Freeze Ray.
Goals
Design a device that uses the thermodynamic properties of pressurized difluoroethane (in Dust-Off cans) to make a wrist-mounted liquid difluoroethane sprayer
Contributions
Designed and prototyped the entire product
Completed four iterations of the design in order to achieve my own satisfaction
Results
The whole thing (including the moving arm) can be printed as one part, even on an FDM printer, due to custom designed tolerance
Freezes fruits, water, flowers, and much more
Made to fit my forearm snugly