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Original Prusa SL1S SPEED

Original Prusa SL1S SPEED support

Original Prusa SL1S SPEED support

Firmware 1.8.0

March 11, 2025

PrusaSlicer 2.9.3

September 15, 2025

Handbook 1.08

April 04, 2024

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SL1S Community Forum
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SL1S 360° Viewer
Sample G-codes

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Upgrade to SL1S SPEED from Original Prusa SL1

Get started with SL1S

Prusa Connect setup (SL1/S)

Prusa Connect setup (SL1/S)

Starting from firmware 1.8.0, the Original Prusa SL1/S can be added to Prusa Connect. There are three ways to do it. Touchscreen GUI on the printer Go to the printer menu to Settings…

Firmware updating (SL1/SL1S)

Firmware updating (SL1/SL1S)

The Original Prusa SL1 has an update-server, which is checking for updates automatically. There is no need to do it manually, but this option is still possible. Starting from firmware…

Shipping information

Shipping information

Current lead time estimates for new orders Updated: December 10th, 2025 --> The dates are only an estimation at the date of update, specified above,…

Fix common issues

QR Error codes

QR Error codes

This is an advanced system for displaying error screens, providing more useful information to the user. In case of an issue, the printer will display the name of the error followed…

Print doesn't appear / Resin does not solidify

Print doesn't appear / Resin does not solidify

If the print does not appear on the printing platform, nor at the bottom of the resin tank, there are a couple of possible causes: Highly insufficient exposure times Old or separated…

Broken supports (SL1/SL1S)

Broken supports (SL1/SL1S)

Broken supports (or missing parts of supports) are usually caused by incorrect settings in the PrusaSlicer. The supports are either too thin or the exposure time is set to a value…

Community posts

Help for support structures, works with ASA not with PETG

Feb 27, 2026, 5:25:04 PM
2 replies

Learning mechatronics - Learning resources?

Feb 27, 2026, 5:21:28 PM
1 reply

Core One+ Upgrade?

Feb 27, 2026, 5:16:05 PM
4 replies

Different Z lead screw travel between MK4S upgrade screws and Core One kit — 2 mm mismatch

Feb 27, 2026, 5:15:56 PM
78 replies

2K Filament Storage Solution at HomeDepot

Feb 27, 2026, 5:13:58 PM
8 replies

1. Introduction

2. Disassembling the SL1

3. Upgrading to SL1S SPEED

4. Firmware upgrading

5. Calibrating the printer

6. First print

7. Manual changelog

Original Prusa SL1 to SL1S SPEED upgrade (v1.00)

7 chapters

Difficult