Designed by Aleksandr Semochkin | Released under CC BY-SA 4.0


A group of researchers from the University of Dallas have suggested a promising solution to the basis for artificial muscles: to use ordinary nylon fishing line twisted into a tight helical spring. This material has some properties inherent to biological muscles. Such muscles can contract and expand when affected thermally and they return to their original shape being cooled.

This project is dedicated to the device that implements the manufacturing technology of artificial muscles, and which was presented at the IEEE International Symposium on Assembly and Manufacturing (ISAM) collocated with 12th Conference on Automation Science and Engineering 2016, Fort Worth, Texas, USA (Paper: A. N. Semochkin, "A device for producing artificial muscles from nylon fishing line with a heater wire", 2016 IEEE International Symposium on Assembly and Manufacturing (ISAM), Fort Worth, TX, USA, 2016, pp. 26-30. doi: 10.1109/ISAM.2016.7750715). The machine allows to make samples of muscles with identical characteristics.

Types of muscles that could be prepared by Artificial Muscle Twister

Type 1 - entire polymer fiber twisted into a tight helical spring (autocoiling process).

Homochiral (contracting muscle)

Type 2 - polymer fiber twisted until the formation of coils and wound on a rod (Mandrel coiling process).

Homochiral (contracting muscle)

Heterochiral (expanding muscle)

A Device in action


Blagoveshchensk city, Russia.
Aleksandr Semochkin

Creative Commons License Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)