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SLC Forge Studio

3D Printing Tools & Android Apps

Simple, fast, and practical Android apps built for makers and 3D printing enthusiasts.

Download Filament Tracker Free

Free • No account required • Built for real 3D printing workflows

Featured Apps

Filament Tracker – Track Your Filament Like a Pro

Track 3D printing filament inventory, manage spools, monitor usage, and keep your materials organized with a clean, practical interface.

View Details Download

STL Viewer for Android

Open and view STL and 3MF files directly on your phone. Fast, simple, and designed for mobile 3D model inspection.

View Details Download

Available on Google Play

Download current apps and follow updates as more tools are released.

View Developer Page

Why Use These Apps?

Designed for real 3D printing workflows
Fast and easy to use on mobile devices
Clean, modern interface
Focused on practical everyday use

More Tools Coming

I’m actively building more Android tools for 3D printing, customization, and practical everyday use.

How to Track 3D Printer Filament (Best Methods + Free App)

3D Printing Tools & Android Apps

Simple, fast, and practical Android apps built for makers and 3D printing enthusiasts.

If you’ve been 3D printing for a while, you already know how quickly filament can pile up. Between different brands, materials, and colors, it becomes surprisingly difficult to keep track of what you have—and how much is left.

In this guide, we’ll break down the best ways to track your 3D printing filament and show you a simple solution that makes it effortless.

Why Tracking Filament Matters

Keeping track of your filament isn’t just about organization—it actually improves your printing workflow.

Avoid running out of filament mid-print
Know exactly how much material you have left
Reduce wasted filament
Plan prints more accurately
Keep your workspace clean and organized

Common Ways to Track Filament

1. Spreadsheets

Many makers start with a simple spreadsheet to track their filament inventory.

Pros:

Free and customizable
Easy to set up

Cons:

Manual updates required
Easy to forget to log usage
Not convenient while printing

2. Notes and Labels

Some people use physical labels or notes on spools to track usage.

Pros:

Quick and simple

Cons:

Hard to keep consistent
No centralized tracking

3. Memory (Not Recommended)

Trying to remember what you have might work at first—but it quickly becomes unreliable as your collection grows.

The Better Solution: Use a Filament Tracking App

As your filament collection grows, the best solution is to use a dedicated tracking tool designed specifically for 3D printing.

A good filament tracker should allow you to:

Track filament brands, materials, and colors
Monitor remaining grams per spool
Organize filament by location (printer, storage, dryers)
Log print usage automatically
Quickly add new filament using barcode scanning

Introducing Filament Tracker (Android)

To solve this problem, I built a simple Android app called Filament Tracker.

It was designed to be fast, easy to use, and focused specifically on real-world 3D printing workflows.

Track all your filament in one place
See remaining grams and spool status instantly
Organize filament by printer, dryer, or storage
Scan barcodes to add filament quickly
Log prints and track usage history

Download Filament Tracker on Google Play

Final Thoughts

Tracking filament doesn’t have to be complicated. Whether you’re managing a few spools or a full workshop, having a system in place can save time, reduce waste, and improve your printing experience.

If you’ve been relying on spreadsheets or notes, switching to a dedicated filament tracking app can make a big difference.

Give it a try and see how much easier it makes your workflow.

Terms and Conditions for App Icons

3D Printing Tools & Android Apps

Simple, fast, and practical Android apps built for makers and 3D printing enthusiasts.

Terms and Conditions

Effective Date: April 10, 2026

These Terms and Conditions ("Terms") apply to mobile applications published by SLCMotor, including icon pack, wallpaper, and Android theming applications ("Apps," "App," "Service," "we," "our," or "us"). By downloading, installing, or using any of our Apps, you agree to these Terms.

1. Use of the Apps

Our Apps are provided for personal, non-commercial use unless we clearly state otherwise. You agree to use the Apps only in compliance with applicable laws, platform rules, and these Terms.

