monk3947
Parts' accuracy is important. Need some skills to assembly the parts together. And if you 3d print parts, the 3d printing accuracy is a key :)
A mechanical engineering module-open and close door via a mechanism similar to a shutter(gear structure). It is a type of mechanical iris.Most parts can be manufactured by laser cutting or 3d printing. After you get the files, ignore the .OBJ and FBX format files, they are only for meeting the platform's requirement.More: https://www.tanerxun.com/mechanical-iris-shutter-mechanism/.html