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Rat Rig Community [Unofficial]

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RRC

Rat Rig Community [Unofficial]

The #1 unofficial Rat Rig Community on Discord!

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ratos-support

fix-my-print

fix-my-printer

fix-my-resonance

fix-my-mesh

german-support

Macke

10/28/2025

Bad bed leveling of a offset

Good day fellas. I keep having same issues woth all my rats vcore 4 500mm. Very difficult to get correct 1st layer. On small prints it seems fine. But larger area prints not sonwell. In any case print starts nice, zoffset correct but as time goes by I have to keep adjusting z offest to get decent first layer because nozzle goes too low. I do preheat 1.5-2hours. Over 2h seems almost solve that issue. Looks like x axis keeps deforming while printing or something. All printers enclosed and closed d...

RSharpe

10/27/2025

Z banding

I'm getting what I'm gonna call z banding, it's not perfectly horizontal, but at roughly 20 degrees. Printer is ratrig 3.1 500

BubblyCola

10/26/2025

Print issue

Hey there! I can't figure out what is happening here, under extrusion? Printer too fast? ...

Solution:

Nozzle. It was the nozzle, switched to a new brass nozzle.

Jeb Bush

10/25/2025

Ridiculously low flow ratio

I am having a hard time dialing in my flow ratio. I have tried on a couple different filaments without much types and each time I get something in the 0.7 to 0.8 range which seems too low. My printer has a orbiter 2.5 extruder with a Peopoly lancer meltzone long hotend with a 0.6mm nozzle. I am trying to just tune PLA and my print temps are at 205C. I have checked that my extrusion distance is correct. It checked out. Here is my latest flow ratio calibration within orcaslicer which has its 0 flow ratio at 0.9. All of the swatches seem to be significantly over extruded. ...

rbby258

10/19/2025

At the end of my first tool change it tries to move to -60

I'm using prusiaslicer 2.9.0 and I've tried printing at a 45 degree too even though it fits in any axis. Also does it in 2.9.3. Everything is up to date too on the printer. I ran the gcode through chatgpt and it didn't find anything for -60. Vcore 4 idex 500mm. The error in console is : Move out of range: -60.548 493.871 2.773 [738.078] Gcode provided, any help much appreciated....

Solution:

Nevermind think I fixed it with setting my x min to -60

V_neck-through_PETG_...

torkelcool1

10/15/2025

Under extrusion after first layer

Hi. I am printing with the V-core 4.0 500x500 IDEX + Hybrid on single print head mode. For some reason the printer starts under extruding after first layer. The first layer comes out really nice, but immediatly after the following layers look horrible. Doesn't look like it's a clog as the first layer is nice and priming blob is coming out fine. If you listen closely you may hear some weird noise when its doing long movements, not sure what that is. Just did a Beacon calibration and bedmesh before the print. The filament i am using is prusament PLA galaxy black. and the corresponding prusament pla filament preset in prusa slicer with 0.2 Quality and 0.6 mm nozzle. unsure why this skew calibration prints so weird. Tried printing it twice with same results. I have followed the commisioning guide except, Belt tensionioning guide. As i understand it, this is only for corexy/Hybrid and not IDEX....

Solution:

We have narrowed it down to speed and acceleration. When we slowed the entire print down to 60 m/s it worked much better, this is however much slower than the stock. I just noticed the nozzle type is set to CHT instead of regular nozzle. I will try to put it to regular and see if that solves the issue.

torkelcool1

10/10/2025

Weird print defect

Not sure what to call this type of defect. I have tried to run it twice, both showing the same outcome. Only difference was i put on the bigger extruder silicon sock on print no. 2. the print was run with no part cooling fan, as im having issues with it.

Solution:

I think your filament is wet af

justGüner

10/9/2025

Weird artefacts on outer walls

I have a vcore 4 500 IDEX at work and this is the quality of the benchy that it makes. It was printed with the default quality profile. At first I thought that it might be input shaping related, but it doesn't look like the artifacting produced by it. The imperfections are noticeable when rubbing your finger across the print. I have included the shaper graphs in case someone more skilled than me knows what to look for. All shapers are using mzv. All belts are tensioned to about 80Hz....

Frumpy

10/8/2025

smart sensor

running the v core 4 500 idex and when I paste the copied code for the orbital smart sensor, it makes my printer act very weird. pausing prints and continuosly loading filament... or even heating up to 220 on t1 and pushing filament through without any input or trying to run a print. wiring is as diagram shows in build guide

davidfischerch

10/5/2025

V-Core 4 400 from CoreXY to Hybrid - Surface artifacts

Hello, I just installed the Hybrid motors, and tuned input shaper. I previously made the same test in CoreXY. ...

