INDN 341 - mass digital manufacture

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This program allows users to draw lines in the open field. There is a

I was having trouble working with the Graffiti reasearch labs code as it referenced libraries which no longer exist in processing 3.0. Luckily I found the piece of code linked above which I have been able to alter for my purposes. The limiting factor of this code is that I am only able to use lines and not ellipses or bezier curves in my generated pattern.

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Above is the sketch which I based my geometric pattern on.

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Pattern of circles

I could possibly create a sketch which would generate patterns similar to the one linked above with the variables replaced with randomly generated numbers.

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OriginalGCode is a hardware/software package designed to allow graffiti tags and drawings to be easily captured via a webcam, and export the ensuing shape data to various formats for 2D and 3D fabrication. Built as part of Graffiti Research Lab Germany, in extension to the SVG2BVG project, and in collaboration with several other people, notably Christophe Vaillant and Tristan August. For m ...

Moving forward to project three, I need to create a pocessing sketch that will output custom geometric sketches which can automaticaly be turned into G-code to be sent to the arduino controlled 2-axis printer. Above is a link to a project by graffiti research labs, in the project they were able to capture drawn images via webcam and convert these to G-code in real time. Hopefully I will be able to unpack their code to use in my project.

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An explanation of the digi doodler and images of the final model showing the qualities of the materials.

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Proof of concept of an extruded pattern in cornstarch and silica sand.

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For my second experiment I created material swatches from cornstarch gel mixed with different additives. From top to bottom the additives are silica sand, wood shavings, wool fibres, PVA glue.

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Pictures from experiment one, testing the corn starch gel with three different concentrations of silica waste sand from the sand blaster. 

Middle images depict the object degrading in tepid water over 40 minutes.

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Maize Starch

As I still have not had any reply, from SCION or the Victoria University biology department, I have begun experimenting with heated corn flour as it is a cheap and easily available bio based adhesive which is also water soluble.

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I have begun looking for alternative bio-based sand binding agents and have contacted SCION to enquire about ‘ligate’, a new eco friendly adhesive they have created to replace petrochemical based laminate glue. 

I have also been considering natural resins such as pine tree gum but there is very limited information about this resource on the web. In addition to inquiring about ligate I have also asked SCION if they have any information or samples regarding pine rosin/gum.

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To import microorganisms and products containing live microorganisms into New Zealand there are special procedures to assess and minimise any biosecurity risks. We've created a step-by-step process so you can see what's involved – all in one place.

After looking through information on importing microorganisms more closely I found that I am required to apply “for a permit at least 6 weeks before” the microorganism arrives in New Zealand.

This means that I will not be able to import the sporosarcina pasteurii bacterium necessary for my proposed plan. I have additionally contacted several NZ universities, including Victoria University’s biology department, to ask for assistance and have had no luck. 

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Effects of environmental factors on microbial induced calcium carbonate precipitation

Aims:  To gain an understanding of the environmental factors that affect the growth of the bacterium Sporosarcina pasteurii, the metabolism of the bacterium and the calcium carbonate precipitation induced...

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Turning Sand into Stone architecture

 Area of application - Sahara desert and other areas where dune migration threatens  wildlife and human populations.

Materials - Bio based sandstone formed from Sand and calcite secreted by the b. pasteurii micro organism.

Process - By applying calcium, urea and b. pasteurii as a paste to the sand, specific areas may be hardened to stone. 

Technology - Microbial induced calcium carbonate precipitation.

Merits over conventional methods - Bio-based additive manufacturing means zero waste, renewable, carbon neutral buildings.

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Magnus Larsson hopes to build new structures in the desert -- by using bacteria to turn shifting sand into a solid mass.