UltiMaker Lift Switch Pack (UM3, S Series, F Series) 80-149923

Lift switch pack for UltiMaker S-series and UM3 dual extrusion

The lift switch pack is a precision mechanical assembly designed to maintain the automated switching functionality of the dual-extrusion print head. This mechanism is responsible for physically lifting the inactive print core during a print, preventing it from colliding with the part or leaking material onto the build surface. Over thousands of tool-changes, the internal switch arm and spring can lose tension or accumulate debris, leading to "Print Core 2 lifting" errors or inconsistent nozzle heights. Replacing these components with this genuine factory-spec pack restores the smooth, reliable transition required for complex multi-material 3D printing.

This comprehensive kit includes the high-wear internal rings and the critical tensioning spring, ensuring that the switching arm snaps into position with the exact force required by the printer's firmware. By maintaining a crisp switching action, you protect your professional-grade prints from surface defects and mechanical interference.

What is in the pack?

• Bottom ring: The lower housing that seats the mechanism within the print head block.
• Moving switch arm: The central pivot component that translates the horizontal movement of the printer's frame into vertical lift.
• Top ring: The upper locking component that secures the internal parts and provides the bearing surface for the print core.
• Metal Bowden output: A durable metal interface that guides the filament into the print core while providing structural support for the lift.
• Spring: A precision-calibrated tension spring that ensures the mechanism remains locked in either the "up" or "down" position.

Compatibility:

This lift switch pack is compatible with the following dual-extrusion models:

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

Note: While compatible with the S-series, the specific switch extension used in the Factor 4 print head is not included in this pack.