2. License

We grant you a limited, non-exclusive, non-transferable, revocable license to use the Apps for your personal use on devices you own or control, subject to these Terms.

You may not:

Copy, reproduce, redistribute, resell, or republish App content except as permitted by law.
Modify, decompile, reverse engineer, or attempt to extract source code except where allowed by applicable law.
Use our Apps, artwork, icons, wallpapers, branding, or other content for unauthorized commercial purposes.
Upload, mirror, or redistribute paid or premium content without permission.

3. Intellectual Property

All icons, graphics, wallpapers, app designs, branding, text, and other content made available through our Apps are owned by or licensed to SLCMotor and are protected by intellectual property laws.

Your use of the Apps does not transfer ownership of any intellectual property rights.

4. App Features and Compatibility

Our Apps are designed to work with supported Android launchers, wallpaper systems, and related customization tools. Compatibility may vary depending on device manufacturer, Android version, launcher support, third-party app changes, or other technical limitations.

We do not guarantee that every feature will work on every device, launcher, or Android version.

5. Wallpapers, Icons, and Theming Content

The Apps may allow you to browse, apply, save, or request icons and wallpapers. All such content is provided for lawful personal use only. You may not claim our content as your own or redistribute it without permission.

6. Icon Requests and User Communications

Some Apps may include optional support or icon request features. If you choose to use them, you are responsible for the information you submit. By sending an icon request or contacting us, you grant us permission to review that submission for support, design, and compatibility purposes.

We do not guarantee that any requested icon will be created, released, or delivered within any specific timeframe.

7. Purchases, Donations, and Billing

Some Apps may include optional donations or purchases processed through Google Play or another authorized platform. All billing, refunds, cancellations, and payment handling are subject to the terms and policies of the platform through which the transaction is made.

Unless required by law or platform policy, donations are voluntary and non-refundable.

8. Third-Party Services

Our Apps may rely on third-party services, platforms, launchers, hosting providers, email apps, app stores, or content delivery services. Your use of those third-party services may also be governed by their own terms and privacy policies.

We are not responsible for third-party apps, launcher behavior, store policies, or service interruptions outside our control.

9. Acceptable Use

You agree not to:

Use the Apps in a way that interferes with their normal operation.
Attempt to bypass security, licensing, donation, or access controls.
Use the Apps to violate the rights of others.
Use our content in a misleading, unlawful, or abusive manner.

10. Updates and Changes

We may update, change, suspend, or discontinue any App feature, content, or support offering at any time without prior notice. We may also update these Terms from time to time. Continued use of the Apps after changes are posted means you accept the updated Terms.

11. Disclaimer of Warranties

The Apps are provided on an "as is" and "as available" basis. To the fullest extent permitted by law, we make no warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, non-infringement, availability, compatibility, or error-free operation.

12. Limitation of Liability

To the fullest extent permitted by law, SLCMotor shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, profits, goodwill, device functionality, or business interruption arising from or related to your use of the Apps.

Your use of the Apps is at your own risk.

13. Termination

We may suspend or terminate access to any App or feature if necessary to protect the integrity of the Service, comply with legal obligations, or respond to misuse. You may stop using the Apps at any time by uninstalling them.

14. Governing Platform Rules

If you download our Apps through Google Play or another app marketplace, your use of the Apps is also subject to that marketplace's applicable terms, policies, and rules.

15. Contact

If you have questions about these Terms and Conditions, you can contact us at slcmotorstats@gmail.com.

Terms and Conditions for Filament Tracker

3D Printing Tools & Android Apps

Simple, fast, and practical Android apps built for makers and 3D printing enthusiasts.

Terms and Conditions for Filament Tracker

Effective date: April 10, 2026

These Terms and Conditions apply to the Filament Tracker app provided by SLCMotor.

By downloading or using Filament Tracker, you agree to these Terms and Conditions. If you do not agree, please do not use the app.

Use of the App

Filament Tracker is intended to help users organize filament inventory, track spools, log usage, and manage related data.

