# Turning photos into dot art with the Photo Halftone Generator

> your photo rebuilt from brightness-sized dots

Halftone is the newspaper-photo trick: thousands of dots, each sized by how dark its patch of the image is, fuse into a portrait when you step back. This tool converts your photo into exactly that, as true vector circles rather than a dithered bitmap, so the dots cut and engrave perfectly at any scale. Everything processes locally; the photo never leaves your browser.

Engraved on wood or acrylic it reads as gallery-style pop art; printed in 3D it becomes a tactile raised-dot plaque whose image emerges from raking light.

## What you need

- **Laser engraving:** laser cutter, 3 mm [laser-grade plywood](https://yxecreations.com/collections/laser-grade-plywood), two-tone [acrylic](https://yxecreations.com/pages/acrylic-sheets), or coated metal; [standoff spacers](https://yxecreations.com/products/4-pack-anodized-standoff-spacers) make a slick wall mount
- **3D printing:** any FDM printer, one or two filament colors

## Step 1 - Upload and frame



Open the tool and upload a photo. Faces and high-contrast subjects shine in halftone; flat, low-contrast images turn to mud. Use the **Gamma**, **Brightness**, and **Contrast** sliders to stretch the tonal range before worrying about dots.

## Step 2 - Tune the dots



- **Width** sets the physical size; halftones need viewing distance, so 150 mm is a practical minimum for faces.
- **Dot Pitch** is the spacing of the grid; smaller pitch means more dots and more detail, but mind your machine's minimum feature size.
- **Max Dot Size** caps how big the darkest dots grow; just over the pitch lets shadows fuse solid.
- **Pattern** picks the grid: **Square grid** is classic print, **Hexagonal** packs smoother gradients, **Jittered** breaks the mechanical feel for an organic look.
- **Invert** flips dark-dots-on-light to light-dots-on-dark; choose based on whether your process marks dark (wood engrave) or light (painted acrylic reveal).
- **Add cut frame** appends a border rectangle so the panel cuts out in the same job.

## Step 3 - Export



Download the **SVG** for laser work, or set **Base Thickness** and **Dot Height** and download the **STL**/**3MF** for a raised-dot plaque.

## Laser Engraving & Cutting

### Engraving the halftone



1. Import the SVG; the dots are filled vector circles, so raster-engrave them or, on small pitches, cut them clean through for a light-through panel.
2. On plywood, engrave dots dark on the bare face; on painted or two-tone acrylic, engrave through the top color with Invert chosen to match.
3. Run a 30 mm test square of the densest area to dial power before committing to the panel.
4. Cut the frame border last.
5. Step back three metres; halftones are judged from across the room, not on the bed.

## 3D Printing

### Printing a raised-dot plaque



1. Set **Base Thickness** around 2 to 3 mm and **Dot Height** 1 to 2 mm, then export the 3MF.
2. Keep Dot Pitch at 2 mm or more so each dot is several extrusions wide.
3. Print base-down with a 0.4 mm nozzle at 0.12 mm layers for clean dot tops.
4. Swap to a contrast filament exactly at the base/dot boundary layer for a two-color image with zero painting.
5. Hang it where side light rakes across the dots; the relief image pops hardest in angled light.

## Make it yours

- Engrave a wedding portrait halftone on a walnut panel for a fifth anniversary.
- Pop-art pet portrait on white acrylic with Invert on, mounted on standoffs.
- Cut the dots fully through thin plywood and backlight the panel with warm LEDs.
- Band-poster style: halftone a concert photo and engrave it onto a clipboard or deck.
- Print a tactile portrait plaque as a meaningful gift for a low-vision relative.
- Hexagonal pattern plus jittered comparison: run the same photo both ways and pick by eye.
- Halftone a city skyline as a long, narrow mantel piece.
- Engrave onto [leatherette](https://yxecreations.com/pages/leatherette) for a halftone photo patch.

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Open the Photo Halftone Generator: https://www.mylasertools.com/photo-halftone-generator
Read online: https://www.mylasertools.com/learn/guides/photo-halftone-generator