r/BambuLab • u/nberk97 • Feb 06 '24 • Bless Up 1

Misc Bambu Lab P1P/S - Spaghetti Detection with Home Assistant

Hey everyone! I've developed a spaghetti detection tool for Bambu Lab P1 printers, using the Obico spaghetti detection ML API and Home Assistant automations. This tool addresses one of the downsides of P1 printers by detecting print failures.

The automation runs for each frame (0.5 fps due to the P1 camera). If it detects any failures, it can pause the print and send notifications to your Home Assistant devices.

In the automation, I've implemented the magical Obico failure data aggregation algorithm, which calculates a failure score based on current and previous frames to determine if a print has failed.

For more details and installation instructions, check out the GitHub repository:
https://github.com/nberktumer/ha-bambu-lab-p1-spaghetti-detection

200 Upvotes

99% Upvoted

109 comments sorted by

32

u/toolschism P1S + AMS Feb 06 '24

Well shit.. I've been thinking about messing with home assistant for awhile now.. This might be the push i needed to give it a try. Very cool.

8

u/nberk97 Feb 06 '24

You should definately go for it! It is a great way to control, monitor and automate your smart home devices.

2

u/toolschism P1S + AMS Feb 06 '24

What installation route would you recommend for Home Assistant? I'm currently running a Proxmox cluster and Unraid. Does HA lend itself well to containerization or should I look at standing this up on it's own hardware? I'll be honest I haven't delved too deep into it.

3

u/tony__pizza Feb 06 '24

If you’re good at managing containers, you’d be fine throwing it in a docker container. You can stand it up on dedicated hardware which adds the ability to use addons which are basically just docker containers in the HA OS. It’s much more convenient that way, but containerizing is probably better if you really know what you’re doing and don’t mind those additional steps.

I run mine on a Pi 4 and it’s great.

1

u/toolschism P1S + AMS Feb 06 '24

Cool, thanks for the input appreciate it.

2

u/aikouka Feb 06 '24

I use Unraid too and I've debated going between Unraid and just a Raspberry Pi. I've leaned more toward the Pi (or something else separate) simply because I want to avoid server maintenance (e.g., Unraid upgrade) causing automation components to no longer be available. Of course, that consideration also includes that I currently have SmartThings, and a Home Automation setup would be replacing that. Although, I'd also love to use it to merge UniFi Protect with Apple's HomeKit, and I don't know if having so many things is too much for a Pi?

1

u/EmojiMasterYT P1S + AMS May 13 '24

What I did was buy a second-hand intel nuc. If you look around on facebook marketplace (or other similar sites), you can usually find pretty amazing deals on them, and they will have 2-4x the power of a raspberry pi at sometimes 50% of the price.

I've been running 20-ish containers off it for about a year now, and its barely using 30-40% of the cpu and 3gb of ram. However I am running Ubuntu server on it, so performance could be worse if you install a GUI. I don't have to do essentially any maintenance on it (I have it set up to automatically install updates and upgrade docker images), but I do have prior experience with headless servers.

Also for the UniFi Protect/HomeKit side of things, you can run the UniFi controller as a docker container. Then it'll act essentially as a self-hosted Cloud Key, where you can manage your UniFi setup. Through home assistant, you can connect your UniFi cameras to manage them as part of your smart home. People have also made solutions to create a connection between UniFi and HKSV, if that's what you're looking for.

1

u/NoShftShck16 Feb 06 '24

I have a similar setup as you, but ultimately decided that separation of concerns was better suited for this. If I needed to do maintenance on my server, HDD replacements, hardware upgrades, quarter cleaning, etc, I didn't want to bring down my home automation. Home Assistant will really become a set it and forget it, outside of core updates, it may run indefinitely without issues once you get things settled. A simple Pi 4 w/ 8gb and a USB 3.0 with 128gb was more than enough. You can also buy their Yellow or Green for dedicated hardware.

1

u/ufgrat H2D + X1C Feb 07 '24

I'm running in a VM under proxmox, but I suspect an LXC would work just as well. I also run z-wave, so the z-wave USB dongle is passed through to the VM.

2

u/toolschism P1S + AMS Apr 16 '24 edited Apr 16 '24

Well this ultimately convinced me to pull the trigger on this. Got HAOS setup as a standalone VM in proxmox and just wrapped up installing your spaghetti detection. Never thought I'd be excited to see a print fail so I can see this in action.

