This is a PS4 analog stick replacement part, use it with a silicone thumb grip for best results. Disassembling the PS4 controller is relatively easy, just follow a good video tutorial.

The hole depth from older designs are incorrect (too deep), causing the stick to get stuck during use. Also, the provided STL files were huge (50MB!), making it impossible to edit, and the lack of properly defined trigonometric dimensions causes it to not slice/print accurately.

Features:
-- Properly designed from scratch with correct dimensions.
-- Smooth action when sliding along the edge due to low friction (depends on your material, see print notes!).
-- Flat top for easier 3D printing without supports.
-- Proper hole sizing for plugging into the controller securely via friction fit.
-- Hole depth is set to 5mm (let me know if this is incorrect).
-- Provided STL/3MF files are tiny and easy to slice.

Recommended to be used with Skull & Co Thumb Grips, or whatever silicone thumb grips of your choice. These are better than the original rubber that deteriorate over time into a disgusting sticky mess.