+ Self-aware filament. Let every spool tell your printer and
+ slicer what it is and how it should be used. Automatic setup. Fewer mistakes.
+
+
+
+
+## For people who print
+
+### Why does filament need an RFID tag?
+
+An RFID tag gives every spool a digital identity. It carries the filament's
+material, color, recommended settings, and other useful details. Compatible
+printers and slicers can read that information automatically, so you spend less
+time adjusting profiles, catch incompatible settings before a print starts,
+and keep your filament organized.
+
+
+
+
+
+#### Save Time
+
+Your spool can provide its configuration and profiles for you. Change materials
+or colors without manually changing your print settings.
+
+
+
+
+
+#### Make Less Mistakes
+
+Your printer can warn you when your settings fall outside the filament's
+specifications, helping catch errors that could cause a print to fail before it
+starts.
+
+
+
+
+
+#### Be More Organized
+
+Every tag identifies its spool, including details such as color, material, and
+serial number. Use that information for inventory and organization that ties
+directly into your printers.
+
+
+
+
+
+### What can it enable?
+
+OpenTag3D is a standard, not a single app or product. It gives projects a common
+set of data they can use to build features such as:
+
+- **Automatic slicer profiles:** Load settings from the filament instead of
+ finding and entering them by hand.
+- **Inventory management:** Identify each spool uniquely and keep its material,
+ color, and other details together.
+- **Automatic dryer settings:** Select an appropriate temperature and duration
+ for the material, reducing the risk of a drying mistake.
+- **Filament-remaining estimates:** Use the tag as a rotation marker and combine
+ it with the stored core diameter, or weigh the spool and subtract the stored
+ empty-spool weight.
+
+> [!NOTE]
+> These are capabilities the standard makes possible. Availability depends on
+> the printer, slicer, accessory, or community project you use.
+
+### I’m sold. How do I start?
+
+#### 1. Use filament and projects that already support OpenTag3D
+
+This is the easiest route: buy a tagged spool, then use it with a compatible
+printer, accessory, slicer, or community project. See the current
+[supporters and implementation status](/about#supporters).
+
+#### 2. Write your own tags
+
+Buy compatible NFC tags, enter the spool information in
+[Make a Tag](/make), and write the result using one of the methods below. The
+specification is designed around **NTAG215** tags; **NTAG216** tags are also
+supported.
+
+Some filament companies provide a lookup that fills in product data for you:
+
+- [Polar Filament](https://pfil.us/rfid)
+
+If the manufacturer does not offer a lookup, you can enter the information
+yourself.
+
+##### With a phone (recommended)
+
+- **Android:** Open [Make a Tag](/make) in a [Web NFC-compatible browser](https://caniuse.com/webnfc). You can
+ create, read, and write a tag directly from the page.
+- **iPhone:** A native app is required. OpenTag3D-compatible iPhone apps are in
+ development, but none are available yet.
+
+###### OpenTag3D phone apps
+
+| Platform | Available apps |
+| -------- | ------------------------------------------------------------ |
+| Android | None yet. Use the [Web NFC tag tool](/make) in the meantime. |
+| iPhone | None yet. |
+
+Building an app? Let us know so it can be added here.
+
+##### With a computer (advanced)
+
+- **NFC Tools Desktop:** Use a USB NFC reader such as the ACR122U (typically
+ around $30) to read and write tags. Follow Polar Filament’s
+ [OpenTag3D NFC Tools guide](https://pfil.us/opentag3d.php).
+- **Proxmark3:** Use this popular RFID development toolkit with the Proxmark3
+ export provided by [Make a Tag](/make).
+
+##### With a Flipper Zero
+
+The hardware is capable of reading and writing compatible tags, but the full
+OpenTag3D workflow is not finished yet. This is not currently a recommended
+getting-started path.
+
+## For developers
+
+OpenTag3D is openly documented and its source is available on GitHub. Start with
+the specification, then use the existing source and community projects as
+implementation references.
+
+
+
+The [reader implementation guidelines](/spec#reader-implementation-guidelines)
+cover the details most hardware and firmware integrations need first.
+
+## For manufacturers
+
+OpenTag3D is free to adopt. There are **no licensing fees, required vendors, or
+certification requirements**. You can source tags and readers entirely on your
+own, manufacture your own solution, and implement as much of the open standard
+as your product needs.
+
+There is no central service that your product must depend on. The essential
+filament data lives on the tag and works offline; optional web lookups can be
+hosted by the manufacturer or another provider. OpenTag3D is both open source
+and decentralized.
+
+Please feel free to [contact the project maintainers](/about#contact) to discuss implementation. We can walk through the getting-started documentation, answer integration questions, and help you avoid common hardware and data-format pitfalls.
diff --git a/index.md b/index.md
index 6e4e213..3a6c60b 100644
--- a/index.md
+++ b/index.md
@@ -9,13 +9,15 @@ header:
overlay_filter: "0.6"
overlay_image: /assets/images/background.jpg
actions:
+ - label: "Get Started"
+ url: "/getting-started/"
- label: "View Spec"
url: "/spec"
announcement: "[OpenTag3D v2.0](./articles/v2-already) is out now!"
caption: "Placeholder Background by [**morgaannn23**](https://wallpapercave.com/w/wp6945227)"
excerpt: "An open source standard for 3D printer filament RFID tags. Designed from the ground up for compatibility between printers, filament manufacturers, and accessories, implementation is simple and low-cost."
intro:
- - excerpt: "Proprietary locks you in. Open sets you free. — [Tim Berners-Lee](https://www.w3.org/People/Berners-Lee/)"
+ - excerpt: "Proprietary locks you in. Open sets you free. [Tim Berners-Lee](https://www.w3.org/People/Berners-Lee/)"
feature_row:
- title: "Low-Cost, Off-the-Shelf Hardware"
excerpt: "OpenTag3D uses standard NFC tags (NTAG215/216). These tags are readable and writable by smartphones, compatible with most off-the-shelf RFID/NFC readers (including low-cost PN532 modules), and require no proprietary hardware. This allows everyone, from corporations to hobbyists, to implement the standard into their applications, printers or accessories."