Original Prusa MK4S | Prusa Knowledge Base

Assemble the Original Prusa MK4S

Original Prusa MK4S kit assembly

9 chapters

Moderate

Begin assembly

Upgrade to MK4S from MK4

Original Prusa MK4/MK3.9 to MK4S/MK3.9S upgrade

8 chapters

Moderate

Begin assembly

Upgrade to MK4S from MK3/MK3S/MK3S+

Original Prusa i3 MK3/MK3S/MK3S+ to MK4S/MK3.9S upgrade

12 chapters

Moderate

Begin assembly

Get started with Original Prusa MK4S

First print with PrusaSlicer

If you are using PrusaSlicer for the first time to generate a gcode or bgcode for printing, you can follow the steps below. Click on the links to get more information about the…

Prusa Connect and PrusaLink explained

Prusa Connect and PrusaLink are two remote printing solutions developed in-house by Prusa. Its origin is in the management system used in our record-sized print farm located in…

How to update firmware (CORE One L, CORE One, MK4/S, MK3.9/S, MK3.5/S, XL)

On the Prusa CORE One L, Prusa CORE One/+, Original Prusa MK4/S, MK3.9/S, MK3.5/S, and XL, the firmware is flashed using a USB flash drive. This is valid for all ways of firmware…

Shipping information

Current lead time estimates for new orders Updated: December 10th, 2025 --> The dates are only an estimation…

Fix common issues

Community posts

Print head strangely shifted right

Jared

Jul 12, 2026, 5:14:33 AM
11 replies

Struggling with Print Adhesion

TwinkleJ

Jul 11, 2026, 7:07:06 PM
3 replies

Become an expert in 3D printing

About Prusa Research

Original Prusa MK4S support

Firmware 6.5.7

PrusaSlicer 2.9.6

Handbook 1.01

Assemble the Original Prusa MK4S

Original Prusa MK4S kit assembly

Upgrade to MK4S from MK4

Original Prusa MK4/MK3.9 to MK4S/MK3.9S upgrade

Upgrade to MK4S from MK3/MK3S/MK3S+

Original Prusa i3 MK3/MK3S/MK3S+ to MK4S/MK3.9S upgrade

Get started with Original Prusa MK4S

First print with PrusaSlicer

Prusa Connect and PrusaLink explained

How to update firmware (CORE One L, CORE One, MK4/S, MK3.9/S, MK3.5/S, XL)

Shipping information

Fix common issues

QR Error codes

Changing or replacing the Prusa Nozzle

Warping

Community posts

Still need help?

Get support

Topics

Useful links

Assemble the Original Prusa MK4S

Original Prusa MK4S kit assembly

Upgrade to MK4S from MK4

Original Prusa MK4/MK3.9 to MK4S/MK3.9S upgrade

Upgrade to MK4S from MK3/MK3S/MK3S+

Original Prusa i3 MK3/MK3S/MK3S+ to MK4S/MK3.9S upgrade

Get started with Original Prusa MK4S

First print with PrusaSlicer

Prusa Connect and PrusaLink explained

How to update firmware (CORE One L, CORE One, MK4/S, MK3.9/S, MK3.5/S, XL)

Shipping information

Fix common issues

QR Error codes

Changing or replacing the Prusa Nozzle

Warping

Community posts