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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

More on the ongoing stuck filament issue.

12/21/2025, 11:09:02 AM
6 replies

Extreme stringing with established profile-HELP

12/21/2025, 10:55:11 AM
5 replies

Ejecting during filament loading

12/21/2025, 10:20:37 AM
1 reply

Public Service Announcement: Vision Miner NANO Polymer Adhesive and BIQU Cryogrip Pro do not play nice together

12/21/2025, 9:58:21 AM
2 replies

Printables.com: Bug M870 Gcode

12/21/2025, 9:20:13 AM
4 replies