3D Product Study Guide 2026
Everything you need to pass the 3D Product exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 3D Product Exam Format at a Glance
📚 3D Product Topics to Study (30)
✍️ Sample 3D Product Questions & Answers
1. What is 'Shore hardness' used to measure in product material selection?
Shore hardness (A scale for soft rubbers, D scale for harder plastics) quantifies material firmness, used to spec flexible components like grips, gaskets, and seals.
2. What is 'anisotropy' in 3D-printed parts and why does it matter?
FDM-printed parts are anisotropic because layer-to-layer bonding is weaker than in-plane strength, meaning part orientation relative to loads must be considered in design.
3. What does 'Design for Assembly' (DFA) aim to achieve?
DFA analyzes assembly sequences to reduce part count, eliminate fasteners, and simplify joining operations — reducing assembly time and defects.
4. What is a 'mood board' used for in product design?
Mood boards communicate the intended visual language, style, and emotional tone of a product to align teams and clients before detailed design begins.
5. What is the purpose of 'sandblasting' in product finishing?
Sandblasting (or bead blasting) uses high-pressure abrasive media to clean, texture, or prep surfaces — creating consistent matte or satin finishes on metal and plastic.
6. What does 'bill of materials' (BOM) mean in product design?
A BOM is the complete list of every part in a product assembly — component names, part numbers, quantities, and specifications — essential for procurement and manufacturing.