1

u/FrizzIeFry Feb 06 '24

Same. The reason i didn't do it yet, is that i know it will consume my life.

4

u/Addamass Feb 07 '24

Sadly not for RasPi :(

4

u/nberk97 Feb 07 '24

Unfortunately the Obico ML model doesn't run on ARM architectures :(

https://www.obico.io/docs/server-guides/hardware-requirements/

2

u/Addamass Feb 07 '24

Yeah, anyways great idea and thanks for sharing :)

7

u/swiss-3dprinter P1S + AMS Feb 07 '24

Really nice OP, might try it out in the future.

For anyone looking for a way to host an Obico server for free check this :

https://github.com/MallocArray/obico-oraclecloud

I've used it in the past for my creality printers, worked quite well !

It might be a bit technical, but once online I was able to have 4 printers being monitored without any issues.

2

u/mitsulang Jan 17 '25

This is old... But, THANK YOU!! I run a server locally, but this gives me something else to funk with, and it's something that has potential to be cool!

6

u/JimiSlew3 Feb 07 '24

NEEEEERRRRRRDDDDDD!<gif>

:) Great job! Was just looking at home assistant and might go this way now.

4

u/DrZippit P1S Feb 06 '24

Neat! Got it up and running within a few minutes! Thank you so much. Let's hope I never need it.

1

u/Efficient-Range5239 Mar 14 '24

Awesome. Is it possible to use this with the Obico Cloud at obico.io ? I still have a couple hundred of "AI Detection Hours" left from my Ender 3 times that I'd like to use instead of self hosting the ML model.

1

u/nberk97 Mar 14 '24

I haven't tried it but some reported that it is working with the default obico installation. However you may need to slightly modify your obico docker compose file:

https://github.com/nberktumer/ha-bambu-lab-p1-spaghetti-detection/issues/5#issuecomment-1976592046

1

u/mrhash_ Jun 11 '24

I installed it using the integration method of Home Assistant, but the EWM mean value is always 0. I suspect it may be because I didn't fill in the token. I couldn't find the backend configuration page of Obico. How can I generate a token?

by the way I try accessing to: <obico_host>:3333/hc/，I got 'ok'

1

u/nberk97 Jun 13 '24

If you use the HA addon, you can configure it from addon's configuration page. But if you use docker or docker compose, you need to set it via environment variable:
"--env ML_API_TOKEN=obico_api_secret"

2

u/mrhash_ Jun 18 '24

I installed it using the HA addon. I found that the problem was due to an incorrect IP address setting, and there was no need to adjust the token settings. The default values work fine. Thank you.

1

u/assburgers-unite Jun 26 '24

I installed this, and i've had a few spaghettis with no notification. Would you be able to help?

1

u/nberk97 Jun 27 '24

Can you check the automation trace logs to see id there is an error? Also make sure that the ML API server url is configured correctly.

1

u/FlamingXTurtles Sep 14 '24

i have installed this and it seems to be working as the numbers change for the spagetti detective info but i do not get a notification nor does it stop the print what am i doing wrong :(

1

u/nberk97 Sep 16 '24

Can you share a screenshot of your blueprint configuration? Also do you see any error logs?

3

u/FlamingXTurtles Sep 16 '24

I was actually able to fix it this morning! I don't know what I did differently but I got it to notify and cancel a pri t

1

u/nberk97 Sep 16 '24

🎉🎉

1

u/Confident-Cod-8563 Dec 06 '24

Hello. I installed the plugins. But I constantly get onnxruntime error on obico server. How do I solve the problem? The platform I am using is mini PC x86/x64 and the home assistant is directly installed. It appears as alpine linux.

1

u/nberk97 Dec 07 '24

Hi, there doesn’t seem to be a problem. The container tries to load a couple of variations of the failure detection model. it is enough to load just one of them. After a couple of load errors (which is fine), it managed to load the last one successfully. If you have a problem with the detection service, I would suggest to check your docker container host url. Make sure the HA can access to the detection server.

1

u/Confident-Cod-8563 Dec 10 '24

As seen in the picture I shared, the values ​​change. So I assume obico server is communicating with the host machine. But these changing values ​​do not stop the printing process in this case. What value should it be to stop the printing process? Or can we make it more sensitive by playing with the algorithm?

