A very intriguing design, and I'm amused by this bit:
The Imura revolver started when a university official, named Yoshitomo Imura, was arrested in Kawasaki, Japan after he was found to be in possession of 3D printed firearms. Even though some of these weapons had the ability to be fired with actual metal bullets, Imura claims to have only ever fired blanks with the weapons. The arrest took place after Japanese authorities found a video online with Imura firing one of his 3D printed guns, called a Zig-Zag Revolver.
Since his arrest the FOSSCAD community has continued upon his work and make several key changes to the weapon. This is the latest version of the revolver now in 22lr. No word on if this has been test fired yet but this proves that the 3d printed gun is still alive and well and the designs are continuing to evolve.
Via Oddball in GBC