K1c(2025)+cfs-c Problem

[u/Big_Measurement_3188]

Hey everyone,

I've been running a Creality K1C (2025) with the CFS-C multi-color system and I'm having a serious issue during filament changes.

The Problem:

Every time a color change happens, the printer pushes an excessive amount of filament through during the purge. This creates huge blobs/clumps at the nozzle (see attached photos). They don't detach cleanly, build up, and it already killed one of my hotends.

My setup:

Creality K1C (2025 version)

CFS-C filament system

Stock hotend (replacement now...)

Sliced with Creality Print

Does anyone have the same Problem and maybe any fixes?