Photogate clamp for old style PASCO air track

A clamp to hold the photogate on the older PASCO air tracks. (Black plastic end caps) Students would bump into the photogates on the stands and have to reset the positions. The clamp secures the photogate to the air track.

I used nylon 1/4"-20 screws to attach the clamp to the air track frame to prevent any gouging from steel screws. 1/4"-20 nut are inserted to the slots.