A Parametric Generative Tool for Festival Sculptures
Brief Overview
Inspired by the Burning Man and associated structures / sculptures, EFFIGY is a Grasshopper parametric design tool for generating flat-pack festival structures from laser-cut sheet materials. The tool varies overall dimensions, rib spacing, sculptural deformation, and material thickness to create expressive waffle-frame forms while minimizing material use and fabrication complexity.
It outputs total material area, rib count, total cut length, fabrication-ready rib geometry, and a 3D visualization of the assembled structure. The selected option is displayed as a sculptural waffle-frame pavilion, booth, or DJ stand.
This is a conceptual design and fabrication-planning tool, not a structural, code-compliance, engineering, or construction documentation tool.
Tool File 3units_WillaCrowell_Module9 No custom nodes or external packages are required.
How to Use
- Open the Grasshopper definition in Rhino.
- Set the design inputs:
- Width
- Depth
- Height
- Material Thickness
- Rib Spacing
- Rotation Amount
- Sculptural Scale / Graph Mapper Profile
- Run a Generative Design Study (Galapagos) using any combination of:
- Width
- Depth
- Height
- Rib Spacing
- Rotation Amount
- Sculptural Scale Factor
- Minimize:
- Total Material Area
- Total Rib Count
- Total Cut Length
- Use only options that:
- Maintain a continuous waffle structure
- Meet fabrication constraints
- Produce a usable festival booth, pavilion, or DJ stand configuration
- Review the generated design alternatives and select the preferred solution.
- Re-enter the selected values into the sliders to view the final waffle-frame geometry and fabrication-ready rib layout.
Teaser image:
Video Demo https://drive.google.com/file/d/1w2eLw1ffT6PfQ--UOJxHar4y20zbTmDV/view
Original Idea and Changes The tool changed a lot during development. I originally wanted to create a fully interlocking waffle structure with automatic slots, but the slot-cutting workflow was difficult to get working reliably. The contour curves were often open, the slot rectangles did not always align correctly, and Solid Difference frequently failed. I also experimented with Cull Index to remove ribs and create openings, but it made the overall shape harder to control. After several rounds of debugging, I simplified the tool by removing the slot system and focusing on the parts that worked best: generating a sculptural loft, creating waffle ribs through contouring, and evaluating fabrication efficiency. The final version is more stable, easier to use, and better suited for generating flat-pack festival structures and DJ stands while minimizing material use and fabrication complexity.
I left remnants of these choices in the final model to show that they were considered.
