CAD
CAD is short for Computer Aided Design and it essentially allows someone to use computer software as a process to design and display design-documentation. CAD may be used to design curves and figures as two-dimensional (2D) images or curves, surfaces, and solids in three-dimensional (3D) objects.
The most common software that schools tend to use are Prodesktop, Solid works and 2D Design.
Other software used include:
Speaking through experience from using these different programmes I have certainly noticed that they have very similar principles and functions between them, and with that in mind you can transfer the skills from software to software. These basic principles are as follows:
Other common similarities between the softwares ...
The common misconceptions in schools
The most common software that schools tend to use are Prodesktop, Solid works and 2D Design.
Other software used include:
- Auto CAD
- Creo Elements
Speaking through experience from using these different programmes I have certainly noticed that they have very similar principles and functions between them, and with that in mind you can transfer the skills from software to software. These basic principles are as follows:
- Prodesktop, Solid works and Creo elements use the similar commands/functions such as 'sketch mode'
- They all use universal and basic shapes or symbols to represent various functions and commands
- All drawings are used as a mathematical data base
- Solid works and Creo elements use the same concept of sketching on a plane
- The viewing options are the same for example pressing the middle button of the mouse will allow you to move the screen in and out. Effectively zooming in and out.
- With the 3D software by Extruding a object it makes it 3D.
- Every file can be exported as a STL file which allows you to transfer it to a CAM machine
- You can adjust the grid size in each software
- The process relates to the same process whilst using non CAD tools (physical tools) for example you can find an angle with a protractor or measure a certain distance.
- Creo elements and Solid works both show a model tree to display paths and progress
- Solid works, Creo elements, Prodesktop and Auto CAD create three dimensional parts or drawings. (A 'Part' translates to a 3D model made up of features)
Other common similarities between the softwares ...
- All of the dimensions and measurements devised are accurate
- In all programmes you can design more complex and stylish products
- You can view the designs in practically all perspectives
- The design process is faster as it allows you to test work rather than actually making it. This saves time and materials.
- Drawings errors can be corrected easily making it easy to make minor and major adjustments
- Designs can be sent/received via email
- The work can be stored and saved in a safe place
- In some respects the programmes collectively can suit different ages and abilities it is versatile meaning that learning can be built in to any manner of project.
The common misconceptions in schools
- Students often think that 2D design can create 3D objects, 2D design create 2D drawings which is typically a section of an assembly which is an arrangement of parts
- 2D design can feel as if it is slightly limited if students are used to using more complex programmes that design 3D designs
- Some students do not store and save designs properly and therefore work can be lost - especially if the computers occur any problems
- Often if a design is not thoroughly poorly designed, checked, or at least trialed through modelling or prototyping then a vast amount of materials can be wasted when it comes down to transferring it to a CAM machine - (Connected to CAM) Personal Experience -When I was designing my electronics project using 2D design, I made a slight design error initially but presumed that it would work fine on the Laser Cutter, as a result of this I wasted some material and should have used a smaller piece to practice on or at least double checked the design before using the machine
- Some pupils may struggle with some software as does take time to adjust to each individual and everyone has different learning abilities
- For some users it may be difficult to translate a design concept in a digital format
- Quite often with some software it can be a bit limited not all the tools will be available
- If students become too dependent on this type of designing that it replaces the art of traditional skills such as drawing free hand - this can lead to a lack of skills in certain areas within the subject.