Basic Information: Printer Model: Prusa i3 mk3S+ MCU / Printerboard: Rpi 3b+ Host / SBC klippy.log Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed Be sure to check our “Knowledge Base” Cate…

Finally made it! I now have a fully functional Prusa MK3S+ running Klipper. As a self-proclaimed “noob” tinkerer, it took some brainpower and trial-and-error, so I wanted to share my exact setup to save the next person some hassle. Hardware Setup (Raspberry Pi 3B+ to Einsy Board) I decided to use a…

My situation most closely resembles the problem solved in this thread: [image] Print suddenly stops during print General Discussion Basic Information: Printer Model: artillery sidewinder x2 MCU / Printerboard: mainsail, moonraker Host / SBC: raspberry pi …

[image] Fillipooo: new USB cable. I’m not sure what mainboard you are using but be sure to remove the USB power jumper (if it exists) or tape the power pin in your USB cable.

Im using the Einsy RAMBo (MK3/S/+). Tried that after you suggested that, i followed this guide: Put tape on the 5V pin - Why and how - FAQ - OctoPrint Community Forum It didnt work, it ended up so that mainsail could not get connection at all with my printer at all. Stuck at “prusa startup screen”…

[image] Fillipooo: t didnt work, it ended up so that mainsail could not get connection at all with my printer at all. Stuck at “prusa startup screen” with the blower fan going full speed. Then I assume you covered the wrong connection. The issue you mention should not happen when you cover th…

No. I tried both the VCC and the GND, and it gives me the same error message in mainsail. [image] [image] As soon as i remove the tape, Boom i got connection again: [image] So i cannot even try if the voltage on the board is what is messing me up. On RepRap about EinsyRambo under “powering” i…

BTW: Do you have cooling devices on the Pi (heat sinks, fans)? On the Pi 3+, the USB chip can get quite warm.

I do, yes. I used the 3B before, with the fan, and I thought that cooling might be an issue, so I tried the 3B+ which has some improved cooling capabilities and added the fan from the 3B. [image] Temps rarely go over 40°C. It seems to be hovering around 39°C during printing.

Hi Fillipooo, have you been able to fix this issue? it appears to be the same I my issue. The RPI3B+ is freezing during the first or second layer. I have rebuilt and reflashed everything but the issue persists. I have also tried a different RPI 3B+ and stressed tested the RPI and it passed / didnt c…

Hello @Mark82 ! This thread is not marked as solved and the last response of the OP is just 2 hours ago. Please be patient.

Rpi and printer freezes during print

General Discussion

Fillipooo January 8, 2026, 7:29pm 2

My situation most closely resembles the problem solved in this thread:

As a result, I have ordered a replacement power supply and a new USB cable. I plan to test both, and it’s always useful to have a few extra cables on hand.

I will get back here when i have tested it.

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Rpi and printer freezes during print

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