UltiMaker Switch Bay (S Series) 80-133263

Replacement switch bay for UltiMaker S-series and UM3

The switch bay is a vital mechanical component located in the right-rear corner of the printer's interior. It facilitates the dual-extrusion process by physically toggling the lift mechanism within the print head. When the printer needs to switch between Print Core 1 and Print Core 2, the head travels to this bay to either lift the second core out of the way or lower it into the printing position. This precise mechanical "handshake" ensures that the inactive nozzle does not scrape against the printed object or interfere with the active extrusion path.

Because this part relies on physical contact with the print head's lift switch, it can eventually show signs of wear or mechanical fatigue. A worn switch bay may lead to "Print Core 2 not lowered" errors or issues with nozzle height consistency during dual-material prints. Replacing this unit restores the crisp, reliable switching action required for complex geometry and water-soluble support printing.

How it works:

• Switch pointing forward: The print core in slot 2 is lifted (inactive).
• Switch pointing backward: The print core in slot 2 is lowered (active).

Compatibility:

This switch bay is a standard component for the following dual-extrusion models:

• UltiMaker S7
• UltiMaker S5 (and S5 Pro Bundle)
• UltiMaker S3
• UltiMaker 3 and 3 Extended