I designed the interaction architecture for a product that deleted its own input.

When the electronics replaced the mechanical trigger, the problem shifted from the hardware to the system as a whole: the entire feedback loop that informs the user that a spray has been fired (the click, the travel and the spring-back) had to be recreated using surface textures and haptic feedback alone. I was responsible for the entire interaction, combining precise surface texturing with responsive haptic feedback to ensure that a flat, sensored surface provided the same level of response as a physical trigger across three spray modes: fine mist, jet and wide coverage.

An aggressive R&D timeline was achieved through a hybrid prototyping strategy.

FDM enabled high-speed volume studies, with scale and hand-feel issues resolved within hours. Once the macro-ergonomics had been finalised, high-fidelity SLA validated the surface texture and mechanical tolerances to within ±0.15 mm.

Intuitive on first contact.

The final actuation is intuitive at first touch (there is no need for a label or a learning curve) and it moves users away from mechanical sprayers while maintaining full control of fluid delivery. There are zero moving parts in the final mechanism. The product has been launched and is available to buy from major US retailers, including Amazon, Williams Sonoma and Crate & Barrel.