You agree to use the app only for lawful purposes and in a way that does not interfere with the app’s functionality or other users.

User Data

You are responsible for the data you enter into Filament Tracker, including filament records, spool information, notes, codes, tags, and backups.

SLCMotor is not responsible for data loss caused by device issues, user actions, app removal, failed backups, or third-party storage problems.

Backups and Restores

The app may provide export, import, backup, and restore features. You are responsible for maintaining your own backups if you want to preserve your data.

SLCMotor does not guarantee that backups, restores, exports, or imports will always be successful in every situation.

Permissions and Device Features

Some features of Filament Tracker may #ffffff device permissions or supported hardware, such as:

Camera for barcode and QR scanning
NFC for supported tag reading and writing
Vibration for feedba#ffffff

If your device does not support a feature or permission is denied, some parts of the app may not function as intended.

In-App Purchases

Filament Tracker may offer optional in-app purchases through Google Play, such as Premium unlocks or support tips.

All billing, payments, #ffffff, and purchase processing are handled according to Google Play’s terms and policies.

Intellectual Property

All rights, title, and #fffffft in Filament Tracker, including its design, branding, text, graphics, and software, remain the property of SLCMotor unless otherwise stated.

You may not copy, modify, distribute, reverse engineer, or attempt to extract the source code of the app except as permitted by applicable law.

No Warranty

Filament Tracker is provided on an “as is” and “as available” basis without warranties of any kind.

SLCMotor does not guarantee that the app will always be error-free, uninterrupted, secure, or compatible with every device or launcher setup.

Limitation of Liability

To the fullest extent permitted by law, SLCMotor will not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of Filament Tracker.

This includes, but is not limited to, data loss, device issues, backup failures, inventory tracking errors, or purchase-related issues handled by third-party services.

Changes to These Terms

SLCMotor may update these Terms and Conditions from time to time. Updated terms will be posted on this page with a revised effective date.

Contact

If you have questions about these Terms and Conditions, you can contact SLCMotor through the developer contact information listed on Google Play.

Privacy Policy for Filament Tracker

3D Printing Tools & Android Apps

Simple, fast, and practical Android apps built for makers and 3D printing enthusiasts.

Privacy Policy for Filament Tracker

Effective date: April 10, 2026

Filament Tracker is provided by SLCMotor as a free app with optional in-app purchases.

This Privacy Policy explains how the app handles information when you use it.

Information Stored by the App

Filament Tracker stores app data on your device, such as:

filament brands, materials, colors, tags, notes, and codes
spool details such as remaining grams, cost, purchase date, and location
print history and usage logs
custom settings, color presets, and dryer presets
NFC tag data you choose to read or write

Filament Tracker does not require account creation to use the app.

Permissions Used

Filament Tracker may request access to:

Camera to scan barcodes and QR codes
NFC to read and write supported NFC tags
Vibration for scan and NFC feedback
Billing for optional Google Play in-app purchases

These permissions are used only for related app features.

Backups and Exports

The app includes backup and restore features. If you choose to export a backup, the file is saved to the location you choose.

Android system backup features may also back up app data depending on your device and Google backup settings.

In-App Purchases

Optional purchases are processed by Google Play. SLCMotor does not receive your full payment card information.

Advertising and Analytics

Filament Tracker does not include third-party advertising SDKs.

Filament Tracker is not designed to collect personal information for analytics or marketing purposes.

Data Sharing

SLCMotor does not sell your personal information.

App data generally remains on your device unless you choose to export it or restore it through Android or app backup features.

Children’s Privacy

Filament Tracker is not directed to children under 13. SLCMotor does not knowingly collect personal information from children under 13.

Changes to This Policy

This Privacy Policy may be updated from time to time. Changes will be posted on this page with an updated effective date.

Contact

If you have questions about this Privacy Policy, you can contact SLCMotor through the developer contact information listed on Google Play.

