Articles on: Filament & materials

The QIDI material standard: NFC/RFID for the QIDI Box

NFC tags for QIDI Box in SimplyPrint


Got a QIDI printer with a QIDI Box? SimplyPrint lets you read and write NFC tags that work with your QIDI Box - whether you're using official QIDI filament or want to make any filament brand work with your setup. Connected through the SimplyPrint Client, the Box's slots also sync into SimplyPrint, and prints are mapped to them.


This article covers everything about using QIDI-compatible NFC tags with SimplyPrint. For a general introduction to NFC in 3D printing, hardware options, and step-by-step guides, see our main NFC article.



NFC support in SimplyPrint


SimplyPrint has deep NFC integration across our entire platform - both the web panel and mobile apps for iOS and Android. We support reading and writing NFC tags in multiple formats, allowing you to work with filament from various brands and make your spools work with different printer ecosystems.


What you can do with NFC in SimplyPrint:

  • Read NFC tags to instantly identify spools and see their details
  • Write NFC tags in various formats - QIDI, Creality, Anycubic, OpenPrintTag, OpenSpool, OpenTag, and more
  • Link physical spools to their "digital twin" in your filament inventory
  • Quickly assign spools to printers by scanning instead of scrolling through lists


How you can read and write NFC:

  • Mobile apps (iOS & Android) - most phones have built-in NFC, making this the easiest method
  • Desktop USB readers - for those who prefer working from their computer
  • Web NFC - some browsers support NFC directly (Android Chrome, for example)


Not all methods work with all tag types though - and that's where it gets a bit tricky. QIDI uses a specific tag format (MIFARE Classic) that has some limitations, which we'll cover below.


For the full breakdown of hardware options, supported methods, and step-by-step guides, check out our main NFC article.



What can SimplyPrint do with QIDI NFC tags?


With SimplyPrint, you can:


  1. Write QIDI-compatible NFC tags for any filament - stick them on your spools and your QIDI Box will recognize them, even if they're from Polymaker, eSUN, Prusament, or any other brand
  2. Link existing QIDI tags to your SimplyPrint inventory - if you buy QIDI filament that already has NFC tags, connect them to your digital spool library
  3. Quickly identify spools by scanning - no more guessing which spool is which when you have 50 of them


For hardware requirements and step-by-step instructions on reading/writing NFC tags, see our NFC hardware & methods guide.



How to put this into your workflow


Knowing how the tags work is one thing; folding it into how you actually run your filament is another. These workflow guides walk through it end to end:




Important: What SimplyPrint can and can't do with QIDI


Before diving deeper, here's what you need to know about the integration:


What works great


Your QIDI Box will recognize the tags - When you write QIDI-format tags via SimplyPrint, your QIDI Box reads them just like official QIDI filament. The printer knows the material type and color, and can apply the right settings.


Material and color sync from the Box, through the SimplyPrint Client - Connect your QIDI printer with the SimplyPrint Client (version 1.0.0-rc.24 or newer) and its QIDI integration does the rest:

  • each Box slot's material and color show up in SimplyPrint and stay in sync, along with the external spool,
  • when you start a multi-color print, SimplyPrint maps the print's colors to the Box's slots,
  • you can set a slot's material from SimplyPrint, and the printer takes it,
  • QIDI Box errors and an empty slot show up in SimplyPrint.


Fast spool identification - Scan any tagged spool with your phone (Android) or desktop reader to instantly see which spool it is in SimplyPrint. Way faster than scrolling through your inventory.


Good to know


The Box syncs through the SimplyPrint Client only - If your QIDI printer is connected to SimplyPrint through Klipper (Moonraker) instead, SimplyPrint can't see the Box or map filaments to it. The SimplyPrint Client is the way to connect a QIDI printer with a Box.


Which printers - The Client's QIDI integration is used on the QIDI Q2 and QIDI Plus5. The Plus4 and Max4 are expected to work the same way but haven't been tested yet.


