Press fit designs are popular in laser cutting, and there are many examples of laser cut boxes with finger joints. However, one issue with press fit designs is that they are incredibly dependent on material thickness and laser kerf ("thickness" of the laser beam), both of which are highly variable. So the TLTLab designed a universal snap fit (USF) that is independent of both factors. The USF leverages wood's inherent "elasticity" to create a snug and secure fastening, very similar to backpack buckles.
The USF has been tested on different laser cutters on locally sourced plywood in a handful of states in the US, Moscow, Thailand, and many other countries.