Pixel Knock Grid Generator
Upload an image and generate a 3D printable pixel grid STL for pixel art, mosaic, knock board, and craft block projects. All processing runs locally in your browser.
Pixel Knock Grid Generator
Turn an image into a 3D printable pixel grid STL. No base plate, just 1mm walls around each active pixel.
Images are processed locally in your browser.
For real printing, 4-8 colors are recommended. Increase this if you want more detail.
Balanced color reduction, recommended.
Merges close colors to reduce gradients and similar shades. Higher values create fewer, more printable colors.
Adds empty space around the subject for a more centered and finished layout.
Controls the fit between blocks and the grid. Larger values make blocks looser, smaller values make them tighter.
Recommended: 0.4mm. If blocks are too tight, increase to 0.5-0.6mm. If they are too loose, decrease to 0.2-0.3mm.
Similar colors are merged to reduce extra groups caused by shadows, gradients, and highlights. For real-world making, 4-8 colors are recommended.
Bed fit
The usable area may be smaller because of slicer limits, nozzle mode, purge/wipe towers, or protected zones. Always check the final layout in your slicer.
The project ZIP includes the printable STL grid, OBJ + MTL color preview, separated color block OBJ + MTL, PNG preview, CSV color list, and README.
The color preview OBJ shows the assembled result. The separated color blocks OBJ places blocks by color group for easier printing or preparation.
What is this tool?
Pixel Knock Grid Generator turns an image into a 3D printable pixel grid for hands-on craft projects. It runs locally in your browser, creates a no-base STL grid, and calculates the required block count for each color group.
How to use it
- 1Upload a PNG, JPG, or WEBP image.
- 2Adjust grid count, max colors, cell size, wall thickness, and wall height.
- 3Choose a crop mode, set padding cells, remove near-white background, and generate a preview.
- 4Review required blocks, color groups, and overall frame size.
- 5Download the STL grid, PNG preview, CSV color list, or the complete project ZIP.
Privacy note
Pixel Knock Grid Generator is designed to run in your browser when possible. For browser-only tools, user content is not intentionally uploaded to OneClick Tools servers. Some pages may still use normal hosting, analytics, search indexing, or advertising infrastructure.
Common use cases
Finish common web tasks faster without a heavy app.
Prepare content before publishing, sharing, or testing.
Check browser-generated results before using them elsewhere.
Handle quick productivity workflows without creating an account.
Related tools
More tools from the same area of OneClick Tools.
Filament Cost Calculator
Estimate filament cost from spool price, spool weight, model weight, and waste.
Print Time Cost Calculator
Estimate 3D print cost from print time, machine rate, material, labor, and margin.
Filament Length Calculator
Estimate filament length from weight, diameter, and material density.
FAQ
Is this tool free?
Yes. This tool is free to use on OneClick Tools.
Does this tool require login?
No. You can use this tool without creating an account.
Is my data uploaded?
This tool is designed to run locally in the browser where possible. Browser-only tools do not intentionally upload user content to OneClick Tools servers.