The following are the main points which is briefly discussed about CAD designing process.
  • Designing Process

When designing something complex in CAD you are going to find there's a little a progression. First you design parts. Then you build the parts into Sub Assemblies. Next you build sub assemblies into Groups. Then you build the groups into the machine. It's a logical pyramid process. You are able to also consider it like a file structure inside of a personal computer.
  • Designing Elements

Parts are the building blocks of yours. Without this level, nothing can be produced. The part level breaks the whole thing down to its simplest form. You also manufacture at the part level. Parts are made by you, and then assemble them into various other items. Parts are usually made out of raw materials.

Think of a differential on the rear of an automobile. The differential is actually made up of gears and a housing. Each of these're areas of the differential and the differential is actually the assembly of these parts.
  • Designing Assemblies

Sub Assemblies are actually the next level up and I'm guessing you're getting the idea. You first design parts, then put them together into sub assemblies. In the automobile example above the differential is actually a sub assembly in the Group of the automobile. Sub Assemblies are actually put together to form groups.
  • Designing Groups

Moving up the design chain, groups are generally things you are able to identify with. It may be cooling package, transmission, engine, or a door on an automobile. Above we used the example of an Axle as a team. Groups are actually put together into machines. Our example is actually an automobile, which is actually at the machine level.
  • Designing Machinary

Lastly, the best level of all your designing, the machine. The device might be made for the end user or even be sold to another manufacturer. That manufacturer could use the machine of yours as a sub assembly or perhaps group. You are able to see all this's simply a case of viewpoint. You are able to consider nearly anything a sub assembly, group or perhaps final machine. It's all just semantics and what you're making use of the product for.