Unit 5 Competency 2 - Construct 3-D models with CAD software

Suggested Objective a:  Construct 3-D part and assembly models with 3-D CAD software

 

 

Let's view a last few items regarding CAD features.  Understanding features can help you make better, informed choices when it comes to designing.  Take a look and take notes as necessary.

Identify the Key Features of a Computer Aided Design System? Links to an external site.

What Is CAD Software? Links to an external site.

Computer-Aided Design Links to an external site.

 

 

Suggested Objective b:  Design a 3-D model and apply appropriate analysis tools to the model

 

  

We will use several programs in the upcoming pages and assignments.  These programs will each help with drawing models.  There are similarities in programs as well as differences.  As you use these programs, recognize the value each can offer in completing a process or drawing.

 

 Suggested Objective c:  Design a 3-D model to create for rapid prototyping in a 3-D printer

 

 

What 3D printing is

3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the entire object is created. Each of these layers can be seen as a thinly sliced horizontal cross-section of the eventual object.

How 3D Printing works

It all starts with making a virtual design of the object you want to create. This virtual design is made in a CAD Links to an external site. (Computer Aided Design) file using a 3D modeling program (for the creation of a totally new object) ór with the use of a 3D scanner (to copy an existing object). This scanner makes a 3D digital copy of an object and puts it into a 3D modeling program.

To prepare the digital file created in a 3D modeling program for printing, the software slices the final model into hundreds or thousands of horizontal layers. When this prepared file is uploaded in the 3D printer, the printer creates the object layer by layer. The 3D printer reads every slice (or 2D image) and proceeds to create the object blending each layer together with no sign of the layering visible, resulting in one three dimensional object.

Visit 3D Printing Links to an external site. to learn more about 3D Printing Links to an external site..  Information above copied from http://3dprinting.com/what-is-3d-printing/ Links to an external site.on November 7, 2014.

3D Printing:  Make Anything You Want Links to an external site.