Best STL Viewer App for Android (Fast, Free, Offline)

3D Printing Tools & Android Apps

Simple, fast, and practical Android apps built for makers and 3D printing enthusiasts.

STL Viewer for Android – Open and View 3D Models (STL & 3MF Files)

I’m excited to share my newest Android app, 3D Model Viewer, a fast and simple way to open STL and 3MF files on Android.

If you work with 3D printing models, download files from sites like Thingiverse or Printables, or just want a quick way to preview models on your phone, this app makes it easy.

What is 3D Model Viewer?

3D Model Viewer is a lightweight STL viewer for Android designed to quickly open and inspect 3D printing files.

You can use it to:

view STL files on Android
open 3MF files directly from your device
preview models before 3D printing
inspect mesh geometry on the go

Key Features

Open STL and 3MF Files

Load files directly from your device including both binary and ASCII STL formats, as well as basic 3MF support.

Touch-Friendly 3D Viewer

Rotate with one finger
Pan with two fingers
Pinch to zoom

Smooth and intuitive controls designed for mobile use.

Shaded and Wireframe Modes

Switch between solid shading and wireframe view to inspect model geometry and mesh structure.

Model Information

View useful details such as:

triangle count
file size
model bounds
units (when available)

Recent Files and Demo Models

Quickly reopen recently viewed files or explore built-in demo models.

Theme Options

Choose between:

System
Dark mode
Light mode

Why Use an STL Viewer on Android?

Being able to open STL files on your phone is useful when:

checking models before printing
reviewing files away from your computer
browsing downloaded 3D models
quickly verifying geometry and scale

3D Model Viewer makes this process fast, simple, and portable.

Version 1.0.0 Features

STL support (binary and ASCII)
Basic 3MF mesh support
Wireframe viewing mode
Recent file history
Built-in demo models
Help and About section
Optional Google Play tip support

Download STL Viewer for Android

Try it on Google Play:

👉 Download 3D Model Viewer on Google Play

Feedback and Updates

I’ll continue improving the app and adding new features over time.

If you try it out, I’d love to hear your feedback.

Introducing FilamentTracker Live Spool

A Raspberry Pi-powered spool scale, NFC/RFID station, touchscreen dashboard, and hardware companion for the FilamentTracker Android app.

FilamentTracker Live Spool turns a Raspberry Pi into a dedicated workstation for weighing filament spools, reading NFC and RFID tags, displaying live spool information, and communicating with the FilamentTracker Android app over a local network.

It is designed as an addition to FilamentTracker—not a replacement for it. The FilamentTracker Android application remains the primary inventory system where spool details, materials, colors, locations, remaining filament, notes, and history are managed.

Live Spool acts as the physical hardware station that connects the digital inventory to the actual spool sitting on the scale.

Important: Live Spool does not maintain a second filament inventory database. FilamentTracker remains the source of truth, while Live Spool provides live weight and tag information.

What Live Spool Can Do

Display the live weight of a filament spool.
Read FilamentTracker NFC tags.
Read supported Bambu Lab RFID tags.
Write and verify compatible NFC spool tags.
Logically erase compatible writable NFC tags.
Receive temporary NFC write sessions initiated from the Android app.
Combine live scale readings and NFC tag data into one current-spool view.
Provide a touchscreen dashboard designed for a dedicated 7-inch display.
Provide calibration, diagnostics, settings, and hardware-status screens.
Communicate with FilamentTracker Android and FilamentTracker Server through a local REST API.

Designed to Work with FilamentTracker

The main purpose of Live Spool is to make managing filament easier inside the FilamentTracker ecosystem.

A spool can be placed on the scale and identified using its attached NFC tag. Live Spool can then display information such as the brand, material, color, tag identification, and current measured weight.

The FilamentTracker Android app can also send spool information to Live Spool and start a temporary NFC writing session. The user simply presents a compatible tag to the reader, and Live Spool writes the spool data, verifies the tag, and returns to the main dashboard.

