Author Archives: 08 Andrew Lehman

P5 – 08 Troy Newell & 08 Andrew Lehman

P4 – Fabrication Submittal

The seascraper model is comprised of three parts – base, core, and body.  The end result will have utilized three different 3D fabrication processes.

BASE – a body and legs.  Rhino was used for sectioning and final tagging was added in Illustrator.

CORE – a cylinder comprised of three sections (two end caps and the bodycore).  The end caps where sectioned in Rhino and exported to AutoCad for clean-up.  The bodycore is simply a cylinder and was waffled in AutoCad.

BODY – The body is a simple volume with arbitrary faces laid out using the cut tool. Then the polygon was exploded into its individual faces, because once extruded the whole form was too complicated for Pepakura.  Then the faces where grouped into four groups (Two for the sides each comprised of two sides, a top and a bottom). The faces where then Extruded, not super extrude, and exported to Pepakura.  Finally, cleanup was performed in AutoCad.

Intersect/Physical/Mesh Mesh

Mesh/Mesh defines the curve where two meshes intersect. Following are two examples: the first simply demonstrates the tool; the second demonstrates how the resultant curve can be used.

Example one: shows two simple mesh planes and the resultant curve, see the green line in image 1. Images 2 & 3 show the GH definition.
Here are the steps: 1 – define meshes; 2 – Setup a “Mesh Mesh” using one mesh as input “A” and one as input “B”. A line will appear defining the curve.

Example two: shows several intersecting 3D mesh forms, the resultant curves, and steps necessary to extrude a resultant curve. Image 4 shows a curve, highlighted in green, at the intersection of the two cubes. Image 5 shows a curve, highlighted in green, at the intersection of the cube and sphere. Finally, image 6 shows an extrusion of one curve, highlighted in green. Images 7-11 show how the GH definition evolves.
Here are the steps: 1 – define meshes; 2 – setup a “Mesh Mesh” for each group of two intersecting volumes/planes, same as above except any meshes that are intersected more then once will be inputs in more then one “Mesh Mesh”; 3 – connect the “Mesh Mesh” output to the “Extrude” input to extrude the curve; 4 – define the vector, or direction and distance, of the extrusion.

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