Spektrum STX2 Wheel Cap

I have a Spektrum STX2 that controls a prop we rent, and I wanted to make sure our renters know which way to turn the wheel to make the prop do it's thing. So I created this snap-on cap that I drew up in Fusion and added an arrow identifying which way to turn the wheel.

I'm leaving it here in case anyone else simply wants to trick out their controller with their own logo or something. Both files are blanks (I have removed the arrow), so they are yours to decorate. There's an STL you can si