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Prototyping & Failure: The Art of Design

Prototyping & Failure: The Art of Design. Rama Hoetzlein, 2007 Lecture Notes Univ. of California Santa Barbara. Johann Joachim Becher (from Tecnhical Curiosita , Schott, 1664). H.P. Gramatke, magnetic car. Jove, 1867 Pat. 42/1867. Blain, 1979 Kameroon Pat. OA6413.

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Prototyping & Failure: The Art of Design

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  1. Prototyping & Failure:The Art of Design Rama Hoetzlein, 2007Lecture NotesUniv. of California Santa Barbara

  2. Johann Joachim Becher (from Tecnhical Curiosita, Schott, 1664)

  3. H.P. Gramatke, magnetic car

  4. Jove, 1867 Pat. 42/1867 Blain, 1979Kameroon Pat. OA6413 Smeretchanski, 2003France Pat. 1828716 Guillaume, 1928Belgium Pat. 359840 Source: Hans-Peter Gramatke, Unpublished Works,http://www.hp-gramatke.net/index.htm

  5. Peter Schmalenbach, 2006

  6. What is a sketch? What is the purpose of a sketch?

  7. 1. To explain and communicate Francesco di Giorgio (1439-1502)

  8. 2. To think Albrecht Durer, Multiple Views of the Foot, ~1500 Leonardo da Vinci, Flying Machine, 1490

  9. Challenge: • Vertical lift for an X, Y, Z machine • Must lift a heavy weight with an accuracy of 1 mm

  10. Different types of lifts(pulley, rack & pinion,jackscrew, lead screw Like lead screw most...(high accuracy and travel) But realize.. a grove is necessaryas both ends of screw must be fixed.Idea.. Put screw off-center.Travel bar attached to it.

  11. Design is coming together.Ready for CAD?

  12. Design is coming togetherReady for CAD?

  13. Low friction.. But just a bad idea! (Too many parts) More compact.. This looks familiar. Maybe I can use an existing track system.

  14. Essential Parts: 1x Pre-assembled Lead Screw2x Pre-assembled Rail system2x Square tube stock2x Flat plate Low friction. Accurate. Long travel (3 ft). Final touch: Counterweights?

  15. Sketching Concept Sketching • Messy! Thats ok!• Thinking happens here.• No guidelines. Imperfect perspective is ok.• Do lots of them.... but don’t hand these in. Design Sketching • Guidelines.• Communication happens here.• Perspective and shading important.• No dimensions or tolerances Drawing • Dimensions and critical tolerances.• All details present. • Multiple view and sections to make even more clear. • Is it really ready for CAD?

  16. Prototypes Sculpture 1 object. First one is the last one (usually). Prototype 1 object. Test object for a final design. Plan to make lots.Early stage: Like a concept sketch.Late stage: Firstone ready for thorough testing. Many objects. Everything must be working and tested.(Mistake here are costly!) FinishedDesign

  17. Conceptual Prototype Use whatever materials you want! LEGOs, wood, toothpicks. Expect it may breakdown. But you learn the weakest design points.

  18. Low-Cost Camera Boom

  19. Prototypes & Testing Discover real world limitations. e.g. strength of materials, dominant forcesDiscover design issues impossible to see in a sketch. e.g. camera booms must be absolutely silent.Discover limitations of design.e.g. what is the range? weight limits?Discover new options hard to visualize on paper.Discover if it actually works!

  20. Timewave Rama Hoetzlein & Kimberly Iarossi, 2005

  21. Issues Poor communication Language barriersLast minute changes Vertical to horizontalOverly ambitious Started with fancy CAD renderingLimited time 1 weekOverworked crew 30 other artists (big exhibition)No time to test Still working day before exhibitUnforeseen I broke tube day of the exhibit Sketch early, Prototype early, Communicate, Do tests

  22. All is was not lost... There’s always next time. Engineering is a learning experience. Even when you’re experienced.It takes a lot of bad ideas to produce a few good ones. Sketch a lot !

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