This is a three piece accessory; it is an adjustable holding dock for the OnePlus One. It should be able to hold the phone vertically or horizontally. In order to print these parts, I would suggest you do so with support. I do not have a 3D printer so I can't print out the part to test it out. I am aware that printers have certain printing tolerances. If anyone can print out the parts and let me know whether or not the pieces fit together, that would be great.I am also changing and trying different designs to see which one works better and looks better, any advice is greatly appreciated.