# bencbartlett/3D-printed-mirror-array

3D-printable hexagonal mirror array capable of reflecting sunlight into arbitrary patterns

Repository: https://github.com/bencbartlett/3D-printed-mirror-array
Canonical: https://ross.abutalabs.com/products/3d-printed-mirror-array
Language: Jupyter Notebook
License: MIT
License Family: permissive
Topics: 3d-printing, optics, physics, python
Last push: 2022-01-03T22:13:24+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 1756, "days_push": 1703, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2527, forks 147 (observed 2026-08-28T04:06:58.616505+00:00)

## What it is
An open-source Python/Jupyter project that computes mirror angles for a 3D-printable hexagonal mirror array reflecting sunlight into arbitrary patterns, including ray-tracing visualizations and printable model generation. It documents the full design, from optics math to 3D printing and assembly.

## Use cases
- generate a 3D-printable mirror array that projects an arbitrary image with sunlight
- compute mirror angles to reflect light onto a target focal plane
- learn the optics and geometry behind angled mirror arrays
- visualize ray tracing of sunlight through a mirror grid
- build a custom sunlight projection art project

## When to choose
- you want to fabricate a physical mirror array projecting a custom pattern
- you want a worked educational example of reflection geometry and ray tracing in Python

## When to avoid
- you need production optics simulation software
- you want a ready-made product rather than a DIY project requiring a 3D printer and assembly

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: simulation, graphics, math, data-visualization
- domain: simulation, graphics, hardware, education
- platform: python, cross-platform
- tags: 3d-printing, optics, ray-tracing, jupyter-notebook, mirror-array, physics

## Member repositories
- bencbartlett/3D-printed-mirror-array (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:58.616505+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:25:24.355102+00:00, confidence not recorded.
  - readme: https://github.com/bencbartlett/3D-printed-mirror-array (fetched 2026-08-28T04:06:58.616505+00:00, sha 9a8ed8ac4fd2)
- Data as of 2026-08-30T08:39:29.467469+00:00.