An adapter to make your PS4 DualSense controller into a flight stick. Features a novel compliant mechanism flexure for the hinge, and another flexure for the linkage from the stick to the controller's thumbstick.
The pieces go together with 3D printed screws, and pieces of filament used as pins.
This free version features the stick motion and associated linkages. In addition, the upgraded version has a working trigger and buttons. You can find it here: https://www.etsy.com/listing/1111894507/ps4-flexure-joystick The upgraded version is compatible with the pieces in this posting, so you can print this design first, and later upgrade to the full version.
Print all parts as oriented in the STLs. I used 0.2 mm layers, with 2 perimeters, in eSun PLA+, with default settings on an Ender 3 and a Prusa Mini. No supports are needed.