my printer and flashed the BMCU. Now slots 1-3 work great, but I have a new issue where slot 4 won't even let me load the filament when I push the filament in. The autoload is reversed, so it just spits it right back out. Slot four wasn't like this before the flash; it worked normally when it came to feeding. Anyone got any clue how to fix it?

reddit.com
u/Nuttwit — 7 days ago
▲ 1 r/BMCU

BMCU 370C firmware mismatch?

Just got my first BMCU unit. Its a 370C, fully assembled. I've seen some posts say the firmware mismatch warning can be ignored but it's getting a little annoying with the constant blinking. I don't see an option to acknowledge or ignore on there.

I haven’t checked the firmware of the BMCU since the seller claimed to have updated it already but if i do an update on it, would that possibly fix it? Or is this something i would just have to deal with?

reddit.com
u/TheAlienGamer007 — 11 days ago
▲ 4 r/BMCU

Need help with bmcu 370c, Filament is sliping.

I was turned it on for the first time and was loading the filament but it kept giving me errors for the filament

I canceld the print and tried to unload the filament but kept getting errors

Has anyone had this issue?

I bought it and assembled it myself and spent a month on and off working on it

I'm considering taking the loss and just buying a pre assembled one when it goes on sale since I spent so long working on it and having do whatever this is on first print 😭

Printer firmware 1.08

And for the bmcu I don't know

u/Internal_Extreme_430 — 12 days ago
▲ 2 r/BMCU

Anyone else can't change color/material on PJARCZAK 10.3+?

Hi all! I got some units from the Tree Tribe store on AliExpress, all of them have 2 slots for farm filament refill use. I noticed that if I flash 10.2 everything works fine, but anything above that, I can't change the filament type or color, it always stays as white Bambulab PETG.

Since 10.2 works, it shouldn't be an issue, I'm just worried if anything useful comes after 10.5 and I can't upgrade to that.

Has anyone faced this issue and found a workaround?

I'm trying to figure out what changed between 10.2 and 10.5, and I'm compiling some test versions to figure out if I can "fix" it.

reddit.com
u/murilobast — 12 days ago
▲ 1 r/BMCU

Problem with BLV BMCU Kit

Hey all. I recently got a BMCU kit from BLV - its the A kit. The box gave instructions saying that the kit was compatible with the high torque version - and so i printed that. But now i have an issue. The BMG gear is not meshing with the other 182A gears while assembling. Is this supposed to happen, or do I need to go out and buy new gears?

Thanks!!

See photo

https://preview.redd.it/v8hgvan68b9h1.png?width=816&format=png&auto=webp&s=bb3b6c3aaf1934ddbad9d69e71fc68f3327991aa

reddit.com
u/LocationEffective324 — 11 days ago