Original Prusa i3 MK3S+ | Prusa Knowledge Base

Assemble the Original Prusa i3 MK3S+

Original Prusa i3 MK3S+ kit assembly

11 chapters

Difficult

Begin assembly

Get started with MK3S+

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…

First Layer Calibration (i3)

The First Layer Calibration is used to calibrate the distance between the tip of the nozzle and the print surface. The aim is to adjust the nozzle height until the extruded plastic…

How to update firmware (MK3S+/MK3S/MK3)

Updating the firmware is recommended for all users as every new version brings new features and fixes. To utilize the new SuperPINDA, your MK3S must at least have firmware version…

i3 Printer Regular Maintenance

It is recommended to regularly take some time to maintain your printer. This should be done even if the printer is working perfectly. The inspection and maintenance of its various…

Prusa Printer Upgrades

Original Prusa printers offer a range of upgrade options to keep your machine up-to-date with the latest features. This article overviews available upgrades for various models,…

Upgrade to MK3S+ from MK3/MK3S

Original Prusa i3 MK3/MK3S to MK3S+ upgrade

8 chapters

Difficult

Begin assembly

Fix common issues

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

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

Math behind pressure advance

drmike

Aug 21, 2026, 4:06:16 PM
23 replies

Nozzle cleaning/calibration issues.

Gerald

Aug 21, 2026, 3:57:07 PM
53 replies

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Original Prusa i3 MK3S+ support

Firmware 3.14.1

PrusaSlicer 2.9.6

Handbook 3.18

Assemble the Original Prusa i3 MK3S+

Original Prusa i3 MK3S+ kit assembly

Get started with MK3S+

First print with PrusaSlicer

First Layer Calibration (i3)

How to update firmware (MK3S+/MK3S/MK3)

i3 Printer Regular Maintenance

Prusa Printer Upgrades

Upgrade to MK3S+ from MK3/MK3S

Original Prusa i3 MK3/MK3S to MK3S+ upgrade

Fix common issues

Warping

Extruder blob

Community posts

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Useful links

Topics

Firmware 3.14.1

PrusaSlicer 2.9.6

Handbook 3.18

Assemble the Original Prusa i3 MK3S+

Original Prusa i3 MK3S+ kit assembly

Get started with MK3S+

First print with PrusaSlicer

First Layer Calibration (i3)

How to update firmware (MK3S+/MK3S/MK3)

i3 Printer Regular Maintenance

Prusa Printer Upgrades

Upgrade to MK3S+ from MK3/MK3S

Original Prusa i3 MK3/MK3S to MK3S+ upgrade

Fix common issues

Warping

Extruder blob

Community posts