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Original Prusa i3 MK2.5S

Original Prusa i3 MK2.5S support

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© Prusa Research a.s.

Original Prusa i3 MK2.5S support

Firmware 3.14.1

November 28, 2024

PrusaSlicer 2.9.1

April 11, 2025

Handbook 2.62

November 16, 2021

Useful links

MK2.5S Community Forum
MK2.5S Printable Parts
MK2.5S Spare Parts
Sample G-codes

Upgrade to MK2.5S from Original Prusa i3 MK2.5

Upgrade to MK2.5S from Original Prusa i3 MK2

Fix common issues

Warping

Warping

When printing large objects, you can sometimes run into an issue with the corners of the object being lifted from the bed – mostly when printing with high-temperature materials…

Extruder blob

Extruder blob

The blob (mass of plastic accumulated around the hotend) is one of the most scary-looking printing problems you might face with your 3D printer. Removing it after it happens is…

Community posts

Buddy 3D camera wont read qr code

6/14/2025, 9:07:16 AM
3 replies

Spring steel sheet bowing / flexing mid print

6/14/2025, 7:34:46 AM
4 replies

MK4S to Prusa CORE One Conversion kit Waiting list

6/14/2025, 7:28:13 AM
658 replies

Replaced REVO on Mini- it swap filaments, but won't print?

6/14/2025, 7:25:25 AM
3 replies

CORE One resonance noise issue

6/14/2025, 7:23:52 AM
6 replies

1. Introduction

2. Extruder disassembly

3. E-axis assembly

4. Electronics assembly

5. Preflight check

Original Prusa i3 MK2.5 to MK2.5S upgrade

5 chapters

Moderate

1. Introduction

2. Disassembly

3. E-axis assembly

4. Heatbed assembly

5. Electronics

6. Preflight check

Manual changelog MK2.5S

Original Prusa i3 MK2 to MK2.5S upgrade

7 chapters

Difficult