Custom RFID keychain logo fob
thingiverse
Our makerspace is switching to a keyless entry system using 125 khz EM4100-compatible RFID tags. I wanted to design a 3D-printable custom keychain that incorporated our logo. These are the result! The fob is designed to printed with two pauses: one to insert the RFID tag and keychain, and the second to change filament colors. I'm rather pleased with the result! To make the fob as small as possible, I'm using [these 18 mm RFID tags from AliExpress](https://www.aliexpress.com/item/32847018449.html?spm=a2g0o.placeorder.0.0.5d23321eMCiVnu&mp=1) And [these keychains from Amazon](https://www.amazon.com/gp/product/B01LC39DYM/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1): However, the dimensions of both parts are included as parameters in the Fusion 360 model, so it should be easy to update to whatever size you require.
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