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Tool Chains, Automation, and Open Hardware

ASSIGNMENT 
Design and build a piece of open hardware for biology.
METHODOLOGY
We made this assignment both individual and group:
1> Material / Process exploration. 
2> Designing / Making the machine.
3> Testing with more materials/process.

5_BIOFAB_FLOW_2ARTIFICIAL 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.

T5_REFERENCE

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.

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MEGAPIPE

MATERIAL EXPLORATION | I experiment with 14 different proportions of Silicone, Paraffin and Beeswax. (And also another materials as Agar and Sugar).

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EXPERIMENT 8 | is the best quality pipe in terms of deffinition and flexibility/resistence. Here the results:

PIPES

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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.

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AUTOMATION | After explore materials proportion and processes, we made a special machine to 3D print micro-pipes: BIO FLOW.

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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.

MEDIUM

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.

RESOURCES

Pictures

DXF

 

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