Prusa3D Forum - Recent Topics

0.25 nozzle keeps ketting clogged

mdelol — Tue, 02 Jun 2026 15:58:51 +0000

Hi!
I've recently got myself a 0.25mm nozzle and I'm experiencing clogs almost every time I try to print something.

Settings are correct - standard C1 0.25 mm with prusament PLA, 0.15mm layer height. But after 10 minutes to 1 hour of printing it clogs and stops printing (clicking sounds from extruder, no filament going out of the nozzle). Heating to 270 degrees and using the needle helps to remove the clog.
Any ideas what might be wrong?

Corner Issues

llankie — Tue, 02 Jun 2026 15:44:40 +0000

I'm having a weird issue with this print. The same corner always messes up. It looks like a mix of under and over extrusion. I also thought it might be a bed leveling issue, but I tried the print rotated 180 and also 270 degrees with the same issue. Then I thought it must be the model, but I cut just this section to isolate it for testing, and it printed WAY better. I've tried higher temps, lower temps, infill percentage, seam position, and scarf joint placement, with no change. Any ideas would be greatly appreciated.

For reference, this is in Overture PETG. I printed quite a few parts with the same spool that had no issue, one of them being almost identical to this with no issues.

edit: formatting

Prerusene podavani filamentu, cvakani, zrejme heat creep

MH — Tue, 02 Jun 2026 13:45:21 +0000

Po chvíli tisku s filamentem Prusament PLA se filament přestane vytlačovat.Vytiskne se jen několik vrstev. Poté začne převodovka vydávat klapavé zvuky. Už jsem musel čistit vodicí kolečko a trysku (filament ztvrdl a zlomil se). Problém s podáváním filamentu se stále opakuje. Při montáži hotendu s tryskou se hotend pohybuje kolem osy (ne dolů); mohlo by to být také příčinou problému?

https://storage.googleapis.com/prusa3d-content-prod-14e8-wordpress-forum-prod/2026/06/34f649d7-cvakani-1.mp4

Core One extruder problem need help.

Print2Many — Tue, 02 Jun 2026 12:20:39 +0000

hello. I have reached a point with my problem that where I am just going in cycles with no solution in sight, I have searched a LOT and tried many things that i have been suggest in my search with no luck.

doing any extrusion it will on it skip/slip ( audible click ) and miss parts of the lining seen on the shell and fill. it can do the first layer fine, but anything past that and it will start skip/slip. can hear audible clicks when doing loading and unloading too. it started this after putting in a white filament but now its doing it with every filament. (picture provide at the bottom)
I have tried:
Cold pull x 2
idler screw tension
gearbox alignment calibration
removing and cleaning nozzle
printing without prusaconnect

I'm incredibly tired of this.

Is Anti-Aliasing (Micro-Non-Planar Printing) coming to the prusa slicer?

sdfgsdfga — Tue, 02 Jun 2026 08:59:51 +0000

https://github.com/Theaninova/GCodeZAA

https://www.youtube.com/watch?v=0Hi9lBjZGIM

It seems like it works with the bambu slicer and orca slicer, but will it come to the prusa slicer too? It would make prints so much better

Nozzle Leaking, may have over tightened

Will Harris — Tue, 02 Jun 2026 08:32:31 +0000

My nozzle and heating unit has been slowly leaking. I think it started because I over tightened the nozzle when I put it back on.

But I lowered it the right amount the manual say and am still getting leaks. The manual mentions that over tightening could do damage to the heat break.

Is that likely what's happened here? Is there a fix for it?

Layer shifting

JayMoney — Tue, 02 Jun 2026 07:05:39 +0000

This is a new problem from both a three year old file that's printed without issues before and a five year old printer that hasn't had these issues in the past. The layer shift is impacting both X and Y and at different levels of the Z, it doesn't seem to be reproducable in a consistent manner. I've tried reslicing, changing the fill, lowering the speed, retensioning the belts, tightening the set screws, and I'm running out of ideas as to where else to look for solutions. Can anyone suggest something I'm missing?

Firmware 6.4, bootloader 2.5.0

fed15e11-shift-2.jpg

Upgrade MK3s+ to 3.5s upgrade and enclosure and LCD

Robin_13 — Tue, 02 Jun 2026 00:48:24 +0000

Finally getting around to doing a bunch of work on my printer. All the held off service and upgrades being done and came across an issue. There are no instructions on the xLCD and how to fit it to the outside of the Prusa enclosure. The instructions for the enclosure have the LCD inside the enclosure which is not good when there is a heater inside where the display would be. No answer here, I will contact Prusa.

I cannot find instructions on how do disconnect the LCD ribbon cable in any of the Prusa documentation I have downloaded. I know that there are two side clips on the xLCD. I want to be able to test my upgrade on the bench before putting it into the enclosure. I may look at some different ribbon cable connectors for the enclosure and extend them.

FWIW, I am doing multiple upgrades at this time. Changing to polymer bearings (as a test), REVO hot end (Long overdue) and finishing the MMU3 upgrade to my hotend.

I have found that the polymer bearings I purchased don't have the steel shell and can be distorted by tightening the mounting screws. This affects movement. I want to try polymer bearings to see how they work for 3D printing. No lube needed. Will work to over 100 degrees. I have already had a bearing seize and damage a 8mm rod, even with lubrication. I will post more when I get some data.