This purpose is to develop a mechanical interactive about food additives that are easy and interesting for children to use as well as adults.
The challenge was creating a mounted system with a track and pulley that self corrects after the interactive has been engaged.
A track system was used that telescopes over the surface. The track, pulley system, and counter weight for the interactive are concealed.
The housing is tight to the surface to prevent pinched or injured fingers when the system is engaged or resets.