Steps.
1. Idea Generation. Techniques:
TRIZ, Brainstorming, 6-3-6 method, incubation, morphological analysis, Using the product, random word technique, random combination.
2. Concept generation and concept selection - Techniques:
Sketching, 2d rendering, 3d realistic rendering. Tools Used: Pencils, Sketch pen, crayon, dry pastels, Photoshop, Coral draw, Rhinoceros.
2a. Pugh's concept selection methodology, weighted ranking method.
3. 3D modeling and Detail Design. Cad Software: Solidworks, Pro/E, NX, CATIA. Comparison between software like solidworks, pro/e, NX, etc
4. Prototyping. Hand made prototypes, Rapid Prototyping.
5. Manufacturing. Depends on Material - Plastic - Moulding , Sheetmetal - Punching and bending, welding.
6. Sales.