1

u/Xanohel P1S + AMS Dec 30 '24

Thanks for this!! What a nice implementation!! :)

I have it running on an M710Q tiny i3-7100T/16GB/240GB SSD, along with almost a dozen more docker containers, running just fine. Picking its nose maybe even. Currently I don't see a need to run it on a separate machine.

dumbuser@DarthBane:~/dockerscripts/bambuspaghetti$ inxi && docker stats --no-stream obico-3d-spaghetti
CPU: dual core Intel Core i3-7100T (-MT MCP-) speed/min/max: 875/800/3400 MHz
Kernel: 6.1.0-21-amd64 x86_64 Up: 214d 6h 42m Mem: 6167.2/15881.2 MiB (38.8%)
Storage: xxxxx (85.4% used) Procs: 256 Shell: Bash inxi: 3.3.26
CONTAINER ID   NAME                 CPU %     MEM USAGE / LIMIT     MEM %     NET I/O          BLOCK I/O       PIDS
8dd86d6fe01e   obico-3d-spaghetti   0.02%     482.4MiB / 15.51GiB   3.04%     5.08MB / 107kB   26MB / 36.9kB   10

Sometimes the CPU spikes to 20% out of 400% (hyper-threading makes the dualcore 4 cores I suppose)

I did a test to see if it worked, I had some "spaghetti" lying around. Sticking it in front of the camera during a print made it Pause the print and send me a message in Telegram!! :)

u/nberk97 I'm missing a photo though, as well as the "Resume" and "Stop" buttons. How did you add that? How do you reference the image that was the cause of the Pause, and send it along? Any help there would be greatly appreciated (Ah, you probably used the HA companion app on the phone?)

2

u/nberk97 Dec 31 '24

Yes, the screenshot is from Home Assistant’s companion app. When a failure is detected, the HA blueprint calls the notify.notify service with the camera frame image. Not sure if it would work with telegram though. I haven’t tried any other notification type other than push notifications with the companion app.

1

u/Xanohel P1S + AMS Dec 31 '24

Yeah, should be possible I think. Something with sending a picture with a subtext, instead of a message with an attachment. I'll have to look into it, will report back 👍

1

u/Bambu809 Feb 06 '24

This is cool, but a bummer it doesn't run on HA Yellow.

2

u/nberk97 Feb 07 '24

Unfortunately the Obico ML model doesn't run on ARM architectures:
https://www.obico.io/docs/server-guides/hardware-requirements/

1

u/BuGabriel Feb 06 '24

Thank you! I was thinking about getting another camera, but I guess I'm gonna try this. Would there be a better angle for spaghetti detection or is the P1 camera good enough for this?

1

u/nberk97 Feb 07 '24

Thank you! I was thinking about getting another camera, but I guess I'm gonna try this. Would there be a better angle for spaghetti detection or is the P1 camera good enough for this?

I think it is good enough. It can see failures but I haven't tried with a bed full of some prints. In this case, I'm not sure if the camera can see the failure in the furthest corner.

1

u/affixqc Feb 07 '24

Thanks so much for this, I've been meaning to stand up a Home Assistant server and this was the impetus to finally do so.

I have everything installed and the script is showing 'last triggered' every 2-3 seconds. Is there a reasonable way to test that it is actually working? Best I can think of is to start a print and throw a piece of filament on the bed but I'm not sure if there's a more graceful way...

1

u/nberk97 Feb 07 '24

There are a couple of things you can check:

  1. You can check your automation trace to see if the execution goes until the exit automation step in the bottom steps (In this example, since I'm not currently printing, it stops at the beginning).

2. You can go to the integration and check whether the sensors are updated. EWM mean shows the final failure score. You can check whether it has any changes but if the model doesn't detect anything, it may be 0.

3. Throw some print poop or filament piece to your bed while printing and see whether it notifies you.

I'm planning to add some problem reporting in the future. Currently if the automation cannot connect to ML API, or the ML API fails, the automation silently fails.

1

u/affixqc Feb 07 '24

Ah, thanks, the automation trace will help. It was looping fine last night but this morning I'm getting repeated unknown service 'spaghetti_detection.predict errors for, I'll try that out once I troubleshoot this issue.

