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Multi-Head Bio Printer

Development of a multi-head 3D bioprinter.

Bioengineering 3D Printing Hardware Design Research Lead Mechanical Engineer Sep 2021 - Dec 2021
Multi-Head Bio Printer

The Challenge

Existing bioprinters were either prohibitively expensive or lacked the ability to print with multiple materials simultaneously. The challenge was to build an affordable, open-source multi-material bioprinter.

The Approach

Designed a custom tool-changer system for a standard 3D printer frame, allowing for automatic swapping of syringe pump extruders. Developed firmware modifications to support multiple extruders.

The Results

Successfully demonstrated multi-material prints with hydrogels and other bio-inks, proving the concept for low-cost tissue engineering research.

Overview

This project aims to accelerate bioengineering research by providing an accessible platform for complex tissue scaffold fabrication. The Multi-Head Bio Printer is capable of printing with multiple bio-inks in a single print job.

System Architecture

  • Tool Changer: A magnetic coupling system allows the printer to pick up and park different print heads.
  • Syringe Extruders: Motor-driven syringe pumps provide precise control over flow rates for viscous bio-materials.
  • Environmental Control: (Optional) Enclosure design to maintain sterility and humidity.

Impact

By reducing the cost of hardware, this project enables more labs and students to experiment with 3D bioprinting technologies.