Rat Rig Community [Unofficial]

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ratos-support

fix-my-print

fix-my-printer

fix-my-resonance

fix-my-mesh

german-support

Pi undervolted?

Suddenly getting these messages recently. Doesn't seem to affect any of the prints so far though. Anybody know what could cause this?
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Lost Communication with MCU 'toolboard_t0'

The printer is a VC4-500 IDEX hybrid. The error occurred for the first time during a 24+ hour print. When I tried to restart the print the next day, the error occurred almost instantly again, but this time it was triggered with a material change by the Orbitor smart sensor. I tried this a few more times, even unplugging the smart sensor, but the printer started homing and heating and encountered the same error. It doesn't seem to make a difference whether the sensor is plugged in or not. Currently, I can't even perform a homing sequence without this error occurring....
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Trouble installing RatOS, configured Octopus v1.1 board but consistent error message

Hello, just installed RatOS and want to finish configuring the main board but keep encountering this error with Klipper. Tried reflashing the board and updating anything I can but still no luck, would appreciate any input!...
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Fresh install of ratos. My manta m8p 1.1 and cb1 is struggling.

Hi there. After a fresh install of ratos. My manta m8p 1.1 and cb1 seems to be struggling. I'm also running the 3.2h upgrade however, I ran brs awd before with no issues. My problem is I keep getting the error shown in the screenshot. The only way I can print is if I turn my camera down to 5fps. I could run it at 25fps before. Sometimes it does it mid print. Doing any input shaper testing etc and pid tuning would also cause this error, randomly. It's like there is something running in the background, causing the printer to run out of resources. ...
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Uneven first layer issue, some areas high, some low.

Attached is my bed mesh at temp. The yellow numbers represent a 3x3 test I did with a piece of paper to show how much the Z had to be adjusted to lightly pinch the paper throughout the build plate. The results seem to be consistent every time. I can't figure out why this is happening but this has been frustrating not being able to use the full bed considering it has a 0.3mm swing from high to low on the paper test. vcore 4 500 idex. Enclosed with bed at 110c and heat soaked for 60 minutes when the heightmap was made. Titanium X rail....
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Lost Communication with MCU

Hi Gents, got an issue that I'm chasing and I could use some guidance on how to track down the offending piece of hardware. So I built my V-Core 4 300 Hybrid about 6 months ago, spent a lot of time getting it adjust and tuned, and had it working really well. In addition to the stock parts, I have 6mm PC enclosure panels, a RatPack filter, and my custom Pi HAT (5V power, cooling fan, and USB 2.0 hub). The problem I am facing is that I have added a RatRoaster chamber heater, and when the chamber gets up to temperature (50C is the temperature I've been trying for), the machine shuts down with the error "Lost Communication with MCU", and usually says "Lost Communication with MCU Beacon". However, I have gotten slightly different errors, such as "Lost Communication with MCU toolboard t0", and "Lost Communication with MCU BTT Octopus". Once the chamber cools down slightly, restarting the machine works and the error has disappeared. The sequence of events goes like this:...

Reinstalled RatOS. Extruder now says it's 193c when it's cold. I forgot how to fix this issue.

Hi there. I have a rapido pheatus v2 with the screw in thermistor type. After reinstalling RatOS due to a bad SD card, I cannot look at my old printer.cfg file to see how to fix this issue. I had the issue a few years back but I managed to sort it. I have tried changing the thermistor type in printer.cfg however nothing changes. Any help would be appreciated! Thanks, Marc...
Solution:
After poking and proding, I noticed after I took the jumper off that that one of the pins was quite wobbly. I gently touched it with my probe and it just fell off.. If I hold a wire from the non broken pin and try and hold it where the broken pin used to be, the temperature works correctly. I wonder if I can desolder the pins and install a new one? I'll take off tomorrow and have a proper look.

I've had to replace my sd card in my manta m8p v1 cb1 board. Struggling to flash.

Hi there. I've had to reinstall ratos due to an sd card failure. I now have 4 brand new SD cards and I cannot for the life of me, write version 2. 1.0 rc2 armbian cb1 to any of the sd cards. If I use pi imager, I get an error saying "verifying write failed. The contents of the sd card is different from what was written to it" If I use balenaetcher 1.8.17 I get "validation failed" with no errors....

