Printing of aqueous carbon nanotube (CNT) inks for flexible electronics
For more information, see our article:
Owens CE, RJ Headrick, SM Williams, AJ Fike, M Pasquali, GH McKinley, AJ Hart (2021) Substrate-Versatile Direct-Write Printing of Carbon Nanotube-Based Flexible Conductors, Circuits, and Sensors. https://doi.org/10.1002/adfm.202100245
The full text can be accessed for free here: http://arxiv.org/abs/2105.10942
Here is a related presentation abstract.
Extrusion printer design
For this project, a standard Makergear M2 was modified to allow fine-scale extrusion by connecting a linear actuator (Thorlabs) with 3D printed syringe mounts for small-volume syringes (blue in this image).