Abstract: A controlled, high throughput custom foam generator is disclosed which has the ability to generate foam with varying cell characteristics. The generated foam can be two or three dimensional with controlled gas volume ratio, void sizes, placement and distribution in a matrix. Additionally the device can create individual bubbles or bubble strings. The device streams two or more fluids creating one or more virtual orifices that generate uni modal bubbles displaying crystalline behavior. Unlike known prior art, the device embodies simple controls to easily alter and scale the nature of generated foam. The generator can be single, or be part of an array of generators. The ability to easily alter the resulting bubble and cell composition allows the creation of engineered foams of any structure and packing with controlled foam features such as weight, strength, opacity and persistence; thus making it suitable for a wide variety of applications.