LET IT OPEN is an academic research project focused on how the work of contemporary designers is shifting from an individual to a collaborative approach. The project is inspired by the open-design methodology, first proposed by Enzo Mari in ‘Autoprogettazione 1977’ and followed by current movements such as Recession Design and Infrastructures by Thomas Lommee. During a trimester 20 students designed ‘open-projects’ made out of standard components which are industrially produced and parts which are very simple to produce, as DIY (‘do it yourself’). The result is a collection of 'open source' objects that are reproducible with an easy manufacturing process, with a very high facility to replace or repair parts by anyone at an affordable price. Each project is then uploaded in the internet sharing its construction manual and technical sheets in order to be replicate by anyone in the world.