3D printing of complex objects typically takes a long time due to the printing process necessarily laying down a large number of 2D layers to build up the object. The process usually wastes a lot of material required to support the unfinished object. Some novel ways to make flat materials self-fold into 3D shapes exist, but have shortcomings. For the first time, researchers combined 2D printing, origami, and chemistry to create a method of rapid 3D object fabrication without creating any waste material. These shapes self-fold in seconds.
3D printing of complex objects typically takes a long time due to the printing process necessarily laying down a large number of 2D layers to build up the object. The process usually wastes a lot of material required to support the unfinished object. Some novel ways to make flat materials self-fold into 3D shapes exist, but have shortcomings. For the first time, researchers combined 2D printing, origami, and chemistry to create a method of rapid 3D object fabrication without creating any waste material. These shapes self-fold in seconds.
‘Mr. Keio’ contestant not prosecuted for sexual assault for sixth time
By Tokyo Reporter Staff on December 12, 2020
In reporting on the arrest, some news outlets mentioned that prosecutors had dropped the first five cases. Well, as TV Asahi (Dec. 11) reports, that happened in the sixth also.
Early on March 24, 2019, Watanabe and Kazuki Koyama, both 24, were alleged to have sexually assaulted a woman, aged in her 20s, inside a karaoke parlor near JR Omiya Station in Saitama City.
Afterward, Koyama forced the woman into a nearby internet cafe where he was alleged to have sexually assaulted her again.
Upon their arrests on suspicion of coerced intercourse on November 20, the suspects declined to comment on the allegations, the Omiya Police Station said.