Term 2 questions.

Design Technology questions.


CAD stands fro Computer-Aided Design

A prototype is an early sample or model built to test a concept or process or to act as a thing to be replicated or learned from. It's important because that us how you can check whether your project is going to work or not. If not, how can you fix it and make it better.

Rapid Prototyping (RP) enables the quick fabrication of physical models using three-dimensional computer aided design (CAD) data. Used in a wide range of industries, Rapid prototyping allows companies to turn innovative ideas into successful end products rapidly and efficiently.

before rapid-prototyping, prototype should be sketched. To see the elementary design of all the details of the machine(project)

Additive manufacturing or 3D printing[1] is a process of making a three-dimensional solid object of virtually any shape from a digital model.

CNC means Computer Numerical Control. This means a computer converts the design produced by Computer Aided Design software (CAD), into numbers. The numbers can be considered to be the coordinates of a graph and they control the movement of the cutter. In this way the computer controls the cutting and shaping of the material.

A STL file is a format used by Stereolithography software to generate information needed to produce 3D models on Stereolithography machines.In fact, the extension "stl" is said to be derived from the word "Stereolithography." The surface of an object is broken into a logical series of triangles. Each triangle is uniquely defined by its normal and three points representing its vertices.