Design-UDBS - Carnegie Mellon University

Design

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Initial mobile spray park concept with a portable spray pad and walter filtration systems on the back of a small chassis.

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Early diagram of filtration equipment in relation to a trailer (left). Iterations and configurations of what would become The PURIFLUME in diagram and model representation (right)

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The proposed design of The PURIFLUME as it was drafted to Ford Motor Company's College Community Challenge.  Initially the monoque structure called for a fiberglass skin that overlaid over the entire structure as an artificial landscape with a slope similar to that of a small slide.  The equipment is embedded into the structure and reveals itself as emerging from the structure.

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A new parameter emerged as the design transitioned from a custom fiberglass slide to a stock slide.  Utilizing a stock slide changed the relationship between interaction, circulation, composition of components and form.

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Major formal changes to the rib structure after the introductin of the stock slide were done in relation to systems parameters, introduction of flexible tubing, the introduction of photovoltaic cells, as well as other parameters such as required space for slide exit area. 

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This circulation diagram shows the major areas of consideration: A) Slide entrance, B) Slide exit and catch basin, C) Exit stair, D) Systems education, E) Water conservation, sprayheads, and queue.

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Various color studies were developed in order to produce an aesthetic that was appealing to a child and adults.  

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Assembly sequence diagrams for construction.

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The fabrication and construction was developed through digital and physical models.

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The digital process was integral to the project's realization utilizing software from Autodesk (Autocad and Revit) and grasshopper.  Scripting and parameteric modeling was utilized in form generation as well as the generation of rib pieces.  The images show the process in grasshopper in which pieces were generated with accurate half laps, and detailing such as labeling.  

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The digital process moved quickly to digital fabrication soon after a design was finalized.  Using 2D line drawings generated from digital software (AutoCad), 3786 unique pieces were taken into MasterCam and cut on the dFab Lab's CNC 3.5 Axis Router.  (Top left image shows digitally the pieces to be cut out of a 4x8 piece of Medium Density Overlay, the various images depict a very small sample of the process, detailing, and final product of digital fabrication).

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Line drawing representing the 120 sheets with rib pieces nested to optimize material efficiency utilized in the fabrication of just the rib pieces.