NFC Filament Sample Library

I have way too much filament, and at lot of those rolls have little-to-no information on them about the filament brand or suggested settings. When I run out of a filament that I like, I usually have to search through Amazon or Gmail to figure out exactly what I had ordered before. It's also easy to forget which colors or materials are available when the rolls are all stacked up in front of each other on the shelf.  This project intends to solve all of those problems, with clearly marked filament samples in a convenient storage tray. Each filament sample is backed by a Near Field Communication chip which contain an Amazon URL for the filament for easy reordering and identification. 

Peel and stick NFC tags are stupidly cheap at the moment, and modern phones can easily program and read the tags. I used the following NFC chips for this project:
https://www.amazon.com/gp/product/B0C49SVTCT/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1

These particular NFC chips are 25mm in diameter and 1mm thick.

I use the free NFC Tools app on the iPhone to program the chips with Amazon URLs. However, NFC chips hold a decent amount of text, so you could store brand info, preferred print settings, etc. in plain text as well.

The filament sample models should be printed with supports. As long as you have 3 top and 3 bottom layers set up in your slicer, infill is not an issue.  Each sample is about 1.5-2 grams of filament, so they print very quickly (generally 4-5 minutes on a Qidi X-Max 3). 

The filament samples folder contains models for most popular types of filament, as well as a blank chip for the more unusual filaments.

The tray can be printed at 5-10% infill. It holds 100 filament sample chips, so let the hoarding begin!