Inexpensive optical rail set up

Combining inexpensive components and 3D printed equipment, a simple optical rail set-up is used to give hands on experience with thin lenses. The optical rail is upside down Hot Wheels car track. It uses a 3D printed housing, lens holders and screen. All the lenes are 38mm diameter student grade optics. Both double convex and double concave lenses are used in the exercise. Optics track assembly and set up guide.John Potts, Saginaw Valley State University Physics Department. Glue the connectors to the appropriate anchors. They are keyed and fit one way. There are two different housings for each type of light. One has a 30mm square frame where an image with text is displayed. To keep in the spirit of the University, I used an image of the school mascot with PHYSICS text. The other is a set of arrows that help determine if the image is flipped or reversed. I created several of the logos and laminated the sheet. Cut around the outside box and insert into the frame. On the inside of the hou