This is a Narcotics Anoymous Keytag. Can print in any color combo, and any amount of clean time.

It uses 25mm or 1 inch key rings. Here are some at Amazon: https://www.amazon.com/dp/B0C4KRYZ1W?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

I updated it to handle the M4x5mm Chicago Screws, by opening the screw/rivet holes a little bit. The Chicogo screws can be found on Amazon here: https://www.amazon.com/dp/B0CYZZTGF3?ref=ppx_yo2ov_dt_b_fed_asin_title

To change the Clean Time open the keytag.FCStd file in FreeCAD.

• Navigate to "Application | keytag | Cut001 | front_letters | Extrude004 |
  ShapeString004 | String"
• Change the "String" to the amount of clean time desired.
• Select "OK"
• Click on "Cut001" so it is highlighted
• Select "File | Export | STL Mesh (.stl .ast)"
• And then it is off to the slicer.

I like to print in mulitple colors, so the text indentation in highlighted, by printing a single layer of an offset color at the bottom of the text indentations.

The way I do mulitple colors in the "Cura" slicer is to:

• First open the stl file and slice it (it is most likely 4mm nozzle with 2mm layer hight)
• Navigate to Extensions | Post Processing | Modify G-Code | Add Script | Filament Change | Layer
• The numbers need to be "4, 5, 11, 12"
• Now Slice and "Save to Disk"
• While printing, it will pause and change filament, at the correct places to add one layer of the highlight color on each side of the text.