Conceptual Modelling
A model that exists in the mind used to help us know and understand ideas
Conceptual Modelling
A visualisation of an idea, often created on paper or through software, in two or three dimensions
Graphical Models
A _________ is a sample or model built to test a concept or process. It can be used to test and validate ideas and can be used throughout design develoment
Prototype
Photorealistic CAD-based interactive models that use surface and solid modelling. They can be considered 'digital mock-ups'.
Virtual Prototyping
The production of a physical model of a design using 3D CAD data
Rapid Prototyping
Sketches, drawings, flow charts, card, clay, CAD
types of conceptual models
A set of formal drawing that depicts an object as getting smaller and closer together the further away they are
Perspective drawings
A smaller or larger physical copy of an object
Scale model
A designer creates part geometry independent of the assembly or any other component. Although there are often some design criteria established before modelling the part, this information is not shared between models. Once all parts are completed, they are brought together for the first time in the assembly.
Bottom up modelling
A modelling technique that creates 3D models layer-by-layer by hardening molecules of a liquid polymer using a laser beam.
Stereo-lithography
State an advantage of conceptual modelling
Visual representation can make it easier for designers to see where they are at and maybe change their designs accordingly
It is easy to change and alter
Easier for designers to communicate their thinking to others
Allows designers to test materials
Easier feedback from target market. Low budget models :D
Quick to visualise many things
A type of drawing technique that has fixed rules, the most widely used being isometric projection and perspective drawing.
Formal Drawing Techniques
They are developed to look and feel like the final product. They look like the final product but they do not work like the final product
Aesthetic Models
a product development process obtained through 3D, parametric and associative CAD systems. The main feature of this new method is that the design originates as a concept and gradually evolves into a complete product consisting of components and sub-assemblies.
Top down Modelling
A system that virtually slices a 3D CAD model into thin layers, then cuts out each layer from a roll of material using a laser or plotter cutter. The layers can then be glued in the correct order to create a 3D model.
Laminated object manufacturing (LOM)
State a disadvantage of conceptual modelling
Not that accurate (if it’s just a rough sketch)
Once it’s been created, it harder for designers to come up with another vision or idea
Could be made wrong
Conceptual modelling is a simplified version
The finished product might look different from the conceptual modelling, for example the scale might be different
Reiteration and over-modelling can be a problem
Systems of drawings that are accurately drawn, the two main type are isometric projection (formal drawing technique) and orthographic projection (working drawing technique).
Projection Drawings
A scale or full-size representation of a product used to gain feedback from users.
Mock ups
A technology that interfaces the user via a sense of touch
Haptic technology
A 3D printing technique that places melted layers of material on a bed to build up a 3D model.
Fused deposition modelling (FDM)
Coz I couldn't think of anything else for conceptual modelling - Who is the president of IDEO?
Tim Brown
Drawings that are bigger or smaller than the real product, but exactly in proportion with product.
Scale Drawings
The degree to which a prototype is exactly like the final product.
Fidelity
The calculation and simulation of unknown factors in products using CAD systems. For example, simulating the stresses within a welded car part.
Finite Element Analysis (FEA)
An additive manufacturing technique that uses a laser to fuse small particles of material into a mass that has a desired 3D shape.
Selective laser sintering (SLS)