Design and build a piece of open hardware for biology.
We made this assignment both individual and group: 1> Material / Process exploration. 2> Designing / Making the machine. 3> Testing with more materials/process.
ARTIFICIAL ARTERY | HTGAA 2015 | LIMA | BENO JUAREZ
1> Material / Process exploration.
GOAL: DEVELOP A SYSTEM TO GROW OBJECTS THROUGH CONTROL OF FLUIDS.
REFERENCE:This process is inspired in Materia y Paisajes Evolutivos T5-PUCP – 2014 | Groups: Parafina and Caramelo | Faculty: Brian Miller, Alessandra Calmell del Solar, Benito (Beno) Juarez.
PRINCIPLE: I use differential of temperature and viscosity to grow “Artificial Arteries” (micro-pipes) by injecting alcohol into a mixture of wax and silicone. The temperature’s difference makes solid the wax+silicone and the alcohol’s flow creates a continuous channel.
MATERIAL EXPLORATION | I experiment with 14 different proportions of Silicone, Paraffin and Beeswax. (And also another materials as Agar and Sugar).
EXPERIMENT 8 | is the best quality pipe in terms of deffinition and flexibility/resistence. Here the results:
RESISTANCE AND DEFINITION TEST: CHANNEL QUALITY TEST | We use fluorescent ink to verify the continuity and pressure’s resistance of the micropipe. We could verify that pipes with 50% wax and 50% silicone have the best performance.
AUTOMATION | After explore materials proportion and processes, we made a special machine to 3D print micro-pipes: BIO FLOW.
With BIO.FLOW machine we can regulate the Temperature of the mixture, control the speed of the injection and Z axis movement. It has a flexible support that will extend to create the pipe.
FABRICATION PROCESS |
PROGRESS: WE ARE ABLE TO GROW MICRO PIPES (~500 um) EASIER AND FASTER THAN THE TRADITIONAL ADDITIVE MANUFACTURING.
CHALLENGES: HOW TO GROW COMPLEX SHAPES.