a friend told me to post it here but honestly it's a bit of a hassle to print (due to it's shape) and to mount.
there's 2 parts, the bottom one is meant to replace the original dpad inside the controller, so be careful to open it, and the top part just snap on top once you put the controller together.
Other than that, it works well (especially for fighting games) but it could use some more friction and in regards to that since i didn't wanted to make it too tight, you could put a bit of tape where the parts fit together.
The author marked this model as their own original creation.