Rat Rig Community [Unofficial]

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Rat Rig Community [Unofficial]

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ratos-support

fix-my-print

fix-my-printer

fix-my-resonance

fix-my-mesh

german-support

VAOC camera not working

The VAOC camera does not work in the VAOC tab of the RatOs. "Webcam stream not found" I have SSHd into the Pi and have started ustreamer manually and the camera works fine, so its not a hardware issue from what it seems....

Error Message

Help! I’m new to this…anyone have a fix?

Layer Shift V Core 4 500

Hey all, getting some layer shifting on my v core 500, been tightening and loosening the belts to no real improvement. just curious if anyone has some steps i can follow to try and narrow down the issue.

Squaring the gantry

When I follow the ratrig procedure to square the gantry I end up with unequal belt tension and quite a notchy travel, when pushing the toolhead around by hand. It moves pretty smooth with equal belt tension(frequency) but there is then some play in one side of the gantry. Is there a way to square it without stripping the printer?...

Can't get printer to print more objects at once

Hi everyone, I’m trying to print with my newly built VC4-400 with the hybrid upgrade, but I can’t get it to work as expected. The first layer on the first object looks fine, but each following object turns out worse and worse. I’ve attached photos: ...
No description

Only changes to RatOS make changes.

The documentation clearly says "You should never edit the RatOS.cfg file, as this will be overwritten when you update RatOS". However there is two RatOS.cfg. One called RatOS.cfg and the other called RatOS-20250823_035757.cfg. This obviously is a date. So I assume the documentation wants me to make changes to the file with the date and not the RatOS.cfg file. However, when I make changed nothing happens. It's only when I make changed to RatOS.cfg is make changes....
No description

How can i override a ratos variable for different adxl_chips?

Id like to use the beacon accel from T0 and a usb c nozzle accel for T1 Whats the best way to specify/override this? RatOS.cfg wrongly defines:...
Solution:
you should be able to just write this in the printer.cfg:
[gcode_macro RatOS]
variable_adxl_chip: ["beacon", "adxl345 rpi"]
[gcode_macro RatOS]
variable_adxl_chip: ["beacon", "adxl345 rpi"]
...

Vc4 layer seperation and heavy stringing

I installed a new hotend in my vc4 due to the old one being surrounded by a blob of plastic. Despite the two rolls of filament printing fine in other printers I’m getting stringing and delamination. Might the new hotend be faulty and measuring wrong temps?

Part Cooling fan doesn't work any more

Hello, I made a little oopsie, I changed a jumper of the controller fan on my octopus v1.1 while power was on (I know dumb). I wanted to change from 12 to 24v and accidentally shorted the 24v jumper with pliers while the jumper was still on the 12v....

T0 belt slipping/mechanical problem? (IDEX)

For the last two weeks, I’ve been trying to fix resonance issues on my T0 printhead. At first, I thought the problem was caused by unequal belt tension. However, after printing the GATS test and re-tensioning the belts, the resonance was still present. The graphs shown were taken with a 3.2 kg weight (I also tested with 2 kg, with similar results). As a next step, I disassembled the motors on the left side that drive the T0 axis, and reassembled them while carefully checking each pulley to ensure smooth rotation (including the gantry pulleys). After reassembly and belt re-tensioning, I noticed that the belts for T0 were moving up and down significantly (see video). For now, I skipped the input shaper results and tried printing directly, but T0 experienced severe layer shifts, most likely due to belt slipping....
No description

layershifts and not able to run performance mode without warnings

Random layer shifts on long prints. Sometimes a 10-hour print is perfect, other times a 4-hour print has 2–4 layer shifts. The shifts aren’t consistent in Z height or size (sometimes small, sometimes large “stair steps”). Troubleshooting so far: Mechanics: belts are tensioned, pulleys grub screws checked, rails greased, no obvious snags in wiring/drag chain. ...

Initial Z-Tilt is failing. New Build

I just got my V-Core 4 400mm Hybrid turned on today and was running through the commisioning guide. I got to the Z-Tilt calibration with no real issues except a bad crimp on one of the X Endstop wires. Everything seems to be fine until I attempt the Z-Tilt. When I attempt the Z-Tilt it will go to a couple spots then goes to the end of the X rail and I get an error saying "No trigger on probe after full movement." I have already checked the motor direction and can move the toolhead via the controls in Mainsail without issue....

No trigger on x after full movement - x carriage only seems to have problems during homing.

I'm running a v-core 3.1 500. I've made no physical changes and I'm running RatOS v2.1.0-RC 2 (bullseye). I have physical endstops on both X and Y. When homing X, the carriage moves only a few inches/cm and stops. Homing starts from the center of the extrusion and never makes it to the endstops. Here's what I've checked/done so far:...

abs(): 'Undefined' Error

Hello! New to RatOS, somewhat familiar with Klipper. Just set up the printer (INDEX) and am getting this message when I try to print: Error evaluating 'gcode_macro START_PRINT:gcode': TypeError: bad operand type for abs(): 'Undefined' As far as I can tell is comes to this line here under the RatOS/macros.cfg - [gcode_macro START_PRINT]...

LED Light Strips

Having issues with wiring up the strips that came with the V-core 4 kit. Granted I am using solid core Cat6. But that should mater for testing. Plus I don't have the proper wire on hand. Any thoughts? Ground is going to ground and hot is going to hot. I'm not missing something stupid where theres a toggle for turning the lights on?...

UART problem: Unable to read tmc uart 'stepper_x' register IFCNT

Hi, I know some other people have reported this but I cannot find a solution. I was upgrading my printer and it was working fine and then I happened to do a short circuit when adding a controller FAN. Since then I get the error above when homing wither X or Y axis. NOTE even when trying to home Y The error reports on stepper_X like above. I tried moving an unused driver to motor 0(X) and that didn't help. Did I fry my board and need a new one? Any help is appreciated....
Solution:
Ok I ordered new controller AND new drivers. Receiving them I replaced all drivers before trying the new controller and that worked. So one or more drivers are dead. Just for anyone else in my situation.

X axis motion during Y retract when homing.

I have recently been trouble shooting some problems with my x axis when I noticed some wired things happening during my home sequence. I am not sure if these two issues are related. During the homing sequence the both tool heads stay in position (like they should) until the y retract happens. During the y retract both tool heads move into each other causing crashes when they should be staying in place. After that each toolhead homes x just fine. What gives?
Solution:
I belted my Y axis wrong on Y2 motor

Heater bed not heating correctly

So odd issue just started happening on my VCore 4 400 hybrid, went to start a new print and the print bed heater got to temp then just started dropping. This caused safety shutdown. Now when heating temp on display goes down?? Any idea what the problem is or how to correct?

Beacon angle off…

So I have a major issue getting my V-core 4 to put down any first layer I would call consistent or even mediocre. For months, I have been troubleshooting everything I have read that could cause issues with the first layer. By a fluke, when I was taking measurements, I noticed the Beacon PCB was anything but straight. It slopes due to the printed part is badly printed, and the inserts are not put in straight. The distance from the nozzle to the bed in the photo is 0.5mm. The distance from the back of the beacon PCB to the plate is 3.2-3.4mm....
No description

V-Core 3.1 makes grinding noice and cant move straight.

when i turned of my printer to put on my new build plate and tried to home it over turning on it makes a horrible noice and doesn't move straight .