ACP Fusion 360 3 — Questions and Answers
Question 1: In Fusion 360, what post-processor output is required to send toolpaths to a CNC machine?
- DXF file
- G-code (NC program) (Correct answer)
- STEP file
- PDF drawing
Correct answer: G-code (NC program)
Post-processing converts Fusion 360 toolpaths into G-code, the machine-specific instruction language read by CNC controllers.
Question 2: Which Fusion 360 tool checks for thin walls, draft angles, and undercuts that could cause injection molding issues?
- Interference Analysis
- Design for Manufacturability (DFM) Analysis (Correct answer)
- Mesh Repair
- Simulation Study
Correct answer: Design for Manufacturability (DFM) Analysis
DFM Analysis in Fusion 360 evaluates part geometry for draft angles, undercuts, and wall thickness to validate injection moldability.
Question 3: In Fusion 360's Render workspace, what does adjusting the 'Environment' setting control?
- Sketch plane orientation
- HDRI lighting and background scene used for rendering (Correct answer)
- Simulation boundary conditions
- Camera focal length
Correct answer: HDRI lighting and background scene used for rendering
The Environment setting applies an HDRI image that provides realistic ambient lighting and reflections in the rendered scene.
Question 4: What file format does Fusion 360 use to export a design for interoperability with other CAD systems?
- .f3d
- .step or .iges (Correct answer)
- .g-code
- .png
Correct answer: .step or .iges
STEP and IGES are neutral CAD exchange formats that preserve solid geometry for import into other CAD applications.
Question 5: In Fusion 360, which study type determines the natural resonant frequencies of a part?
- Static Stress
- Modal Frequencies (Correct answer)
- Thermal
- Event Simulation
Correct answer: Modal Frequencies
A Modal Frequencies study calculates the natural vibration modes and frequencies of a structure to assess resonance risk.
Question 6: What Fusion 360 tool mirrors geometry across a plane within a sketch?
- Pattern
- Offset
- Mirror (Correct answer)
- Project
Correct answer: Mirror
The Mirror tool in Sketch creates a symmetric copy of selected entities across a chosen mirror line.
ACP Fusion 360 3
In Fusion 360, what post-processor output is required to send toolpaths to a CNC machine?