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Rat Rig Community [Unofficial]

The #1 unofficial Rat Rig Community on Discord!

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RRC

Rat Rig Community [Unofficial]

The #1 unofficial Rat Rig Community on Discord!

Join

ratos-support

fix-my-print

fix-my-printer

fix-my-resonance

fix-my-mesh

german-support

DuBDzO

10/2/2025

Ratos support for simplify3D

Hello all, so I worked on a print temp tower on simplify3D. When attempting to print , ratos advised that this isn’t a suggested or rather a supported slicer, to use the supported slicers. Is their anyway I can use simplify3D or am I SOL?

Solution:

You have to add this to the printer.cfg [ratos] allow_unsupported_slicer_versions: True bypass_post_processing: True...

AbitNutzT00

9/25/2025

Balena Etcher doesn't work for me but Raspberry Pi Imager does.

This is my first RatOS install. I tried Balena Etcher as suggested on the latest version of RatOS, as I've used it with other images. I tried 2 different brand new 32gb SanDisk Ultra SD cards on two different computers and all of them got the same error at the end of the verify and woudn't work. I downloaded Raspberry Pi Imager and it worked without a problem. Not sure what's up with RatOS and Balena Etcher.

rms497

9/25/2025

Printer Cannot Complete A Job, Always "lost communication w/ MCU"

Looking for any help / guidance with problem I've been having for couple days now. Whenever I start a print job, sometimes it could be minutes, sometimes it could be an hour, klipper will always shutdown with a "lost communcation w/ mcu" error. It's been an issue with toolheads, I've seen both T0 and T1 instances, it's been Beacon. It's not the same thing every time, but it's always a "lost communciation w/ MCU" shutdown and the printer crashes. Attaching latest klipper log, but I am not experie...

klippy_16.log

rms497

9/22/2025

after update "Unknown pin chip name 'probe'"

Recently saw that an update to Beacon was available, and without thinking enough, decided to perform the update. After doing so I can no longer boot and get this error:

Unknown pin chip name 'probe'

Unknown pin chip name 'probe'

Could this be specific to the Beacon package update or something else generally wrong? As an aside, should one just never update packages on RatOS?...

Maurice

9/15/2025

Uninstall or comment out Beacon 3D Probe

Hello What is the best way to delete or comment out the beacon sample from the config. I use a cartographer 3d Probe...

giuliob

9/14/2025

Can Sonar be installed?

It seems that Sonar breaks the RatOS configurator, analisys and VAOC services. Ratos doctor doesn't fix. They un-break only if it is uninstalled (deep-purged actually). I am reading that they disabled it in an old alpha because "it breaks the hotspot" (but it's breaking the configurator?). It did work in solving my wifi disconnection problems, but having no VAOC is a bigger problem. Has anyone managed to make it work?

czink

9/13/2025

IDEX Toolchange Deretraction

Hi all, I am trying to do a multi material print with my vcore4 in IDEX, T0 = PETG @ 260C and T1 = PA6 w/ carbon fiber @ 285C. I quickly discovered that T0 will not properly extrude after resuming printing following a tool change. The extruder makes clicking sounds and doesn't extrude for maybe 5 seconds before resuming normal extrusion. T1 doesn't do this after resuming, I'm guessing because the carbon PA6 is less sensitive to heat creep. I initially tried various wipe tower settings with mixed results but that doesn't address the root cause of the extrusion issue. I also tried lowering the T0 temp from 260C all the way to 230C and the issue was still present. After some research it seems that this is due to heat creep and can be addressed with a ~20mm retraction before the tool head is parked. I changed the default IDEX macro settings in printer.cfg for retraction/deretraction to 20mm, but it did not fix the problem due to the tool change deretraction happening immediately after the tool head is parked, rather than immediately before resuming printing as expected....

rms497

9/10/2025

Klipperscreen missing macros

Anyone know why Klipperscreen would be missing a significant number of macros that I would see in mainsail? Specifically, things "Load Filament" and "Unload Filament" are not visible in Klipperscreen macros list. Even going to the settings there to see what is visible and what is not visisble, they (Load/Unload Filament) are not choices, as well as a significant number of other macros are not showing up there no the options in Klipperscreen macros. I would suspect it's somethign easy that Im not...

Zeke

9/7/2025

RatOS Configurator Not Accessible

Howdy folks, When trying to access the configurator tool, I just get a white screen that says "Application error: A client-side exception has occurred (see the browser console for more information)." Some steps that I've tried: ...

Solution:

following this procedure: ```1. Flash image 2. Connect to hotspot 3. Setup wifi through configurator (and let it reboot) 4. Go to /config...

plargent

9/4/2025

What is proper method to tell RatOS/Klipper about a nozzle diameter size change?

