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© Prusa Research a.s.

Original Prusa CW1S support

Firmware 3.3.0

May 16, 2023

PrusaSlicer 2.7.3

April 18, 2024

Handbook 1.02

September 09, 2022

Useful links

CW1S Community Forum
CW1S Printable Parts
CW1S Spare Parts

Upgrade to CW1S from Original Prusa CW1

CW1 to CW1S Platform upgrade

CW1 to CW1S Platform upgrade

Fix common issues

Resin yellowing and how to reduce it

Resin yellowing and how to reduce it

When printing various resins, you may notice a more or less significant yellowing effect after curing your models. This affects most MSLA materials, including all of our Prusament…

Get started with CW1S

IPA pigment filter (CW1/CW1S)

IPA pigment filter (CW1/CW1S)

The Original Prusa Curing and Washing Machine (CW1/S) uses isopropyl alcohol (IPA) to wash the uncured resin around the print model before curing it. The resin usually leaves pigment…

Community posts

What is causing this and how to deal with it.

9/14/2025, 2:26:38 PM
13 replies

Filament humidity range

9/14/2025, 2:04:34 PM
29 replies

Self-test Y axis fail

9/14/2025, 1:30:41 PM
1 reply

Core One Assembly running out of M3x6 screws at putting the linear rail?

9/14/2025, 1:18:52 PM
1 reply

Core One kit Extruder stuck after successful test prints

9/14/2025, 1:03:51 PM
4 replies