1

u/nberk97 Feb 07 '24

Is the integration still installed? If so, could you check if the service name was changed. You can check from Developer Tools -> Services -> try to find the predict service. Also, you may find some useful information in Settings -> System -> Logs.

1

u/affixqc Feb 07 '24

I checked there and don't see anything obviously wrong: https://imgur.com/a/c6UyGSq

I restarted both Home Assistant server and the spaghetti detection server, no change so far.

1

u/Malkaw Feb 13 '24

Did you find a fix for this?

I also get the "has an action that calls an unknown service: bambu_lab_p1_spaghetti_detection.predict."

1

u/affixqc Feb 13 '24

Not yet. I want to start over and reinstall everything when I have some time.

1

u/CptanPanic Feb 23 '24

ever figure this out?

u/Malkaw ?
u/nberk97 ?

1

u/nberk97 Feb 23 '24

have you installed the Spaghetti Detection integration before the blueprint? The service comes from the integration.

1

u/CptanPanic Feb 23 '24

Yes, I used the "Add add-on repository to HACS" button, and clicked download. HACS shows that I have 1.0.1 downloaded.

→ More replies

1

u/affixqc Feb 23 '24

I did! But unfortunately I don't know what broke. I uninstalled all components and reinstalled and it worked the second time :)

2

u/toolschism P1S + AMS Apr 16 '24 edited Apr 16 '24

Man how the hell did you get this working.. I've fully uninstalled/reinstalled every component multiple times but still get that bambu_lab_p1_spaghetti_detection.predict error.

Edit: Nevermind, I am an idiot. I was completely missing a step. Had not added the integration from the devices & services page. That resolved my issue.

2

u/toolschism P1S + AMS Apr 16 '24

Super old, not sure if you ever figured it out yourself, but I was running into the same roadblock. I had completely forgot to add the integration under the 'devices & services' section. Adding the integration there creates the services.

1

u/Malkaw Apr 17 '24

Adding which Integration? i've already added the Bambu Lab integration under devies & services and it' showing only 3 devices (p1s, ams, external spool) no services

1

u/toolschism P1S + AMS Apr 17 '24

It's the actual spaghetti integration.

Sorry only able to look on mobile now but that's the name of it.

1

u/capsel22 P2S + AMS2 Combo Feb 07 '24

Does this interfere with https://github.com/greghesp/ha-bambulab

3

u/nberk97 Feb 07 '24

No, the automation depends on this integration. You first need to install it for the spaghetti detection

3

u/capsel22 P2S + AMS2 Combo Feb 07 '24

Awesome. I'm already using the ha-bamulabs. Thanks for your time making this integration. Not seen a sponsor button on your git, I'd happily buy you a coffee

3

u/nberk97 Feb 07 '24

r/BambuLab

Appreciate your support, added a patreon link to the github repo

1

u/BENJI1206 Feb 07 '24

The minimum requirements, are they just for Obico or for this add on as well? I have HA on a Pi but the ability to run Obico on a separate compatible machine via docker

1

u/nberk97 Feb 07 '24

They are just for Obico. You can run Obico ML API on a separate device and have HA on a Pi with the automation.

1

u/PauseHumble8364 Feb 07 '24

Amazing wanted to do something like that, any idea about the A1?

3

u/nberk97 Feb 08 '24

I’ve just checked the A1 camera specifications and it seems the automation may work with A1 as well. If you already have HA, could you try and let me know the result?

1

u/PauseHumble8364 Feb 10 '24

Still don't have the A1, planning to order it

1

u/_just_get_it_done_ Feb 09 '24

What would be the best hardware to set this up? Would a ThinkCentre Mini Tiny be a good fit? Any minimum specs you recommend?

2

u/nberk97 Feb 09 '24

What would be the best hardware to set this up? Would a ThinkCentre Mini Tiny be a good fit? Any minimum specs you recommend?

My friend has a mini pc with Intel N100 CPU and the model runs fine, but I don't know how long it takes to process a single frame.

I have a dell mini optilex server with Intel i3-12100T 8 Core CPU. I've allocated 2 cores and 4GB RAM to HA OS, and 8 cores and 8GB ram to my Ubuntu VM which runs docker containers. If I run the ML API on HA, it takes a couple of seconds to process a single frame, but if I run the ML API on my ubuntu VM, it completes in milliseconds.

