Timed CAD Drills
Timed CAD Drills are exercises that help students improve their speed and accuracy in using computer-aided design (CAD) software. The goal is to become faster at drawing while still keeping the work precise and correct. To do well in timed CAD drills, students need to know key terms like 'orthographic projection,' 'isometric view,' and 'dimensioning.' These terms describe how objects are shown in drawings and how measurements are added.
Students should also remember that CAD is used to make clear, detailed drawings for manufacturing. This means every line, label, and measurement must follow standard rules. With practice, they can create professional-quality drawings in less time.
Key Points
- Orthographic projection is a means of representing three-dimensional objects in two dimensions by projecting lines that are orthogonal to the projection plane.
- Third-angle projection is a type of orthographic projection where the parallel projectors originate as if radiated from the far side of the object and pass through the 3D object to project a 2D image onto the orthogonal plane in front of it.
- A section view is a projected view that shows a cross section of the source object along a specified cut plane, often used to show internal features with more clarity.
- A hidden line is a short-dashed line used in engineering drawings to represent edges that are not directly visible.
Terms
Tap a term for a plain-language explanation.
Sources & licensing(4)
- OpenStax — openstax.org/books/college-physics-2e/pages/1-2-physical-quantities-and-units (Creative Commons Attribution 4.0)
- Wikipedia contributors — en.wikipedia.org/wiki/Orthographic_projection (Creative Commons Attribution-ShareAlike 4.0)
- Wikipedia contributors — en.wikipedia.org/wiki/Engineering_drawing (Creative Commons Attribution-ShareAlike 4.0)
- Wikipedia contributors — en.wikipedia.org/wiki/Curly_birch (Creative Commons Attribution-ShareAlike 4.0)