David Altweger is a visual artist, director, designer and educator based in London and graduated from Camberwell College (UAL). Besides being a prolific director and creator of moving image work and digital media, he is an established projection artist and composer. Working under the moniker Sagberg he creates interactive installations and reactive live visuals, collaborating with DJs and bands on live shows as well as providing digital projections for dance pieces, performances and exhibitions. He is associate lecturer for digital media at the Faculty of Arts and Creative Industries at Middlesex University. Since 2016 member of Test Dept, the UKs most influential industrial group.