CAT-01
Dimension
Size Constraints
Projects limited by specific dimensions, teaching volume conservation and precise caliper calibration.
Constraint Taxonomy & Challenge Cards
Explore Systematic CAD Modeling Constraints
Accelerate spatial reasoning and CAD engineering habits through bounded creative parameters and modular 3D design prompts.
SYS-CAD // 08-CATALOG
Active Deck
Desk Hook 25mm Bounding Envelope
Active Card Constraints
01
Maximum footprint 60x60x60 mm bounding cube
02
Exactly two distinct interlocking primitives
03
Zero overhangs requiring disposable print supports
DIRECTORY PROTOCOL v2.6
Design Constraint Categories & Prompt Cards
Browse our systematic taxonomy of 3D CAD modeling restrictions, workshop guidelines, and hands-on prompt cards engineered to elevate spatial reasoning and parametric discipline.
CAT-02
Geometry
Shape Constraints
Projects restricted to specific geometric shapes, encouraging creative problem-solving with minimal primitives.
CAT-03
Materiality
Material Assumptions
Designing with specific material properties in mind, accounting for layer orientation, rigidity, and tensile thresholds.
CAT-04
Tolerance
Fit Constraints
Creating objects that must fit together or into a specific space with verified mechanical tolerances and interlocking joins.
CAT-05
Ergonomics
User Constraints
Designing for specific user needs, such as left-handed workflows, pediatric handling, or tactile differentiation.
CAT-06
Storage
Storage Challenges
Creating organizers within fixed dimensional envelopes to maximize space efficiency and modular compatibility.
CAT-07
Education
Classroom Objects
Designing functional items for classroom use, meeting strict durability demands and high-turnover educational environments.
CAT-08
Iteration
Iteration Challenges
Improving designs by changing one feature or reducing footprint while maintaining baseline structural performance.
PRMPT-01
Challenge Card
Build It With Three Shapes
Use only three basic shapes to complete the design. Encourages ruthless CAD minimalism and primitive boolean operations.
PRMPT-02
Challenge Card
Fit Inside a 60 mm Cube
The entire design must fit within a 60x60x60 mm bounding box, demanding extreme density and material economy.
PRMPT-03
Challenge Card
Hold Two Objects, Not Three
Design a holder specifically for two items only, forbidding extraneous pockets and unpurposed geometry.
PRMPT-04
Challenge Card
Keep One Surface Completely Flat
Ensure at least one major surface is perfectly flat for printing directly against build plates without supports.
PRMPT-05
Challenge Card
Design for a Left-Handed User
Optimize ergonomics for left-handed mechanics, inverting default tool grips and accessibility orientations.
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