Surface Modeling & Mesh Editing Flashcards
7 cards from real ACE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Surface Modeling & Mesh Editing flashcards as text
In T-Spline modeling, what does inserting an 'Edge Loop' allow you to do?
Answer: Add a continuous loop of edges to add detail or control shape
Inserting an Edge Loop adds a continuous ring of edges around the model, providing additional control points to refine local shape detail.
What does the 'Reverse Normal' command do to a surface body?
Answer: Reverses the direction the surface normal faces
Reverse Normal flips the outward-facing direction of a surface, which affects how it appears shaded and how it interacts with Boolean and thicken operations.
When using 'Boundary Fill' in Fusion 360 Surface modeling, what serves as the boundary?
Answer: Intersecting surface and/or solid bodies that enclose a volume or region
Boundary Fill uses intersecting surfaces or solid bodies as the boundaries and fills the enclosed regions with new surface or solid material.
Which curvature continuity level is required to achieve a visually highlight-continuous (class-A) surface transition?
Answer: G2
G2 curvature continuity matches the radius of curvature across the boundary, producing smooth highlight reflections required for class-A surfacing.
What is the primary advantage of using T-Splines over traditional NURBS surfaces for organic shapes?
Answer: T-Splines allow local refinement without propagating extra control points globally
T-Splines support local refinement — adding detail in one area doesn't force extra control points to propagate across the entire surface as in NURBS.
In the Mesh workspace, what does the 'Plane Cut' command do to a mesh body?
Answer: Slices the mesh with a plane, removing one side or splitting it into two bodies
Plane Cut slices a mesh body with a defined plane, allowing you to remove one portion or split it into two separate mesh bodies.
When converting a mesh to a BRep in Fusion 360, what mesh characteristic most directly affects the quality and accuracy of the resulting NURBS surfaces?
Answer: The polygon count and face regularity of the mesh
The polygon count and regularity of faces (quads vs. triangles) directly affect how cleanly Fusion 360 fits NURBS patches during mesh-to-BRep conversion.