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CAD Modeling Techniques

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Questions and Answers

What is the primary advantage of surface modeling compared to solid modeling?

More precise control over complex shapes (correct)

Improved compatibility with 3D printing software

More accurate geometric properties

Faster rendering times

What is the characteristic feature of parametric modeling software?

Mesh modeling

Free-form modeling

Polygonal modeling

Maintaining relationships between geometric elements through parameters (correct)

What is the role of lighting in 3D modeling?

To simplify the 3D modeling process

To improve rendering times

To enhance geometric accuracy

To create realistic and visually appealing scenes (correct)

What is the difference between additive manufacturing and subtractive manufacturing in 3D printing?

Additive manufacturing builds layer by layer, while subtractive manufacturing carves out from a solid block Signup and view all the answers

What is the acronym 'NURBS' an abbreviation for?

Non-Uniform Rational B-Splines Signup and view all the answers

What is the characteristic of polyvinyl alcohol (PVA) filament that makes it useful for supporting overhanging structures in dual-extrusion prints?

Solubility in water Signup and view all the answers

What is the primary component of a 3D printer that provides a flat surface for the initial layer of the print to adhere to?

Print bed Signup and view all the answers

What is the process of breaking down the model into layers called?

Slicing Signup and view all the answers

What is the type of filament that is known for its elasticity and flexibility, making it suitable for applications such as phone cases and shoe insoles?

TPU Signup and view all the answers

What is the significance of coordinate data in 3D modeling software?

It identifies the location of each vertical and horizontal point, all relative to a reference point Signup and view all the answers