No auto-create or auto-assign - The QIDI Box reports each slot's material and color, but no unique ID for the spool in it, so SimplyPrint can't tell which spool from your inventory is loaded. You link the inventory spool yourself - and with an NFC tag that takes seconds: scan the tag, tap assign, done. See Automatic spool creation when syncing materials for how this works on the systems that report a spool ID.


A tag the Box can't read - If the Box can't read a spool's tag, that slot shows as white PLA. Set its material and color by hand. On older QIDI firmware, setting a slot's material from SimplyPrint isn't possible; update the printer's firmware to use it.



About the QIDI standard


Now let's get into the details of how QIDI NFC tags work.


The QIDI material standard is a proprietary format developed by QIDI Technology for their QIDI Box. It's one of the simpler NFC formats out there - it stores just the basics - but it gets the job done.


Who made it?


QIDI Technology - the Chinese 3D printer manufacturer known for their enclosed printers like the Q2, Plus5, Max4 and the earlier X-Max and X-Plus series.


Official documentation


QIDI has published their RFID specification on their wiki:


There's also a community reverse-engineered implementation:


What printers use this?


Any QIDI printer that supports the QIDI Box multi-material system, such as the Q2, Plus4, Plus5 and Max4.



What data does a QIDI tag store?


The QIDI format is simple - it only stores three pieces of information:


What's stored

Description

Material type

Which material it is (PLA, PETG, ABS, etc.)

Color

The filament color

Manufacturer

Whether it's QIDI-branded or third-party filament


That's it! No weight tracking, no additional notes. It's basic, but it's enough for the QIDI Box to know what filament you're using.


Do I need to worry about material and color matching?


Nope! SimplyPrint handles all of this for you. When you write a QIDI tag, we automatically find the best matching material type and color from QIDI's supported options.


There are some limitations though - QIDI only supports around 35 material types and 24 specific colors. If you're using something exotic, we'll pick the closest match. For most common filaments (PLA, PETG, ABS, TPU, etc.) it works great.


Curious what materials and colors QIDI actually supports? Check out the Advanced: Supported materials and colors section at the bottom of this article.



What NFC tags does it use?


The QIDI standard only works with MIFARE Classic 1K tags. This is important - you can't just buy any NFC tag and expect it to work!


There are many different types of NFC tags out there, and QIDI picked one specific type for their system. If you buy the wrong kind, your QIDI Box simply won't recognize it.


Where to buy compatible tags


Look for "MIFARE Classic 1K" tags:



Affiliate link - we may earn a commission at no extra cost to you.


Make sure the listing says "MIFARE Classic 1K" specifically. Tags labeled "NTAG215", "NTAG216", or "MIFARE Ultralight" will not work with QIDI.



Compatible hardware


Because QIDI uses MIFARE Classic tags, not all devices can read and write them:


Method

Read

Write

Notes

SimplyPrint app (Android)

✅

✅

Full support

SimplyPrint app (iOS)

❌

❌

iOS can't handle MIFARE Classic

Desktop USB reader

✅

✅

Requires ACS reader + NFC Agent

Web NFC (browser)

❌

❌

Web NFC doesn't support MIFARE Classic


For detailed hardware options, setup instructions, and where to buy readers, see our NFC hardware & methods guide.



Why write QIDI tags via SimplyPrint?


So why bother writing QIDI tags through SimplyPrint instead of some other tool?


1. Use any filament brand with QIDI Box


The main benefit: you can make any filament work with your QIDI Box. Got a great deal on some eSUN PETG? Write a QIDI tag for it. Want to use that fancy Prusament Silk? Write a QIDI tag for it. Your QIDI Box doesn't care where the filament came from - it just reads the tag.


2. Keep your inventory in sync


When you write tags via SimplyPrint, the spool is already in your inventory. The tag gets linked automatically, so there's no disconnect between your physical spools and your digital inventory.


