Prusa3D Forum - Recent Topics

Sretching sound after replacing Revo 6 with another Revo 6. What causes that?

heinzight — Fri, 01 May 2026 04:27:14 +0000

Had the Revo 6 on my MK3S for several months, with beautiful results. Swapped the .4 nozzle for a .25 and began to print. DON'T DO THAT! At least in my case I should have gone through calibrations first as I now have a 'groovy' design on my build plate and it bent the Revo. Ordered and installed new one and powered up. MMU2 spindle revolved but when the head began to move a loud squeely scretch bellowed out. What was that and what could have caused it?

Bad Thermistor in Hotend?

Job — Thu, 30 Apr 2026 20:13:16 +0000

When I start up my MK4 the live temperature reading for the hot end reads around 22o °C, while the hot end is room temperature and it stays room temp when I attempt to preheat the system for printing with PETG.

Is this a bad thermistor that needs to be replaced or is there some other trouble shooting I can attempt? This is pre-built system less than year old.

Calibration data seems lost FW 1.8.0

YZ — Thu, 30 Apr 2026 19:46:26 +0000

Hi
I made SL1S calibration using the printer wizard.
I printed a test model and the result was great.
I took out USB drive to my pc and copy another model.
When i come back to the printer the power was off (maybe asome Time Out) so i press the front button and the printer went ON.
I put the USB drive it the printer and stated to print the new model.
The printer start hitting the platform against the bottom of the tank and made a lot of knocking noise. It seems that it is not calibrated at all.
I stop the print and use calibrate wizard again. I noticed that the Tilt start value wasnt as i set it up in the last calibration procedure. So i calibrate again and print with no problem/
It happened to me after every print, after power shut down.
Why the calibration data lost?
Any knowladge or solution for that?
Thanks

Layers are not finishing. 1st layers are working great. I have cleared out a clogged nozzel.

Beth — Thu, 30 Apr 2026 17:05:10 +0000

Is it possible to use Buddy3D with Core One without wi-fi?

PKoper — Thu, 30 Apr 2026 15:33:18 +0000

I just got Prusa Core One+ and dedicated camera. I am using it at work, where ther is no wi-fi network, and strict regulations about creating one. This is one of the reasons I choose this printer, because it can be connected through the ethernet. Is it possible for camera to send signal through the USB cable to the printer board and to the network, like in Klipper firmware? Or create some wireless connection between the printer and the camera without external router?