This creates a simple physical workflow for assigning and identifying filament spools without moving the inventory itself away from the Android app.

Touchscreen Dashboard

Live Spool includes an appliance-style touchscreen interface designed around a 7-inch, 1024 × 600 display.

The dashboard presents the current spool weight, detected tag information, filament details, scale status, NFC status, and other useful information without requiring a keyboard or mouse.

FilamentTracker Live Spool touchscreen dashboard

Technician and Settings Interface

A hidden technician menu provides access to diagnostics, scale calibration, NFC tools, display settings, network information, system controls, and project information.

The interface is designed to feel like a dedicated appliance rather than a standard Raspberry Pi desktop.

Technician menu and maintenance tools

Hardware

The current tested Live Spool appliance uses:

Raspberry Pi 5
64-bit Raspberry Pi OS
ELECROW 7-inch 1024 × 600 touchscreen
PN532 NFC reader operating in I²C mode
NAU7802 load-cell analog-to-digital converter
5 kg four-wire load cell

Software support is also included for the HX711 load-cell interface, along with mock hardware for development and testing on Linux systems.

Completed Live Spool scale and touchscreen appliance

NFC and RFID Support

Live Spool uses a PN532 reader to communicate with compatible NFC tags. FilamentTracker tags can contain information such as:

Spool identification
Filament identification
Brand
Material
Color name
Color value
Initial filament weight
Last recorded remaining weight
Last update time

Live Spool can compare the last weight saved to the tag with the current scale measurement, making it possible to identify when the physical spool weight has changed.

Supported Bambu Lab RFID tags can also be read for spool identification. Bambu RFID functionality is currently read-only and depends on successful tag authentication.

Accurate Spool Weighing

The built-in calibration wizard walks the user through removing all weight, taring the scale, placing an accurately known calibration weight, entering its mass, and verifying the result.

Calibration information is stored separately from the application so it can be preserved when the software is updated.

Scale accuracy ultimately depends on the quality of the load cell, mechanical construction, mounting, wiring, and calibration.

Inside the Appliance

The PN532 NFC reader and NAU7802 scale interface share the Raspberry Pi’s I²C bus. This allows the system to read the physical spool weight and the attached tag through a compact hardware installation.

NAU7802 scale interface and PN532 NFC wiring

Local Network Integration

Live Spool provides a local REST API that allows FilamentTracker Android and FilamentTracker Server to retrieve:

System and hardware status
Current scale weight
NFC reader and tag status
Combined current-spool information
Scale calibration status

The API also supports temporary NFC write sessions, compatible tag erase operations, and scale-calibration controls.

Network notice: Live Spool is intended for a trusted home or workshop network. Its API should not be exposed directly to the Internet or made publicly accessible through port forwarding.

Current Development Status

Live Spool is an actively developed addition to the FilamentTracker project. The Raspberry Pi 5 is currently the primary tested platform.

Future development plans include:

Additional Raspberry Pi and display validation
Improved guided hardware setup
Expanded Android and FilamentTracker Server integration testing
Published enclosure and build plans
Additional appliance photographs and documentation
Improved upgrade and rollback support
Packaged software releases

A Physical Companion for Digital Filament Management

FilamentTracker Live Spool brings physical spool identification and measurement directly into the FilamentTracker workflow.

Instead of manually identifying a spool, estimating its remaining weight, or maintaining another separate inventory, the user can place the spool on the station, scan its tag, and work with the same information already managed by FilamentTracker.

The goal is to create a practical, dedicated tool for makers who want better visibility into their filament inventory while keeping FilamentTracker Android at the center of the system.

Project Information

Project: FilamentTracker Live Spool

Companion application: FilamentTracker Android

Primary platform: Raspberry Pi 5

License: MIT

FilamentTracker Live Spool is an independent interoperability project. FilamentTracker and Bambu Lab names belong to their respective owners.

Filament Tracker for 3D Printing – Track Filament Inventory, Spools, and Usage (Android)

3D Printing Tools & Android Apps

Simple, fast, and practical Android apps built for makers and 3D printing enthusiasts.

