Write CFS tags, run any brand, track automatically

The Creality CFS filament manager that writes its tags

The Creality CFS reads NFC tags to know what's loaded. SimplyPrint writes those tags for you - so once a spool is written, the CFS recognizes it no matter whose filament it is. Manage every CFS spool in one inventory and let usage deduct itself as you print.

View NFC filament tags overview Get started for free More info & how-to
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Make the CFS work with any filament

Out of the box the CFS only really trusts tagged spools. SimplyPrint lets you write a CFS tag to any spool you own, so the box accepts your cheaper or specialty filament just as readily as branded rolls - and every one of them lands in a single, automatically-tracked inventory.

How Creality CFS NFC works

The Creality CFS uses MIFARE Classic tags, secured with AES keys derived from each tag's UID. SimplyPrint handles that key derivation for you, so writing a CFS-compatible tag is a single step rather than a cryptography project. Once written, the CFS reads the spool's identity on load and knows exactly what it's running.

How to use the Creality CFS with SimplyPrint

Three steps to make the box accept any filament you load.

Get MIFARE 1K tags

Grab blank MIFARE Classic 1K tags and add the spool to your SimplyPrint inventory.

Write the CFS tag

Write the tag from the SimplyPrint Android app or the desktop NFC Agent with a USB reader. SimplyPrint derives the CFS keys and maps the material and colour the box expects. iPhones can't write MIFARE tags.

Load it and go

Stick the tag on the spool and load it into the CFS. The box reads it and accepts it like an official roll, even for third-party filament, while usage deducts automatically.

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Map the material, then write

Pick the CFS material type and colour the box expects

When you write a CFS tag, SimplyPrint lets you map the spool to a material type and colour the box understands. If a material isn't a known CFS type, you'll see a clear compatibility note before writing - so the tag you encode is one the CFS will actually accept on load.

Write CFS tags from Android or your desktop

Because the CFS uses MIFARE Classic, you write its tags with the SimplyPrint Android app or the desktop NFC Agent and a PC/SC USB reader. iPhones can't write MIFARE tags - that's an Apple hardware limitation, not a SimplyPrint one - so reach for Android or the desktop NFC Agent for CFS spools.

About the desktop NFC Agent

Create CFS tags the box reads, even for third-party spools

Using third-party, non-Creality spools? Create RFID tags with SimplyPrint that the Creality CFS can actually read. Once you write a CFS tag, the box recognizes that spool regardless of filament brand, so you're free to run whatever PLA, PETG or specialty material you like and still get proper identification and tracking.

Usage tracked automatically

SimplyPrint deducts filament as you print, analyzing the G-code and subtracting grams from the assigned spool when the job ends. Combined with CFS tag writing, every spool you load is both recognized by the box and kept accurate in your inventory, with no scale involved.

How automatic tracking works

Every CFS, one inventory

Running several Creality printers with CFS units? SimplyPrint rolls every CFS slot across every printer into one live inventory you can search, group and filter - so you always know which box holds the filament you need before you start a job.

Creality CFS multi-material

Plan access: what's included?

Reading CFS tags and the filament manager are on every plan. Writing CFS tags uses your monthly NFC-write allowance.

Feature / Limit Free Basic Pro Print Farm Enterprise School Cloud Slicer Filament Manager
Filament manager
Spool records and automatic usage deduction, on every plan including Free.
NFC tag writes per month
How many NFC tags you can write to spools each month.
10 30 100 10

Want to learn more about our plans?

View full pricing & feature comparison

Frequently asked questions

Add a spool, write a MIFARE Classic 1K tag from the SimplyPrint Android app or the desktop NFC Agent, then stick it on the spool and load it. The CFS reads the tag and accepts any brand, and usage tracks automatically.
From an Android phone, yes. From an iPhone, no - CFS tags are MIFARE Classic, which Apple's NFC hardware can't write. Use the SimplyPrint Android app or the desktop NFC Agent with a USB reader.
Yes. Once a tag is written, the CFS recognizes that spool regardless of filament brand, so you can run any material you like.
The CFS uses MIFARE Classic 1K tags. Buy blank MIFARE Classic 1K stickers or cards and write them with SimplyPrint on Android or the desktop NFC Agent.
The CFS uses AES keys derived from each tag's UID. SimplyPrint handles that derivation for you, so writing a working CFS tag is a single step.
Yes. Writing the tag handles identification; automatic G-code-based deduction keeps the remaining weight accurate as you print.

Compatible Creality CFS hardware

Writing CFS tags from desktop needs a USB reader and the free SimplyPrint NFC Agent (Windows, macOS, Linux). The CFS uses MIFARE Classic 1K tags - buy blanks and write your own.

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