Spool Maker

about

description

Spool Maker is a free Android app for the NFC spool tags used with UltiMaker 3D printers. UltiMaker filament spools use NFC tags (RFID) so the printer can identify material and spool information. With Spool Maker, you can read the data stored on these tags directly with an NFC-enabled Android device. The app is designed to read both original UltiMaker spool tags and tags written with Spool Maker. You can also create new UltiMaker-compatible spool tags on writable NTAG media. The original UltiMaker tags examined for this project are NTAG216. Spool Maker also supports writing NTAG215 tags; the 228-byte payload fits in their user memory as well. However, NTAG215 has not yet been tested by the project maintainer with an actual UltiMaker printer. Material profiles can be imported from Cura/UltiMaker .xml.fdm_material files and managed in a local material library. When writing a tag, you can select the material, total spool weight and remaining amount. For tags written by Spool Maker, the date field can also be assigned a meaning: manufactured, purchased, opened, created, or no date. When reading a tag, Spool Maker displays information such as the UID, material GUID, total and remaining amount, date/time information, batch and station data, and integrity information. For technical inspection, all decoded values and the raw tag data can also be viewed and copied. Before writing, the app checks the tag type and relevant lock and protection areas. After writing, the data is read back and verified so incomplete or failed writes can be detected. The app works entirely locally: no Internet permission, no account, no ads, no trackers and no telemetry. The supported tag format is based on independent analysis and reverse engineering of original UltiMaker NFC spool tags and selected printer firmware. Spool Maker is an independent community project and is not an official UltiMaker product. Compatibility may vary with printer model and firmware version.

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-10-04T20:43:34.837490+00:00

last event

2026-10-04 20:43 UTC

install

zapstore.dev or any Zapstore-compatible client

topics

#inventory

source & build

repository

https://github.com/joker-mik/SpoolMakerAndroid

arch flags

android-arm64-v8a android-armeabi-v7a android-x86 android-x86_64

manifest

missing

releases (kind 30063)

1 release indexed; latest 1.2.4.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.2.4 — de.spoolmaker.android_33.apk

sha256

5c521be8ca9ede98e902ce25ae36cb806b7487212b36d11c51b4e19688f416c4

size

1.8 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

33

apk cert sha256

61284f96a285d7af755f9a5593b786fd9b74686fa4616198efcee903c505d3eb

download

de.spoolmaker.android_33.apk

Showing the newest 1 asset descriptor; the full set is in /api/apps/78ce6faa…