Flexible "Remove Before Flight" key tag

My old fabric “REMOVE BEFORE FLIGHT” keytag was getting a bit tired when Prusa held a contest for innovative key tags. I decided it was time to replace it.

I wanted something printed in a sturdy plastic, but which would be flexible enough to not be uncomfortable in my pocket. I like a big loud keytag, because it's hard to miss.

I provide several different models:

1. A blank keytag, suitable for embossing with whatever text or graphics you desire using slicer tools. 
2. The keytag that embeds the text in the STL weave. To alter the text or graphics requires using OpenSCAD, but the advantage is a much stronger print that is less likely to allow the text to peal away.
3. A version of both with a larger hole for slipping into a D-clip (aka a Carabiner).

The model is optimized for a 0.4mm nozzle. If you are using a different nozzle width, adjust the nozzle_width parameter in the OpenSCAD model. I've basically found that a solid band 3 of 3 nozzle width interrupted by a gap of 2 nozzle widths provides an excellent balance of flexibility and strength.

NOTE: This model is best printed in PETG or TPU. It will print in PLA, but the print will be stiff and prone to breaking if flexed.