The Crossed Molecular Beams Machine was designed over a period of eight months; 320 drawings were prepared utilizing ACAD 2D and 3D modeling software. Kurt Lesker Company was contracted to build the Main Chamber, Rotating Platform, and Detector Housings. Smaller items such as supersonic sources (UHV laser ablation source, pyrolytic and photolytic sources), cold shields, HV insulation units, and electronics were done by the Chemistry Machine and Electronics Shop as well as by the Physics Machine Shop.