| dc.description.abstract | 3D bioprinting is an advanced technology that enables the direct printing of tissues
and organs, enhancing research in scaffolds, bio-inks, and tissue regeneration. While
current efforts focus on improving 3D bioprinter heads for accuracy, there's a critical
challenge limiting bio-ink volume during printing. Existing solutions face time constraints
and are restricted by bio-ink capacity per cycle. To address this, this project aims to develop
a continuous feeding system using peristaltic pumps. These pumps will supply materials to
the bioprinter head and automatically blend two different types of materials. By regulating
pump speeds and monitoring flow feedback, precise control over the mixing ratio can be
achieved. Additionally, pressure sensors will track material blending within the continuous
extrusion bio 3D printing heads. The feeding system demonstrates consistent accuracy
across various pumping speeds, ensuring stability throughout the entire printing process.
Output pressure measurements validate this reliability up to 90%. Moreover, the system
generates additional pressure to aid the extrusion process within the print head assembly,
enhancing the screw's extrusion capability that can release the back pressure from the
extrusion as well as support the pressure for the printer head from 10 psi to 12 psi. To
further enhance control, application software has been developed, allowing management
via both push buttons and a laptop interface. | en_US |
