ucsd-compfab

Week 2.2 - Laser to 3D: Stacked Contours

Agenda

• Artist of the Day
• Hands-On
• Homework

Artist of the Day

Inmi Lee. I will not dance (2016)

Also:

• d i s p lace 2005
• complete projects

Handson

Continuing with extracted contours.

1. Download a Mesh

From the internet. Where to get 3d meshes?

• Printables: https://www.printables.com/
• Thingiverse: https://www.thingiverse.com/
• Sketchfab: https://sketchfab.com/features/free-3d-models
• Thangs: https://thangs.com/ (have to register I believe)

2. Extracting Contours from a Mesh

Clean up the Mesh

• Importing and slicing a complex mesh
  • Finding a mesh (thingiverse.com)
  • Importing a mesh into rhino
  • Slicing a mesh with the contour command
  • slicing/design for digital fabrication (material thickness considerations)
• Simplifying mesh
  • ReduceMesh
• Go from mesh to unrollable surface:
  • MeshToNURB

the NEW way (Rhino 8)

• In the top view, select your object and create a ClippingSection centered on the origin.
• In the front view, use Array to copy the sections. Try 1 for X, 24 for Y, 1 for Z.
• Select your stack of ClippingSections, and use NestedClippingDrawing to create a flat layout of those clipped sections.

Reference: see Sectioning for Fabrication https://www.rhino3d.com/stories/fabrication/sectioning-for-fabrication/

Example File: Buffalo Contours

Rhino file: buffalo_contours.3dm

Example File: Sliced Pikachu

Rhino file: sliced_pikachu.3dm

3. Fabricate

Fabricate out of flat material with the laser cutter.

Video Demo: Extracting Contours from Mesh

Video Demo Meshes and extracting contours (google drive video)

Homework

• HW3 Stacked Contours Design Only NO FABRICATION (Due Tuesday 10/15)
• Start ideating for Project 1 (DUE Tuesday 10/22)

References

[TK]