Image Lab · 4 minute guide
Image Lab: Image Slicer
Split one large image into an aligned grid of full-resolution tiles — with overlap for clean seams — to engrave beyond your bed size. Free.
By Scott Bedow, Founder & Lead Developer · Published July 4, 2026 · Updated July 31, 2026
Manufacturing manager who runs CO2, diode and MOPA fiber lasers; builds and maintains every Reticle Red tool.
Method — Walked end to end in the live tool before publishing. Screens and step order match the current build; settings shown are starting points to validate on scrap.
What this tutorial covers
- Divide artwork into up to a 10 × 10 grid of full-resolution PNG tiles.
- Pixel overlap margin for clean seams when reassembling engraved sections.
- R#C# tile labels and a live grid overlay preview.
- Download tiles individually or bundled as one ZIP — client-side and free.
1. Load the full artwork
Upload the image that must be divided into panels. Check the complete composition and image dimensions before selecting the tile layout.
2. Set the grid
Choose the rows and columns for the physical panel arrangement. Inspect where grid boundaries cross faces, lettering and other features that should remain readable across the assembled piece.
3. Slice and inspect the downloads
Run the slice operation and inspect the resulting tiles and their order. Keep their intended arrangement with the downloaded files and verify panel dimensions in the receiving production workflow.
Validate the workflow on your machine
Treat the finished file as a controlled starting point, not a universal machine recipe. Confirm the artwork dimensions after import, verify focus and lens selection, and run a small test on scrap from the same material batch before committing the production piece. Change one variable at a time when tuning speed, power, frequency, line interval, or pass count. Record the machine, source wattage, lens, material finish, focus method, and final settings with the saved job. That short production note makes the result repeatable for the next operator and prevents a strong screen preview from being mistaken for a proven burn.