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Description
Description
In Computer-Aided Design Engineering, you will use CAD software to develop 3D representations of engineering objects such as a machine part, device, tool, etc. This even takes place on-site at the conference. You are allotted three hours to develop your drawing and two minutes for interviews.
This is an individual event.
You will submit your design by leaving your computer open for judges to walk around and see. Files must be saved on a hard drive and a USB flash drive.
What to Know
What to Know
How to use CAD software
How to use CAD software
Since this event is about CAD, extensive knowledge and experience about CAD is highly recommended for success. Software includes but is not limited to Onshape and Fusion 360.
Engineering Principles
Engineering Principles
To make sure the design appeals to the judges, knowledge of various elements of engineering is recommended.
What to Submit
What to Submit
The Final Design
The Final Design
The final design will be submitted with your physical computer
Make sure to save files on the hard drive and a USB flash drive
Tools and Resources
Tools and Resources
CAD Software
CAD Software
Onshape - Easy to use and learn
Fusion 360 - More functions than Onshape, but moderately easy to use
Helpful Terminology
Helpful Terminology
Tolerance: The acceptable range of variation in dimensions to ensure parts fit.
Dimensioning: Adding numerical values to sketches/technical drawings for size and placement.
Section View: A cut-through view that reveals internal features of a part.
Fillet: A rounded edge applied to corners for strength and aesthetics.
Chamfer: A beveled (angled) edge, often for ease of assembly.
Rendering: Producing realistic images of CAD models with lighting, textures, and materials.
Parametric Design : Modeling driven by dimensions and constraints so changes update automatically.
Sketch: A 2D profile (lines, arcs, shapes) that serves as the foundation for 3D features.
Extrude: Extending a 2D sketch into 3D space to create a solid.
Revolve: Rotating a 2D sketch around an axis to make a 3D object.
Sweep: Extending a profile along a defined path to form a 3D feature.
Loft: Creating a smooth 3D shape between multiple profiles.
Assembly: A collection of parts put together to show how components interact.
Constraint: Rules applied to sketches/assemblies (e.g., parallel, coincident, concentric) that control geometry and movement.
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