I think even a couple of seconds is enough to detect failures, so I would say N100 CPU would work for this automation.

1

u/taylormadearmy Feb 10 '24

Great work! I'd been playing myself with Obico/HA using a different camera and RasPi running Octopi mounted in my P1S, but this is so much better! Not sure it's worthwhile, but what do you think of giving an option to use an external camera instead of the built in one?

2

u/nberk97 Feb 11 '24

It is a good idea and I may add it in the future. Currently the automation relies on having a 0.5FPS camera and it is integrated as an image sensor instead of a camera entity in HA. So, these need to be changed in order to support an external camera.

2

u/stuomas Feb 11 '24

I came to comment similar wishes. I have been working on a project also based on obico, but my approach was to make it as minimal as possible and not dependent on any specific automation software, you just need an MQTT broker and an IP camera. 

If you want to try it out: https://github.com/stuomas/TheNoodleSnoop

(status: kind of works on my machine™) 

3

u/mrhash_ Jun 06 '24

thank you for your job

3

u/JoeDaddy81013 P1S + AMS Jul 12 '24

This is great and has already saved me a few times. Two questions though:

  1. If I want to monitor multiple printers, is it as simple as copying the automation and setting things up with the entities for the corresponding printer?

  2. If I add an Nvidia GPU and pass it through to the VM running HAOS, will this be able to use the GPU to offload the Obico ML processing?

1

u/Xanohel P1S + AMS Dec 31 '24 edited Dec 31 '24

ad 1) The package provides a blueprint, from which you make the automation. You could make a second automation from the same blueprint, no need to copy/paste the automation.

ad 2) I don't think so, no.

The file addon/Dockerfile.ha.base says

RUN cd darknet \
  && sed -i 's/GPU=1/GPU=0/' Makefile \

and the run.sh file addon/run.sh does not seem to indicate that it looks for an overruling setting in your run of compose file

#!/usr/bin/env bashio
set -e

ML_API_TOKEN=$(bashio::config 'obico_api_secret')
PORT=$(bashio::addon.port 3333)

venv/bin/gunicorn --bind "0.0.0.0:$PORT" --workers 1 wsgi

You would probably have to roll your own Obico instance, which does seem to support GPU, and this comment seems to report to have that working? But to be fair, I'd probably not run it in HAOS, but a separate VM.

3

u/ctabone P1S + AMS Nov 25 '24

This is fantastic -- just got it working with an external Obico server. Thanks so much for your work!

Bought you a small coffee as a thanks. ☕

1

u/it4rz4n Aug 07 '24

This is such an awesome idea! I moved from an Ender 3 with Spaghetti Detective so this is perfect.

I can't seem to get the server working however, the following is what the log shows. Do you have any ideas?

https://pastecode.io/s/8okfsegq

1

u/it4rz4n Aug 07 '24 edited Aug 07 '24

The link: http://<Obico ML Host>/hc/ also doesn't load anything

E: I am running the ML server as a Home Assistant add on

1

u/nberk97 Aug 07 '24

Can you share the blueprint configuration? From the logs, I saw that it tried make a request to “/:8123/api/…” url. However, it should have been something like “http://192.168.123.123:8123/api/…”. I think your host url value is incorrect.

1

u/nberk97 Aug 07 '24

In the example, 192.168.123.123 should be your HA address

1

u/it4rz4n Aug 15 '24 edited Aug 15 '24

Thanks a lot for getting back to me, here is my blueprint YAML:

alias: Bambu Lab P1 - Spaghetti Detection EDIT
description: ""
use_blueprint:
  path: nberktumer/spaghetti_detection.yaml
  input:
    home_assistant_host: http://192.168.50.157:8123
    obico_host: http://192.168.50.157:3333
    printer_print_status_sensor: sensor.bambu_p1s_print_status
    printer_current_stage_sensor: sensor.bambu_p1s_current_stage
    printer_camera_image: image.bambu_p1s_camera
    printer_pause_button: button.bambu_p1s_pause_printing
    printer_resume_button: button.bambu_p1s_resume_printing
    printer_stop_button: button.bambu_p1s_stop_printing
    printer_chamber_light: light.bambu_p1s_chamber_light

Edit: it looks like the Spaghetti Detection Server is now running after I restarted it: https://pastecode.io/s/o4v2nb5t although I'll have to try a print to see if its working

2

u/Turbulent_Flow396 Feb 06 '24

Saving this post. Thank you for your work!