I normally use a CHT 0.6mm nozzle and rarely use a CHT 0.4mm nozzle on my RatRig V3.1. RatOS V2 Setup asked me the Nozzle Diameter (0.4/0.6...) and Nozzle type (CHT/Regular) and setup the printer.cfg file. I see "variable_has_cht_nozzle: True" under [gcode_macro T0] in printer.cfg. I do not see where the Nozzle Diameter is recorded as it is not in my printer.cfg file. Klipper must know the correct diameter because is mentioned at the bottom of Dashboard/Extruder panel.
I am changing from the 0.6mm nozzle to the 0.4mm nozzle. I have previously ignored changing the RatOS/Klipper diameter and it has never been an issue. I have the following questions:...

rms497

9/1/2025

Filament Loading/Unloading

Is there any place to change the default filament loading/unloading temperatures? Specifically Im refefrring to when initiating from button press on an obriter filament sensor. Though now as I type I'll probably assume that it's an update somehow to the macros that are running there and configured in printer.cfg ? Woudl that be correct? In addition, I see an entry in ratos-variables.cfg which mentions t0_filament and t1_filament, how/whjere is this getting set? Is this useful? It seems whenever I load filament via the oribtier filament sensor buttons there is no data there, it just looks like unknown values....

Leo H.

8/31/2025

🚨 Urgent Help Needed! 🚨 I’m stuck flashing RatOS and could really use an expert hand.Please help🙏

I have this printer that I spent almost $3000 sitting in my basement for months. Someone was nice enough to build it for me, but now they aren’t able to flush the firmware on for me, so I try to do it, but I have no clue how to do it, and I need help. I’ve tried using the Rat OS manual, but I just couldn’t install it. I have zero clue what I’m doing, and if someone could give me step-by-step help, that would be greatly appreciated. I am willing to compensate them in return. I couldn’t figure out how to flash firmware, especially because I’m using a Mac, that might be part of the issue, but it would be great if someone can help me. EDIT: I have nothing against the RatRig, and I believe they make amazing printers. I just want to get it printing....

rms497

8/30/2025

VAOC Calibrated, But Totally Off Next Time Tool Runs

(This is on a 500) Been reading about the VAOC issues here and not sure my problem fits exactly into the more recent discussions, wondering if anyone would have guidance -- I can run through a VAOC calibration, everything looks good but when I do a multi color print, no good, x offset is quite large. >3-4mm. In trying to understand further, if I do a complete VAOC calibration and save, go back and home the machine, do a z-tilt, if i go back to a VAOC calibration, everything is way off. So it's not that it appears to be calibrated and it's printing incorrectly, it seems like my calibrations get out of whack basically as soon as it's saved. I've validated all screws are tightened, and belts are maybe a little loose but seem in accpetable range. when homed, bottom belts at 105hz and top belts at 98hz. Both sides are at same frequency. Only thing I am not sure on belts is length. All 4 are same length, but Im unsure how that all plays into how much belt is after each clip. If you follow what Im saying do I need to have the exact same number of teeth after the clips (in each toolhead) and I guess on either side of the mouting block for the hybrid belts? That Im not exactly mirrored, could that be an issue? Any guidance on best troublehshooting steps? Comissioning guide really doesnt have much for troubleshooting there. I'll say the x offset in my ratos-vars is perfectly within the values mentioned I should have: ...

Kosmák

8/30/2025

Ratos configurator and real time analysis error

Hi, when I want to go to configurator and real time analysis on already setup machine I get a white screen with Application error: a client-side exception has occurred (see the browser console for more information). anda bunch of errors in console.

Solution:

A possible fix for anyone looking into this issue in the future. I logged in via SCP and followed the path /home/pi/printer_data/logs deleted sonar.log and it works!

GeoQer

8/29/2025

Octopus V1.1 not detected in DFU flash

I am setting up a second VC4 500 IDEX and this time the Octopus v1.1 that came with the kit will not show up in the DFU flash mode after adding the boot0 jumper and power cycling. I ended up flashing it with the sd card. It now shows “up to date”, but still can’t get it to detect to DFU flash in the future. Any advice on what could cause this?...

C1nn

8/28/2025

Touch screen configuration

Recently updated my minion to RATOS 2.1 RC3 and have a BTT PITFT50 5" touch screen and Pi Cam2 on a Pi4. Seems i can't get both the screen and camera to work at the same time. Camera won't display until i remove the screen ribbon. Seen other mention the same trouble and sound like the fix is to change the touch screen from the default type/model to a the model of the touch screen. How do i go about setting the model type for the touch screen? Or is this a different issue?

GeoQer

8/28/2025

RatOS WiFi name change

Is it possible to change the broadcast SSID created by RatOS? I am building a second printer and the boss does not want them on the company network, so we have been logging in direct. But now I am setting up the second RPi RatOS image, there is only one RatOS SSID showing up.

martinvb

8/27/2025

print recovery after power outage

Hello everyone, just wanted to ask if this function is supported and how to configure it in a vcore4. Thanks...

Solution:

Hello. No, this is not supported, yet. Will see if it can be added in the future....

RSharpe

8/27/2025

needing help getting the so3 board to work with rat os

i'm using the smart orbiter 3 with the so3 toolbord i want to use this with ratos

newandy

8/23/2025

Using a smaller build sheet then the actual bed size.

I have a vcore 3.1 500mm and found a deal on some 470mm PEI build sheets. It there an easy way to modify the printer settings to use this smaller sheet so the start print will probe and print in the center of the smaller sheet?

Gaming

Programming

Rat Rig Community [Unofficial]

The #1 unofficial Rat Rig Community on Discord!

Rat Rig Community [Unofficial]

The #1 unofficial Rat Rig Community on Discord!