3. Smart material matching


SimplyPrint automatically maps your spool's material type and color to the closest QIDI equivalents. We handle all the translation between "eSUN PETG Solid Orange" and "QIDI material code 39, color code 23" behind the scenes.


4. Consistent workflow


Whether you're writing tags for QIDI, Creality CFS, Anycubic ACE, or any other standard, the process in SimplyPrint is the same. Learn it once, use it everywhere.



Limitations of the QIDI format


The QIDI format is functional but limited compared to some other standards:


Limitation

What it means

Limited colors

Only 24 colors to choose from - your exact shade might not be available

Limited materials

~35 material types - exotic materials might not have a match

No weight tracking

The tag can't store how much filament is left

No custom notes

Can't add batch numbers or other metadata

Specific tag type

Only works with MIFARE Classic 1K tags

No iOS support

iPhones and iPads can't read or write these tags

No per-spool ID

The Box syncs each slot's material and color, but can't tell SimplyPrint which inventory spool it is, so auto-create / auto-assign don't apply


If you need more flexibility - like exact color matching, weight tracking, or iOS support - consider using a community standard like OpenSpool or OpenTag for your non-QIDI filament. Your QIDI Box won't read those, but your SimplyPrint inventory will work great with them.



Advanced: Supported materials and colors


This section is for the curious - you don't need to know any of this to use QIDI tags with SimplyPrint. We handle the matching automatically. But if you want to see exactly what QIDI supports, here's the full list.


All supported material types


QIDI supports around 35 material types. Each has a numeric code that gets written to the tag:


PLA variants:

  • PLA, PLA Matte, PLA Metal, PLA Silk, PLA-CF, PLA-Wood, PLA Basic, PLA Matte Basic


ABS variants:

  • ABS, ABS-GF, ABS-Metal, ABS-Odorless


ASA variants:

  • ASA, ASA-AERO


Nylon/PA variants:

  • UltraPA, PA-CF, UltraPA-CF25, PA12-CF, PAHT-CF, PAHT-GF


PETG/PET variants:

  • PETG Basic, PETG Tough, PETG Rapido, PETG-CF, PETG-GF, PETG Translucent, PET-CF, PET-GF


Other:

  • PC/ABS-FR, PPS-CF, PVA, TPU, TPU-Aero


All supported colors


QIDI has a fixed palette of 24 colors. When writing tags, SimplyPrint automatically picks the closest match based on your spool's color.


Code

Color

Hex

1

White

#FAFAFA

2

Black

#060606

3

Silver

#D9E3ED

4

Neon Green

#5CF30F

5

Mint

#63E492

6

Blue

#2850FF

7

Pink

#FE98FE

8

Yellow

#DFD628

9

Green

#228332

10

Light Blue

#99DEFF

11

Deep Blue

#1714B0

12

Lavender

#CEC0FE

13

Lime

#CADE4B

14

Royal Blue

#1353AB

15

Sky Blue

#5EA9FD

16

Purple

#A878FF

17

Coral

#FE717A

18

Red

#FF362D

19

Beige

#E2DFCD

20

Medium Gray

#898F9B

21

Brown

#6E3812

22

Khaki

#CAC59F

23

Orange

#F28636

24

Dark Orange

#B87F2B



Quick reference


Standard name

QIDI (QIDI Box RFID)

Created by

QIDI Technology

License

Vendor-specific / proprietary

Official docs

https://wiki.qidi3d.com/en/QIDIBOX/RFID

Compatible printers

QIDI printers with QIDI Box

Required NFC tag

MIFARE Classic 1K

Android app

✅ Full read/write support

iOS app

❌ Not supported (hardware limitation)

Desktop reader

✅ With NFC Agent

Web NFC

❌ Not supported

Multi-material sync and mapping

✅ Through the SimplyPrint Client (Q2, Plus5)

Auto-create / auto-assign spools

❌ The Box reports no per-spool ID

Weight tracking

❌ Not supported by format



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Updated on: 13/11/2026

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