A silkworm makes flexible structure objects called a cocoon, such as a dome and a plane, by spinning a material like a fiber. Moreover, he moves as his mouth draws "8 of a number". Even if it sees this mechanism from the field of robotics, it is interesting. The method of making a cocoon is considered effective method as the new creation method of a structure. This research is advancing examination about creation of the adjustable surface in the space as the silkworm may do by using industrial-use robot, six axis sense of force sensor, and a spinning apparatus that imitates silkworm's cocooning mechanism and develops.