3D SANAGO (South Korean: 사나고 Sanago), is a South Korean YouTuber and artist.
He creates videos about repairing stuff or creating things, using his 3D pen. One rather famous example of him repairing something is his famous repairing wall with a 3D pen video. An example of him creating things mainly with the 3D pen is his recreation of Sonic with a 3D pen.
He launched his YouTube channel on November 27, 2013, then uploaded his first video entitled 폭죽2개로 닥터 스트레인지 포탈만들기 almost three years later. He then started uploading 3D pen videos and started gaining recognition overtime for these type of videos.