RRC

Rat Rig Community [Unofficial]

The #1 unofficial Rat Rig Community on Discord!

Join

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

AbitNutzT00

10/9/2025

How do you add a new toolboard into RatOS?

I'm interested in using the LDO Orbitool 02S. It's not in RatOS yet. I understand there are configuration files for it that can somehow be added to RatOS to make it a menu option. Can somone tell me how to doo this?

kjay05

10/9/2025

Extremely high gantry twist

Currently getting Front left: 158.622548μm Front center: 95.485946μm Front right: 58.761365μm ...

woodwaker.

10/8/2025

Looking for help with integrating CoPrint on a Rat Rig V-Core 3.1

I have two Coprint systems, one I have been able to connect to my V-core 3.1 and get to function. I have it running under RatOS, but had to remove much of the RatOS code, to get it working. I want to send my second system to someone who could get it fully functional within RatOS. Let me know if you are interested. I would be easier if you are located in the US for shipping, but would consider other locations.

rms497

10/8/2025

can one update klipper in ratos?

In trying to resolve an issue I am having with orbiter filament sensors I discovered I was trying to use a parameter in my printer.cfg that is not supported by the version of klipper running in ratos. Is it possible to update the running version of klipper in ratos gracefully? As an aside, the issue I have with orbiter filament sensor is it gets phantom button presses and tries to load/unload filament during a print. I believe it's configured to handle a clog when the button is pressed while printing. I originally thought it was defective unit from RatRig but the replacement I got has the exact same issue. And then it happened a couple times on the sensor on the other toolhead. I was hoping to add a debounce_delay to both the filament_switch_sensor and gcode_button entries as the klipper reference docs says these are available options and it seems like they could help in running more smoothly. However it seems that they are newer and not suported in the version with ratos....

Volgger

10/7/2025

Idex400 - Offset issues X Axis

Dear all .... I still got an x axis offset of about 0.4 - 0.5mm in x axis direction regardless what I'm trying 🙁 First things first - I triple checked ALL belt length - both heads, both hybrid .... they are exactly same in lenght - also in the clips - same amount of teeth. Tensioning is done with GATS at 28NM ... erverything is perfect aligned .... even without skew compensation the printer is in a very good shape. I'm really frustrated meanwhile .... I did the whole setup process a couple of times .... all the results are "very good" but it always ends up in a x-axis offset 🙁 ...

kjay05

10/6/2025

z_tilt issues - V-Core 3

Just wanted to add more info on this. Currently running with a beacon sensor for my z-axis. I also upgraded my mainbord and the RatOS to current one so I'm still using knowledge from when I was on the 2.02. Currently, it homes correctly on all axis. (Facing the printer) Once I hit z_tilt_adjust, with these current settings: [z_tilt]...

printer.cfg

Metallica

10/6/2025

Help Needed! My Ratrig doesn't start

Hello, I have a ratrig V-core 4 500. It started to fail and now it doesn't start. If i turn on the power, the toolhead fans starts to blow but never connect with my PC. It worked fine before. Any ideas how to solve this? Thank you in advance.

thegreatfox

10/3/2025

RatOS on Orangestorm Giga with BTT Octopus Pro + Beacon + TMC5160

Hi, since we have a Vcore4 and are really happy with RatOS, and also want to get a better control of our Orangestrom Giga, we are thinking about replacing the stock electronic and using RatOS for the Giga. Unfortunately documentation about using a custom printer in RatOS is limited, so I would like to get some information for best practice. Should I start with a printer like the vcore4 and manually edit the config file, or are there other ways to achieve this? Wiring wise we could theoretically...

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....

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!