Revised version, considerably more robust against wind

README.md

@@ -4,7 +4,19 @@ Hybrid clip / carabiner 3D printable model to attach flags to the rope of a flag
 
 The gate of the carabiner does double duty as the lever of the clip.
 
+Spring mechanism inspired by [https://www.thingiverse.com/thing:1212828/remixes](https://www.thingiverse.com/thing:1212828/remixes)
+
 Since this was intended for outdoors use, I've printed this in PETG.
 
 ![](img/clip.jpeg)
 ![](img/flag.jpeg)
+
+## Revision History
+
+### 2022-05-15 Version 1.0	
+
+Initial Design
+
+### 2022-07-04 Version 2.0
+
+Substantial Revision. It turns out that even a moderate wind was enough to pull the flag off the pole with the initial design. This revision is considerably more robust to wind, though it still failed in a heavy thunderstorm.