Filament Spool Labels - Snap-Fit

These snap‑on filament spool labels give your Bambu‑compatible spools a clean, permanent way to identify what’s loaded—no more forgotten stickers or mystery refills. They’re fully AMS and AMS Lite friendly, with a built‑in slot for Bambu RFID tags and a low‑profile design that never interferes with loading or unloading. Print them in multiple colors, snap them into place, and instantly upgrade your spool organization with labels that stay put and look great.

These are simple 3D printed filament spool labels. They are designed for Bambu spools, and similar compatible spools. 

• Snap on to Bambu-compatible spools
• Slot for Bambu RFID tags included
• Compatible with AMS and with AMS Lite

When I install my filament refills into my reusable filament spools, I sometimes forget to apply the sticker that identifies the type of filament. These labels are an easy way to keep track of what filament a spool contains. 

The primary print profile includes labels for the most popular Bambu Lab filaments. I will add other labels - including other brands - if there is interest. 

The following labels are included in the main print profile for Bambu spools:

[Update: I uploaded a blank label, so you can put any text you want on it. It is also the last plate in the print profile.]

These labels are intended for Bambu Lab reusable spools, and others that are compatible. Compatible spools will hold Bambu Lab filament refills. If you look at the center of the spindle, Bambu spools have a lip on one side. The other side is smooth. These labels are meant to snap onto the side with the lip. I have tested with the newer Sunlu spools, which are compatible with Bambu. I have also tested with some DIY 3D printed spools that claim to be Bambu compatible. Please check your own spools before printing. But the print only takes a little over 8 g of filament. So it isn't a big risk. 

If I make labels for other brands, I will need someone to test the label clip to make sure it attaches securely to those brands. 

A big factor for me: I wanted labels that would still work with the AMS and AMS Lite. These work fine. The AMS is no big deal because the AMS doesn't depend upon the center spindle of the spool. The AMS Lite is more difficult, as the rotary spool holder and spool claw go through the center of the spool. These labels work fine with AMS Lite. I am able to put spools on the AMS Lite, and remove them, with the labels attached. 

Although I did include a slot where Bambu RFID tags can be inserted, my purpose was not to make holders for RFID tags. Once inserted, the tags should hold pretty securely. However, given that these labels will only attach to one side of the spool (the side with a lip), you will need to take care to use your spool in an AMS position where the RFID tag can be read. 

There are no moving parts. The label should hold pretty securely just by snapping it into place. This depends upon having a filament that flexes just a little. PETG works great for this. My test with PLA also worked okay. Once the labels are in place, they won't flex much. So you should have good luck will essentially any rigid filament. 

These are multiple-color prints. As such they will print better with the AMS. Some purge waste is the inevitable result. I recommend printing multiple copies at the same time, as the amount of waste per unit is much less. 

This model was inspired by TigerTag.io's Best Clip RFID TigerTag Universal Filament Spools. I didn't use any of the geometry from that model. But I did receive a lot of inspiration from it. Thanks! I did borrow the shape of the RFID void from Lameen's AMS Lite RFID Adapter Holder. Those are both great models that I highly recommend.