# K1C CFS without official Creality firmware: CFS protocol client and Klipper integration

> K1C CFS without official Creality firmware reconstructs part of the Creality CFS RS-485 control protocol so a K1C running a community Klipper stack can operate the filament box. Its Python client and Klipper extension cover discovery, addressing, sensors, RFID, filament feed and retraction; the combined toolchange macro remains unfinished.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/tomaspakosta/k1c-cfs-klipper>
- Primary source: <https://github.com/tomaspakosta/k1c-cfs-klipper/blob/127ed025d8e53ba3fbeeab8c7f4a1e0b3c60466e/README.md>
- Catalog page: <https://awesomerea.org/resources/k1c-cfs-klipper-case/>
- Record JSON: <https://awesomerea.org/resources/k1c-cfs-klipper-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/k1c-cfs-klipper-case/index.md)

## Requirements & limits

- **Prerequisites:** A K1C or similar printer with a CFS box and USB connection.
- **Prerequisites:** SSH/root access to the printer and Python with pyserial.
- **Limits:** The full cut and combined toolchange macros remain pending.
- **License:** GPL-3.0 license.

## Primary sources

1. <https://github.com/tomaspakosta/k1c-cfs-klipper/blob/127ed025d8e53ba3fbeeab8c7f4a1e0b3c60466e/README.md>
2. <https://github.com/tomaspakosta/k1c-cfs-klipper/blob/127ed025d8e53ba3fbeeab8c7f4a1e0b3c60466e/docs/PROTOCOL.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.