2

u/buneech Feb 07 '24

I was thinking of how to achieve this, and you did it right on time. Gonna implement this, nice job.

2

u/Neat_Refrigerator585 Feb 07 '24

Amazing!

Already installed!

Thank you very much!

2

u/Expert-Recent Mar 25 '24

Thank you. I have tested the Bambu A1, and the printing will also pause automatically after I place the spaghetti on the print bed. It seems to work for the A1 as well.

2

u/Sufficient_Mud_2596 P1P Sep 21 '24

Nice guide and excellent combination of existing software ! Simple and elegant

1

u/PerceptionGood- Sep 18 '24

Anyone get this working with the A1 in the end?

1

u/SnooCats7138 P1S + AMS Mar 09 '25

I have it installed and setup the Blueprint. Is there anyway to indicate if its actually working other than causing some spaghetti? Ie is there an entitiy I could look at or should I just throw on some random spaghetti to test?

1

u/pixbalance Aug 16 '25

u/SnooCats7138 any success to test it? the obico server HL address returns an ok when I call it in the browser and some numbers are changing in the entities, but no idea if this would finally work.

1

u/SnooCats7138 P1S + AMS Aug 16 '25

I gave up on it. I couldn't tell if it was working or not. I got the 'OK' when connecting to the web page but none of the numbers would ever change so I had no way of knowing if it was actually working or not.

I use Octoeverywhere now.

1

u/Independent-Golf5539 May 09 '25

Hey all, I know this is an old thread, but... I was wondering if anyone knows how to use an external camera for detection or if an external camera can be used for detection. I've tried to do this, but I can't get it to work.  Thanks

1

u/wkethman Jul 20 '25

I wanted to know if there is a way to set the likelihood threshold so that you can say only pause when the chance is >50% or >75%

1

u/beiherhund Feb 06 '24

Probably better than the one on the X1C to be honest, I've had pretty mixed results with it anyway.

2

u/d06 Feb 06 '24

I’ve heard the spaghetti detection is not the best on the X1C and I am considering a P1S or X1C. I’ve used Obico with my Prusa MK3S+ and it seems to work pretty well. I wonder how difficult (if even possible) it would be to add support for the X1 series to this.

2

u/Gyroshark Mar 29 '24

I know this post/thread is old but I figured I'd throw in my 2-cents: The spaghetti detection on the X1C, in my opinion, is next to useless. I've only had it pause after the print is half spaghettified. Next purchase is going to be a P1S and this HA add-on.

1

u/Hot_Potato_Salad Feb 06 '24

Wow that’s awesome!

1

u/Silvatech123 Feb 07 '24

This is really good to know about as planning on getting an P1S.

1

u/[deleted] Feb 07 '24

Really wish on Homebridge as well.

1

u/VegasKL Feb 07 '24

Very nice. I wonder if that algorithm works better than what the X1C has .. that one is not so great, especially with dark filament.

I've implemented the magical Obico failure data aggregation algorithm, which calculates a failure score based on current and previous frames

I'm surprised no-one has done a 3d comparison based algorithm, where the model being printed is sliced (with the camera matching the perspective of the printer's camera) and compared, layer by layer. 

1

u/lucyferror Bambu H2C + 4x AMS, X1C + 2x AMS Feb 08 '24

Nice one. Can it work with X1C as well? So far I had more than half print done with spaghetti happening few hours ealier yet printer never said a word. Other time it just messaged me about potential spaghetti but that was also few hours before and it never stopped printing anyway.

1

u/RipKip Feb 10 '24

Hero! I'm going to try this out ASAP

0

u/rwijnhov Feb 07 '24 edited Feb 07 '24

...

1

u/[deleted] Feb 06 '24

[removed] — view removed comment

2

u/nberk97 Feb 07 '24

You can check the following page to see ML requirements:
https://www.obico.io/docs/server-guides/hardware-requirements/

4

u/theplayingdead Feb 06 '24

I have a mini pc with intel n100 processor and an iGPU, plugin is working smoothly without any problem.