This is a remix of https://www.printables.com/de/model/539264-bambu-labs-p1s-p1p-iphone-holder
The original source was: https://www.printables.com/de/model/415654-bambu-labs-p1p-iphone-holder
You'll need two M3x8 (6 or 10 will work, too) countersunk Screws to mount the Iphone Holder https://www.printables.com/de/model/539264-bambu-labs-p1s-p1p-iphone-holder to the base.