ThrustMaster Pro FCS Boot Retaining Ring

(UPDATE: Uploaded higher-res .STL file. FreeCAD decided to export using low-poly meshing for some reason.)

While the ThurstMaster FCS was the absolute pinnacle of joysticks until the ThrustMaster FLCS (no other joystick ever came close in quality), there was one flaw - the plastic ring that holds the rubber boot in place was prone to cracking over time. Literally every other part was made of metal, and as such this was the weak point. Sadly, ThrustMaster is long gone (Guillemot bought them