F13LD · computational design

Browser tools for metamaterial lattice design.

F13LD is a set of browser-based tools for designing metamaterial lattices and estimating their effective mechanical properties. The tools share a common recipe format, so a design produced in one can be analyzed, refined, stored, and meshed in the others without exporting and re-importing files.

Browse the tools View the pipeline
Designgeometry generation
F13LD.wave
TPMS-like surfaces generated from superposed standing waves.
design
F13LD.tpms
Triply-periodic minimal surfaces from their implicit equations.
design
F13LD.grain
Stochastic lattices from spinodoid, Gaussian-random, and reaction-diffusion fields.
design
F13LD.noise
Procedural-noise lattices: simplex, cellular, fractal, and curl-noise fields.
design
F13LD.beam
Strut-and-node lattices, from a cubic-cell library or a freehand builder.
design
F13LD.bundle
Helical fiber architectures: bundles, helicoids, braids, and weaves.
design
Exploredesign-space search
F13LD.sweep
Samples a parameter space and ranks the resulting designs.
explore
F13LD.synth
Inverse design: from a target stiffness to candidate geometries.
explore
Analyzestiffness analysis
F13LD.lab
Full-field FFT homogenization on the GPU for stiffness analysis.
analyze · in progress
Librarystorage and retrieval
F13LD.vault
Shared database of validated designs, with search and comparison.
library
F13LD.ingest
Bulk import of design recipes into the vault.
library
Meshmesh generation
F13LD.mesh
Converts a recipe into a watertight 3MF for printing.
mesh
The pipeline

The shared recipe format.

Every tool reads and writes the same recipe JSON. A design generated in one tool can be swept, analyzed, stored, and meshed in the others; the recipe is the only thing that passes between them.

design
Generate
wave, tpms, grain, noise, beam, bundle
explore
Search
sweep (forward), synth (inverse)
analyze
Measure
in-tool estimate; lab (full-field)
store
Keep
vault database; ingest import
mesh
Print
watertight 3MF
See the pipeline page
Concepts

Shared concepts.

Background the tools have in common. Each tool page links to the relevant entries.

concept
Relative density

Volume fraction and its effect on stiffness.
concept
Anisotropy & Zener

Directional stiffness and the Zener ratio.
concept
Homogenization

How effective stiffness is computed, and what it assumes.
concept
Level sets & topology

Iso values and sheet, solid, and half-solid topologies.
concept
Periodic vs. stochastic

Repeating cells versus random fields.
concept
Biomimicry

Structural strategies borrowed from biology.