42629 lecture 12 pt3

Protovation – Technical feasibilityThomas J. Howardhttps://sites.google.com/site/thomasjameshowardhomepage/thow@mek.dtu.dk

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“Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark”

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Rapid Prototyping Facilities

3 different kinds of machines:

1. A machine producing models in plaster (not for functional tests). This process is called ‘3D Printing’ or 3DP.

2. A machine producing models from fluid acrylic type of plastics. The process is SLA-like, make very small details in thin layers to 25 microns but is rather slow.

3. 2 machines producing models from a plastic thread. They are made from self-assembly kits and are very cheap. The process is called FDM (Fused Deposition Modeling) and is rather fast compared to the aforementioned processes.

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Manufacture and Fabrication Facilities1. Produce and engineering drawings and 3d sketches of the parts

2. Print them out on paper and go to discuss with Jan Frank Pedersen at the earliest opportunity.

3. Provide Jan with the files/drawings he requests and arrange with him a schedule of work and your deadline.

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Paper prototyping

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Proof of principle prototypes

Oversights revealed by the Prototypes

Concept 1 Concept 2 Concept 3

– Awkward assembly – Awkward assembly – Lock insecurity

revealed

– Very small increments

for code

– Cannot work in all

orientations

– More flimsy than

anticipated

– Code revealed under

tube

– To release bars must

first be raised

– Supporting pin are too

small

– More flimsy – Awkward to adjust code – Awkward to adjust code

– Lock insecurity

revealed

– Lock insecurity

revealed

+ Simplicity realised

+ More discreet than

anticipated

+ More sturdy + Dimensionally suited

+ An effective visual

deterrent

+ Locks securely even

when code is <2mm out

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Prototype vs Production Model

Prototype parts Extruded parts

T cutter would have been required for

this section

Instead of using a T cutter to form the extra lip Mill Square then fasten will screws.

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Proof of principle/form prototype

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Mk. 9

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Prototype for assembly

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Prototype for assembly

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Sun cream on demand

What would a prototype be able to tell us about the product (excluding the

market) ?

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Protovate your product

Taking your own project and your list of burning

questions, design at least 1 prototype and test for the product’s function or the production feasibility.

10mins

2012Original material by Thomas J. Howard for course 42629 – Innovation and Product Development Department of Mechanical Engineering, The Technical University of Denmark

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Questions

?