PETG ribbed wall
Having a weird issue with rib like artifacts showing up on the outer walls when printing with petg, I believe it is a slicer setting because I do not have the same issue with PLA
Solution:
@CrashTestCharlie / VC4 400h So my flow was dialed in already, the culprit seems to be somewhere in the retraction settings. I disabled retract on layer change and then helped quite a bit. Going to play around with retraction speed and deretraction speed
Regular surface distortion pattern towards end of larger first layers VC4
UPDATE 2024-10-15:
This post has become more like a working group channel, currently focussed on investigating gantry bowing induced by heat from the hotend and its fan.
A summary can be found here: https://discord.com/channels/582187371529764864/1293322335545196655/1295834761021100114...
Gaps on small perimeter
I'm printing PETG,using Orca, and on small zone there is gaps when the printer start the circle. So I'm wondering if it's Filament profile on just a setting in Orca
weird pattern on outiside
hello, need help. red part is printed on Vcore3, green is same model, same setting on other klipper machine, patter on red is visible only on outside. what could it be?
Flow Calibration Solid infill holes
Trying to calibrate fast flow while keeping the speed high.
Petg 260 / 80...
Solution:
overgreased the extruder gears and it was getting on the filament
runout triggered on early layers
I have a print that has a fairly sizeable first layer, and have been using 5 solid layers on top and bottom for this print. The print has a strong tendency to clog up the nozzle during these first layers, and I'm trying to figure out why. I've considered:
- overextrusion with a lot of back-pressure from the smooth print bed (EM=0.8)
- issues with the silk filament - I recall that silk filaments tend to clog when there are lots of retractions, and while I've considered overriding the retraction length to 0, the fact is, there aren't very many retractions going on for these solid layers.
Anyone have any thoughts or suggestions?...
Under extrusion on retractions
I've been printing this miniature castle print (thing:7013) for testing and I have what looks like some sort of under extrusion issue with retractions (the right of the windows).
In PrusaSlicer, I've tried both Arachne and classic perimiters, wipe while retracting on/off, a few different retraction settings and speeds, but I can't seem to stop the gaps from appearing. They also show up in the roof corner that has retractions there.
It's like it retracts too early, or isn't overlapping at all....
Solution:
Managed to fix this by adjusting my pressure advance using Ellis' Print Tuning guide and test print rather than the Klipper docs
Issue with dimensional accuracy on the z axis
I have a model that is 171.45 mm tall, I printed it out of NylonX and after measuring it came out to 167.85 mm.
I'm trying to understand, what could cause this?
I'm not sure I've ever had dimensional issues on the z axis. I did recently switch to RatOS v2.1.0-RC2 on my V-Core 3.1 400; I can't imagine that is the issue. Open to ideas....
Temp tower question
I started this magnificent temp tower from 245 to 260 and they all look the same to me. The filament was dried before running the test. Most settings are the starting prusaslicer settings. Using 20% part cooling enclosed. Oh, ASA material. I have tried with no part cooling and it looked like melted ice cream.
Knocking hotend off track
We make multi day prints , of large models and experience that the hotend is knocked over by the nozzle. That obviously causes failure.
This does not occur when printing smaller models, such as benchy.
The picture shows the state of things just prior to a "hit", you can see that blob just waiting ....
These blobs comes from buildup on the nozzle that is deposited. This does not look like a constant buildup, but something that occurs with some time in between. ...
Strange artifact on external perimeter dependent on speed
Hey All!
V-Core 3 with toolhead Rapido 2 UHF (after fixing all screws as they were loose)
I've got a "strange" external perimeter artifact, which is 99% dependent on speed. My basic params are 15000 accel, 300speeds. On those I get what You can see on the top part that is in the picture.
From that I've run couple tests modifying Accels and speeds - lowering accel solved the issue partially, but external perimeter speed solved it....
First layer problem I cannot identify
Hey, I started up my 3d printer after a while and getting a weird problem I haven't encountered yet.
Do you know why it looks like that/Which settings should I have a look at? My first guess was a pressure advance test and I did change the settings from 0.05 to 0.1 according to the test but that didn't help. Do you have an educated guess for me? 🙂...
Burn-through in ASA? What causes this failure?
My bridging fails. Holes in side walls (skirt). Also weird filament curling. Using stock ASA settings with pretty slow printing speed. 260C, 105 bed, 25% max cooling. Enclosed printer and preheat for 30 mins.
