Week 7

Computer-Aided Drafting and Design (CADD)


CADD is the use of software to draw and design physical components or to layout processes. With CADD, shapes and lines can be drawn easily and quickly, content can be easily copied, edited, saved and shared. CADD software also allows accurate calculation of dimensions and more advanced software can even accurately estimate the kinds and amount of materials used of the length of manufacturing time, which facilitates budget planning. It is hence beneficial for a product design to know how to use a CADD software.

We had learnt to use Fusion360 to model shapes or designs. We can also use a 3D Printer to print our design we had made in Fusion360. In class, we had learn how to make a simple keyring and learn how to hasten drawing process through the use of sketch constraints. 

Some of the common tools meaning used are:

Offset - Copy selected sketch geometry a specified distance away from the original geometry.

Extrude - To make a 2 Dimension shape to a 3 Dimensional shape.

Fillet - To smoothen sharp edges.

Trim - Removes unwanted parts or overlapping lines.

Horizontal/ Vertical - Constrains a singe line, or two points, to lie on either the vertical or horizontal axis, whichever is closer to the current alignment.

Coincident - Constraint 2 points together.

Tangent - Constraints a curve and another object so that they touch at a single point but never cross each other.

Parallel - Constraints 2 lines so that they extend in the same directions and never intersect.

Perpendicular - Constraints 2 objects so that they lie perpendicular (90 Degrees) to each other.

Mirror - Mirrors the selected sketch curves about a selected sketch line.


Some examples of designs we had created:










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