MAKE SURE TO PRINT AT 0.2 LAYER HEIGHT OTHERWISE IT WON'T BE ACCURATE
Use this to get pin heights from a tubular key. Red Team Tools sells this now, which is pretty cool.
Here's how to use it:
Then use this to model your own key: https://www.thingiverse.com/thing:2802287
The heights are from the OpenSCAD file, rounded for 0.2 layer height:
1 = 0.4
2 = 0.8
3 = 1.2
4 = 1.6
5 = 2.0
6 = 2.4
7 = 2.8
8 = 3.2
The author marked this model as their own original creation.