1 / 50

BID 02/02/02

BID 02/02/02. Parameterized Sculpture Design Carlo H. Séquin University of California, Berkeley. Designs I worked on:. Sculpture Design.

manuelat
Télécharger la présentation

BID 02/02/02

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. BID 02/02/02 ParameterizedSculpture Design Carlo H. Séquin University of California, Berkeley

  2. Designs I worked on:

  3. Sculpture Design • How can we use the visualization power offered by computer graphics and by computer-controlled rapid prototyping for the design of geometrical sculptures?

  4. “Hyperbolic Hexagon” by B. Collins • 6 saddles in a ring • 6 holes passing through symmetry plane at ±45º • = “wound up” 6-story Scherk tower • What would happen, • if we added more stories ? • or introduced a twist before closing the ring ?

  5. “Hyperbolic Hexagon II” (wood) Brent Collins

  6. Scherk’s 2nd Minimal Surface Normal “biped” saddles Generalization to higher-order saddles(monkey saddle)

  7. Closing the Loop straight or twisted

  8. Sculpture Generator, GUI

  9. Brent Collins’ Prototyping Process Mockup for the "Saddle Trefoil" Armature for the "Hyperbolic Heptagon" Time-consuming ! (1-3 weeks)

  10. A Simple Scherk-Collins Toroid Parameters:(genome) • branches = 2 • stories = 1 • height = 5.00 • flange = 1.00 • thickness = 0.10 • rim_bulge = 1.00 • warp = 360.00 • twist = 90 • azimuth = 90 • textr_tiles = 3 • detail = 8

  11. Also a Scherk-Collins Toroid • branches = 1 • stories = 5 • height = 1.00 • flange = 1.00 • thickness = 0.04 • rim_bulge = 1.01 • warp = 360 • twist = 900 • azimuth = 90 • textr_tiles = 1 • detail = 20

  12. A Scherk Tower (on its side) • branches = 7 • stories = 3 • height = 0.2 • flange = 1.00 • thickness = 0.04 • rim_bulge = 0 • warp = 0 • twist = 0 • azimuth = 0 • textr_tiles = 2 • detail = 6

  13. 180º Arch = Half a Scherk Toroid • branches = 8 • stories = 1 • height = 5 • flange = 1.00 • thickness = 0.06 • rim_bulge = 1.25 • warp = 180 • twist = 0 • azimuth = 0 • textr_tiles = e • detail = 12

  14. V-art VirtualGlassScherkTowerwith MonkeySaddles(Radiance 40 hours) Jane Yen

  15. Séquin’s “Minimal Saddle Trefoil” • Stereo-lithography master

  16. Minimal Trefoils -- cast and finished by Steve Reinmuth

  17. Slices through “Minimal Trefoil” 50% 30% 23% 10% 45% 27% 20% 5% 35% 25% 15% 2%

  18. Emergence of the “Heptoroid” (1) Assembly of the precut boards

  19. Another Joint Sculpture • “Heptoroid”carved byBrent Collins

  20. Advantages of CAD of Sculptures • Exploration of a larger domain • Instant visualization of results • Eliminate need for prototyping • Create virtual reality pictures • Making more complex structures • Better optimization of chosen form • More precise implementation • Rapid prototyping of maquettes

  21. Rapid Prototyping by FDM

  22. Various “Scherk-Collins” Sculptures

  23. Parameterized Sculpture Families Within the domain of a sculpture generator, vary selectively 1 to 3 parameters, and create the resulting instances: • Scherk Collins toroids  “Trefoil Family” • Pax Mundy  “Viae Globi”

  24. Family of Symmetrical Trefoils W=2 W=1 B=1 B=2 B=3 B=4

  25. Close-up of Some Trefoils B=1 B=2 B=3 Varying the number of branches B (the order of the saddles).

  26. Higher-order Trefoils (4th order saddles) W=1 (Warp) W=2 

  27. 9-story Intertwined Double-Toroid Bronze investment casting fromwax original made on3D Systems’“Thermojet”

  28. Inspiration: Brent Collins’ “Pax Mundi”

  29. Sculptures by Naum Gabo Pathway on a sphere: Edge of surface is like seam of tennis ball;  2-period Gabo curve.

  30. 2-period Gabo curve • Approximation with quartic B-splinewith 8 control points per period,but only 3 DOF are used.

  31. 4-period Gabo curve Same construction as for as for 2-period curve

  32. “Pax Mundi” Revisited • Can be seen as:Amplitude modulated, 4-period Gabo curve

  33. SLIDE-UI for “Pax Mundi” Shapes

  34. Parameterized Sculpture Design 3 Phases: • Discover and distill out the key paradigm • Define the most appropriate set of parameters • Develop generalizations of the paradigm  The Program is the Design, is the Artwork!

  35. Via Globi 3 (Stone) Wilmin Martono

  36. “Maloja” -- FDM part • A rather winding Swiss mountain pass road in the upper Engadin.

  37. “Stelvio” • An even more convoluted alpine pass in Italy.

  38. “Altamont” • Celebrating American multi-lane highways.

  39. “Lombard” • A very famous crooked street in San Francisco

  40. Conclusions Design as an aesthetic optimizationin the purely geometrical realm. The computer can also bean amplifier / acceleratorfor the creative process.

  41. Questions ? THE END

  42. EXTRAS

  43. Another Inspiration by B. Collins

  44. Collin’s Conceptual Design SWEEP CURVE (FOR DOUBLE CYLINDER) IS COMPOSED OF 4 IDENTICAL SEGMENTS, FOLLOWS THE SURFACE OF A SPHERE.

  45. Reconstruction / Analysis (v1) FROM THE FDM MACHINE AWKWARD ALIGNMENT

  46. Further Explorations (v2: add twist)

  47. A More Complex Design (v3)

  48. Fine-tuned Final(?) Version (v5)

  49. Galapagos-6 (v6)

  50. Circle Splines on the Sphere Examples from Jane Yen’s Editor Program

More Related