Download Filament Tracker Free

Filament Tracker Android app showing filament spool tracking, barcode and NFC scanning, and tools to manage 3D printing filament inventory.

Filament Tracker for 3D Printing – Track Filament Inventory, Spools, NFC Tags, and RFID Filament Data

Filament Tracker v1.0.4 is now available on Google Play with major NFC, TD1S, and Bambu RFID improvements for makers.

I’m excited to share the latest version of Filament Tracker, available now on Google Play.

If you enjoy 3D printing, you already know how quickly filament starts to pile up. Different brands, materials, colors, partially used spools, storage bins, dryers, and printer assignments can get difficult to manage fast.

That’s exactly why I built Filament Tracker.

What Is Filament Tracker?

Filament Tracker is an Android app designed to help makers organize and manage their 3D printing filament inventory in one place.

Whether you have a few favorite spools or a full shelf of materials, Filament Tracker helps you keep track of:

what filament you have
where it is stored
how much is left
what it cost
when it was purchased
how much you are actually using
which spools belong to which filament profiles

Key Features

Filament and Spool Tracking

Track filament by brand, material, color, and spool count. Add multiple spools to the same filament and monitor remaining grams over time.

Barcode, QR, NFC, and RFID Support

Quickly add filament by scanning a barcode or QR code. Read and write Filament Tracker NFC tags for faster filament matching and spool setup. The app can also read supported Bambu Lab RFID filament tags and import useful filament details into the create filament flow.

Bambu Lab RFID Tag Reading

Scan supported Bambu filament RFID tags to detect the tag, preview parsed filament information, and prefill brand, material, color, and tag UID into the app. Unsupported RFID and NFC tags are handled gracefully with a clear message.

TD1S Exact Color Integration

Optionally connect a BIQU/AJAX TD1S over USB to read measured filament color before writing NFC tags or creating a filament profile. The app can use the measured hex color in the NFC payload or update the saved filament profile with the TD1S color and TD value.

Inventory Management

Organize spools by Printers, Filament Dryers, and Storage locations. Move spools between locations with a simple workflow.

Print Calculator and Print History

Estimate filament usage before printing, log grams used, and keep spool totals accurate. View past prints and undo usage when needed.

Expanded Filament Catalog

The built-in catalog includes a large selection of brands, materials, and colors to help speed up filament setup.

Material Definitions and Dryer Presets

View helpful material reference information and drying guidance for common filament types.

Low Stock and Favorites

Quickly see when spools or filaments are running low. Mark favorite filaments so the colors and materials you use most are easier to manage.

Filament Tags, Purchase Dates, and Notes

Track useful details like filament tags, spool purchase dates, notes, and TD values to keep your inventory more organized.

Stats and Insights

View useful collection stats including spool totals, inventory by location, and low stock counts.

Backup and Restore

Export and import your data so your collection stays safe and easy to restore.

What’s New in Version 1.0.4

Added optional TD1S color scanning for NFC and filament setup
Use BIQU/AJAX TD1S measured color when writing NFC tags
Added TD1S exact color option to Create Filament
Added option to update saved filament color from TD1S
Improved TD1S USB detection, permission flow, and diagnostics
Added Bambu Lab RFID tag read support in Create Filament
Scan supported Bambu filament tags to prefill brand, material, color, and tag UID
Added Bambu tag preview with parsed filament details before import
Improved unsupported RFID and NFC tag handling with clearer messaging
Better TD1S guidance, UI polish, and stability improvements

Why I Built It

I wanted something that was:

fast and easy to use
clean and modern
practical for real hobby 3D printing
focused on actually keeping filament inventory accurate

So I built it for myself, and now I’m sharing it with other makers too.

Feedback and Support

I’m continuing to improve Filament Tracker and add useful features over time.

If you try the app, I’d love to hear your feedback.

Thanks for checking it out, and happy printing.