For my final project I used black and white photographs of figures behind tracing paper, translated them into height maps in rhino, printed them with the CNC and then sanded and painted their surface. The process created a primitive kind of 3D imaging by treating the original photograph like a distance map and then translating that to 3D data. The resulting reliefs are a reflection on the computer’s desire to separate the figure from the surrounding noise.
Medical imaging technologies such as the CT and MRI create sets of 2D slices. There are various ways to reconstruct these 2D slices into 3D models. Generally each of these slices were taken at a known distance apart. Imaging software can create a simple 3D structure by placing each of these images that known distance apart in 3D space and thereby create a 3D model out of 2D images. This model can be further analyzed by doing a “volume rendering” in which internal objects with different grey scale values are separated into different 3D components.
The following is an image of a 3D model of the brain and eyeballs created in a free software called OsiriX:
Source for image and information: http://en.wikipedia.org/wiki/3D_scanner
I think this technic is interesting because it represents the internal rather than producing an empty shell of the surface of the object.
I also came across the artist Marlene Oliver who works almost exclusively in 3D medical imaging technologies.
For my origami project I modeled three pyramids in rhino, unfolded them in pepakura and printed them out in two different materials on the laser cutter.
These are cut out of handmade paper:
These were made with stonehedge with rasters:
For my 2.5 axis cnc project I designed and fabricated two custom projector holders. The following is a picture of the holder made with the laser printer for a laser projector.
The next two images depict the holder I made on the CNC to fit a DVD player and epson projector:
I found this artist Bert Simon who does 3D paper sculptures of people by using a photograph as reference for a 3D model and then distorts the photo in accordance to the model. Thought it was an interesting project.
http://www.bertsimons.nl/portfolio/papersculptures/rozemarijn/
