I designed this joy-con controller to be easier to print and use, not requiring any supports or Nintendo parts for the joy-cons. It was designed specifically for an iPhone 14 Pro Max with an Apple case installed, though it works with the few cases I have. The iPhone slides in the top and is held in place with a back brace and front rails.
I recommend PLA and the cool plate to avoid warping on the joy-con rails as this prints upside down.