3D Fabrication

Design and feasibility studies for projects that move from digital model to fabricated object. Each project below shows the working method as much as the result — what's drawn, what's built, what gets figured out along the way.

3-Day Design Proposal: Building Facade

Bent Steel Panels on Steel Grid

A quick proof-of-concept project. Bent steel panels attached to a 2" square tube steel grid produce a halftone effect across the entire side of a building. A custom plugin expedited the design — it quickly visualizes the final result and generates the supporting documents.

Three views of the proposed design.
A few of the design documents. The bill of materials and the installation chart are generated by the plugin.
Plugin code.
Custom plugin in action. It uses an image to set the bend angles on any number of individual panels.
Quick renderings of alternate designs.

Summary

By the time the proposal is presented, numerous options are on the table with infrastructure in place to quickly visualize new ideas.

Hyperbolic Roof: 1-Day Feasibility Study

CNC-Carved Plywood

3-Point Hyperbolic Roof

Two Problems

  1. Plywood isn't long enough to make the ribs in one piece.
  2. Because of the curves, ribs that use the full length of the plywood are wasteful — when cut to 8' lengths, many sheets only fit one.

A Solution

  1. Cut two copies of each piece from 1/2" plywood, then glue them together to make 1" thick ribs.
  2. Create enough overlap to be strong.
  3. Split them on slot lines so the cuts are hidden when the piece is assembled.

Part Organization

These shapes are similar, easy to confuse, and the sheets are laid out to optimize the material — not to keep the parts organized. The fix is to include part numbers in the cut plan and run a quick pass to carve them into the parts before cutting. As with the rib seams, the numbers are placed so that they will be hidden when the piece is assembled.

Summary

At the end of the study the material requirement is known, approximate cutting times are known, and a realistic proposal can be made for this part of the design.

SOFTIES: 1-Day Design

CNC-Carved Foam — 3D Storefront Sign

Digital sculpting tools define the 3D shapes.
The 3D shapes generate the foam slices.
The slice arrangement is optimized to minimize material use.
One of the CNC cutting paths includes tabs that keep free parts attached to the sheet — letting the whole sheet be moved at once between cuts.