SVG or text → 3D-printable LED sign
Type your sign or use an SVG, then build channel letters with a face-plate ledge or an LED channel sized to your strip. Every dimension is in millimetres; files stay private in your browser.
Fit: diffuser finishes flush with the top rim.
Capabilities
Built for real LED builds
- SVG or text input: type a sign, choose from built-in fonts, or upload your own TTF, OTF or WOFF font; glyphs become real vector outlines for preview and export.
- Channel-letter mode: filled SVG shapes become hollow boxes — floor plus walls following the artwork outline, holes included — ready for LED strips.
- Face-plate ledge: a short inward shelf at YOUR distance from the top, with configurable width, vertical height and angled gusset back to the main wall.
- LED channel mode: sweeps a U-channel along every SVG line with the interior width YOU set — your strip’s width plus clearance, regardless of the SVG stroke width.
- Sharp-corner control: safe bevel joins prevent crossed walls on acute artwork, while optional miter joins preserve sharp points when there is enough room.
- Click any generated wall to remove or restore only its helper ledge; the structural wall always remains, and exports match the preview.
- A fixed metal preview finish makes wall and helper geometry easy to read, with color and clean feature-edge wireframe controls directly on the 3D viewer.
- Every parameter in millimetres, with exact number inputs: sign width, wall and floor, ledge position/width/height/angle, diffuser thickness, and LED channel width.
- Measures the exact centerline in LED-channel mode and the combined wall path in channel-letter mode, live as you tune it.
- Exports print-ready STL (flat on the bed, Z-up) or GLB — nothing is uploaded, it all runs in your browser.
Process
How it works
- Choose SVG or textDrop a logo or line-art SVG, or type the sign and choose a built-in or custom font. Filled outlines build channel letters; paths can also build LED channels along their lines.
- Size the channel to your partsSet the sign width, wall height/thickness, and the supported ledge for your acrylic face — or the channel width for your LED strip. The fit readout compares diffuser thickness with its distance below the rim.
- Print, then light it upDownload the STL, print it (no supports needed — the ledge is a printable step), lay your LED strip inside and drop the diffuser onto the ledge.
Notes
Good to know
- Walls and floor are printed as overlapping solids (a multi-shell STL) — every slicer merges them automatically; mesh checkers may report multiple shells, which is expected.
- Safe bevel joins are the default for acute LED-channel corners. Miter joins can still pinch when the artwork is narrower than the chosen channel width.
- The acrylic face plate itself isn’t exported. Use the same vector artwork as a starting point, then add your cutter/laser clearance in the design app; the fit readout checks its vertical position.
- Built-in fonts cover common Latin characters. For other scripts, upload a TTF, OTF or WOFF font that contains the required glyphs.
FAQ
Questions, answered
How do I make a 3D-printed LED neon sign from my logo?
Export the logo as an SVG, drop it here, pick channel-letter mode and your sizes, then print the STL. Lay LED strip or neon flex inside the cavity, and drop a diffuser plate onto the built-in ledge. Everything runs locally in your browser.
What is the ledge/shoulder for?
It seats the acrylic face plate. You choose its distance below the top, projection width, vertical lip height and support angle. The ledge then slopes back to the constant-thickness wall instead of extending down to the base.
My LED strip is 8 mm wide — how do I make the channel fit?
Use the “LED channel along lines” mode and set the channel width to your strip plus clearance (for example 9 mm for an 8 mm strip). The channel interior uses exactly that width no matter what stroke width the SVG has. Keep safe bevel corners for acute logos.
Can I remove a helper where it is not needed?
Yes. Click a wall in the 3D preview, then choose Remove helper in the on-canvas selection bar. Only that wall’s ledge and angled support are removed; the full-height structural wall stays in place. Select it again to restore the helper.
How much LED strip do I need to buy?
In LED-channel mode, the tool measures the exact centerline at the printed size; add a little spare for connections. In channel-letter mode it reports the combined wall-outline length because the final LED route depends on how you lay the strip inside each cavity.
Does it work with text?
Yes. Switch the input panel to Text, type your sign, then choose a built-in font or upload a custom TTF, OTF or WOFF file. The tool converts every glyph to vector outlines locally, so the same shapes appear in the preview and STL/GLB export.
Is the model watertight and printable?
Each wall and floor is a closed, watertight solid; they overlap on purpose and your slicer unions them at slice time — the standard construction for printed channel letters. Print with the opening facing up; no supports are needed.
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