This 3D Laser Positioning System (Readitec 3D LPS) is designed to facilitate modern radiotherapy and brachytherapy. Like the current linear LPS which projects X/Y/Z coordinates, the Readitec 3D LPS also has an iso-centered laser positioning system that can also be used to assist the positioning of angles. The Readitec 3D LPS maximizes working clearance while maintaining a compact size.