Buddienorway

10/1/2025

Verify_heater issue

So after remodeling my printer room when i started to print again i get a strange error with my printer. Not sure if its something in the update or where this comes from. But i cant get to print since i need to verify my heater. So there is some seetings from my heater that i need to update some added a picture of the console. I redid my pid tuning so that is ok. So there has to be some other issue that ive never seen before that makes this happen. I have the rapido V1 with the round ceramic hea...

kakapo

10/1/2025

unsatisfied with my V-Minion print quality (VFA, ringing, z inconsitencies)

After some (quite major) upgrades I still find myself preferring printing on my old prusa bear opposed to the V-minions. I own 4 minion and would like to print with similar quality on them as on the bear, so i can give that old printer away and only use klipper printers which i can monitor remotely. Note that these prints were done with extremely conservative speeds; prusa mk3 presets (perimeters ~50mm/s). (also tested faster speeds but they are worse even) it is mainly an VFA issue i think. I notice the motion on the bear seems smoother; when i move x and y on the minion i feel a minor vibration which isn't present in the bear. Could upgrading to for example 42STH48-2804AH help here? some upgrades ive done;...

Grenade Magnet

9/29/2025

Calib Cube Sanity Checks

Hey all, I've been working on esteps, PA and flow this weekend. I've run several cubes but I can't seem to shake out some seemingly minor issues. * The back corner of the Y always has an abnormal thickness/ring to it compared to the others being more sharp. * Minor extrusion issues that I thought have been resolved with PA, and it is better than earlier weekend samples, but I feel it could be better....

Takenbacon

9/29/2025

Ghost/wave effect

Just finished up my ratrig and have printed a couple small things, prints seem pretty good except for this interesting ghosting/waveiness on edges. This is my first 3d printer so I have a ton still left to learn, I'm sure there's still plenty of adjustments needed on the printer but just curious about getting a head start on what I should be looking at first. RR 400 hybrid (hybrid motors not hooked up yet for commissioning checks), prusa slicer on PLA standard settings....

APieThief

9/26/2025

Melted bottom layers

Having trouble with bottom few layers looking over melted/ over extruded, but the rest of the print is flawless. It’s happening on every print now, but I’ve used these same settings and it used to print fine, so I’m not sure what has changed… Machine: Stock VCore 3.1 Enclosed Slicer: PrusaSlicer Filament: Polymaker ABS (black)...

Austnikl

9/25/2025

A artifact on tall prints v core 4 hybrid 500

I’ve lowered the accretion and checked the lead screws are tight I have no idea what’s causing these artifacts to appear...

SomeJoe7777

9/25/2025

Prints Warping Off the Bed

Guys, I need some help here. I just had another print completely fail because they keep warping off the bed. I have had 3 previous 3D printers and have never had this problem, but my V-Core 4 never fails to cause a large print to warp off hte bed, even with PLA. I have never once in my life ever considered using any kind of bed adhesive, but I bought some Bed Weld Original and used it for this print. It made absolutely no difference. I cancelled the print when it was clear that all 4 corners were coming off the bed. When I took the bed plate off, the entire thing just fell off the bed plate while it was still at 60C. Absolutely no adhesion at all. This is also my 2nd bed plate, both the original that came from RatRig with the V-Core 4 and this new one I got from Fabreeko are doing the same thing. They're both textured PEI. What are you guys doing to get prints to stick to the bed? Some details about the print: Dimensions: Approximately 150mm x 160mm, rectangular, with 90 deg corners....

Solution:

OK, I think I got this mostly fixed. It was too much cooling. Reduced normal fan speeds to Min 20% / 80 seconds, and Max 35% / 10 seconds. Changed bridging fan speeds to 40% external bridges and 30% internal bridges. And applied a little more bed glue than before. This worked well, got the part printed without any warping and it looks quite good. Note that these fan speeds and times are based on the print parameters given above, i.e. about 18 mm^3/sec flow rate, a 0.4mm nozzle, and mostly long layer times (> 60 sec). If your flow rates are higher, you're using a larger nozzle, or you have small/short layers, you probably will need proportionally more cooling....

Torque

9/16/2025

Surface changes near walls.

Anyone know why this happens? Anytime I have a post or some other extrusion coming out of the print the layer lines get buggered up near that post or hole or even walls. Happens on two different printers actually.

Jarda

9/15/2025

PETG defect on same place of print

Hi, when printing PETG I keep getting this defect in the same spot. With part cooling set to 10% it appears, and with 40% it’s still present but slightly less noticeable. Do you have any advice? Using OrcaSlicer 2.2.

sidowszy

9/10/2025

V-core 3.1 loosing my mind

Hey all! I’m trying to calibrate that damn printer for weeks now and I’m either to stupid or to tired trying to find correct settings. My build is: - rapido hotend 2 - lgx little - rest is stock ...

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Rat Rig Community [Unofficial]

The #1 unofficial Rat Rig Community on Discord!

Rat Rig Community [Unofficial]

The #1 unofficial Rat Rig Community on Discord!