New build no hotspot

I’m currently building a vcore4 500. Other than sourcing fasteners for the aluminum upgrades it has been very enjoyable. I’m trying to flash the RPI4 with ratos “2024-7-27-RatOS-2.1.0-RC2-raspberry-rpi32.img.xz” to 3 different Sandisk 64G A1 cards. Same results with each. No hotpot shows up and I get the same LED sequence as I get with no SD card installed. I had to use RUFUS as balenaetcher kept failing validation if that makes a difference. I’m not new to electronics but I am pretty ignorant o...

bed temp not being recognized after reflashing rat os.

Hi, I was having issues upgrading the packages through the update manager, so I reflashed my machine to the newest ratOS, and now my bed isn't heating.... I haven't changed any wiring, and I think I set it up properly to my previous config. v3.1 500mm....

Unable to access Configurator

i get this error message when trying to access configurator: Application error: a client-side exception has occurred (see the browser console for more information). It has been working fine before. but stopped working today. Unsure if it is the new upgrades/updates that did it?...
Solution:
Was issues with the company wifi

4028 fan not working

My part cooling fan for T0 isnt working. Wires have been checked for continuity using multimeter, no issue. White wire is in PA0 on toolboard and red and black is on 12v fan pin on BTT v1.1 board. black on the right and red on left. I have had the jumper on v_in VDC for a while, not realising this is the wrong jumper placement. I now have it on 12V Afraid my fan is fried. Is there a quick way to test this?...

Strange noise when moving T0 in X

Hi there, my printer just startet this noise, but only when moving T0 to the rleft side😬 Yesterday no Sounds, but today during a print it suddenly started.... anybody any idea?

Beacon Z-Offset woes

Hi all. I am having issues setting my Z-Offset. I ran the BEACON_RATOS_CALIBRATE BED_TEMP=50 command for PLA. It ran all the way through and in the end I think it saved the config because it did restart. Went to perform my first print and had to step the head down -0.168. Stopped the print and tried printing a single layer 150x150 square. Started the print and sure enough, had to step down to -0.168 again. This time, before the first layer ended I ran a SAVE_Z_OFFSET followed by a SAVE_CONFIG. Started a new print and again, -0.168. ...

Layer shifts/clunking after 3.2H upgrade

Hey folks, I've had my RR 3.1 running great for years with a few minor upgrades; I was running stock + EBB42 toolhead board and dual (extrusion-less) linear rail. It's been rock solid. Recently a stepper motor died on me so I decided to upgrade to 3.2H since it came out recently. I switched from EVA to the RR toolhead with beacon and went back to using the original 2020 extrusion gantry (as the extrusion-less upgrade doesn't fit the new joiner printed parts)....

SAVE A SOUL and help me make sense of this!

Some history (from FB group): After a power outage, my printer began a job then stopped mid-print. I suspected the Raspberry Pi, so replaced it. Now I can’t get the software to flash the Octopus or toolheads. With everything disconnected, I can flash the Octopus via USB power from the Pi, but since the Pi can’t power the toolboards too, the install fails because it can’t detect them. When I power the Octopus from the PSU instead, the Pi no longer recognises it—so I can flash the Octopus on USB only, but not the toolheads; and with PSU power, not even the Octopus is seen....

Bed Thermistor is kinda moody

See picture - I've seen this before but never so clearly. The printer has not been moving for 14 days. You can clearly see dips in reported Bed temperature when compared to Chamber thermistor, that is on the rear frame profile. Any ideas what causes these dips?...
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Configuration issues

Hi, ratos cant see octopus board, i have installed new fat32 32gb sandisk pro card, and still it is not working. DFU also deosnt work, after putting jumper and clicking "restart" status led is not flashing, and dfu button doesnt light up. Please help
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Ratrig V-Core 4 IDEX 500 error

I just started to get this error today. Not sure what should look for? Stepper driver warning: OTPW flag set The stepper driver 'stepper_z2' has triggered the OTPW flag and may stop working if it gets any hotter. This is an indication of an over temperature condition. This can be caused by a too high current. Please check the stepper driver settings and cooling....

Extruder error

I keep getting this error and im uncertain of the reason I've checked all my cables and have made sure thag everything is connected properly.Not sure what this issue could be as it just keeps getting worse and worse. I can't even home as it give me the same error.
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