3MF Decal Tool

3MF color-print branding: place logos or text with surface wrap and keep color info for modern slicers, 3MF in, 3MF out.

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About This Tool

This tool is for adding image or text decals to 3MF models whenever a brand mark needs to survive into a color-print workflow. Decals conform to curved surfaces, trim at sharp edges, and stay as textured layers inside the 3MF so slicers can preview color. Export remains 3MF, with no forced conversion to GLB. For the best result, use slicers and printers that understand 3MF color and texture, such as Bambu Studio, PrusaSlicer, or OrcaSlicer.

Tips

  • 1Input and output stay 3MF to fit color-print pipelines
  • 2Transparent PNGs make multi-color previews much clearer
  • 3Surface wrap plus corner trim behaves like a physical sticker
  • 4Add multiple decals and adjust each one separately
  • 5Final print look depends on slicer and printer color support
  • 6Skip the GLB detour when you're already working in 3MF

About Configuration Options

Decal source

Type

DefaultImage

Choose an image decal or a text decal. Images work well for logos; text suits labels and signatures.

ImageRecommended

Upload PNG, JPG, or WebP (transparent PNG recommended).

Text

Enter text, then adjust size and color before placing.

Image file

In image mode, upload the sticker artwork. Transparent PNG looks best on curves and sharp edges.

Text content

In text mode, type the words you want to place on the model surface.

Text style

Font size

Default64px

Range24px – 160px

Font size in the text texture canvas (pixels). Larger sizes look sharper but use more texture space.

Color

Default#ffffff

Fill color of the text decal. Works well with a transparent background.

Snap & Align

Enable Snap

DefaultOn

Snap decals to model keypoints within the tolerance radius.

Alignment Guides

DefaultOn

While dragging, align to the model bounds, center planes and other decal centers, showing guide lines.

Vertex

DefaultOn

Snap to the nearest vertex.

Edge Midpoint

DefaultOn

Snap to the nearest edge midpoint.

Face Center

DefaultOn

Snap to the center of triangle faces.

Tolerance

Default1

Range0.001 – 1000 · step 0.01

Snap search radius, relative to the model size. Larger values make it easier to hit keypoints.

Place & edit

Place

After preparing a decal, click the model surface to place it. Drag empty space to orbit the view.

Move

Select a decal and drag the center handle. It slides along the surface and can wrap to the other side.

Scale

Default0.18

Range0.05 – 0.6 · step 0.01

Drag the scale handles after selecting a decal. Size is relative to the model bounding-sphere radius, with a default initial value and editable range.

Rotate

Drag the ring handle to spin around the surface normal. Snaps to 90° by default; hold Shift for free rotation.

Export

Independent layers

Each decal exports as a separate mesh layer without modifying original textures. Select, hide, or delete them individually in Blender and similar apps.

Format Information

Input / Output

Extension:
3mf
Full Name:
3D Manufacturing Format
Type:
3D Model
Format:
3MF
Open With:
Windows 3D Viewer3MF Viewer OnlineBlender3D Model Viewer
Description:
3MF is a modern 3D printing format from the 3MF Consortium, based on XML and packaged as a ZIP container. It preserves mesh data and supports per-part color, material, texture, and print properties. It is recommended for multi-color and multi-material printing. Major slicers (Bambu Studio, PrusaSlicer, OrcaSlicer) have native support. Compared to STL, 3MF carries richer information but is more complex. Some older slicers and printers may not recognize it. When converting from other formats, color and material mapping depend on source data. For simple single-color printing, STL remains sufficient. For multi-color, multi-material, or print parameter transfer, choose 3MF.

Notes:

  • Some older slicers and printers may not support 3MF
  • More complex than STL but carries richer information

Supported Features:

  • Per-part and per-vertex color support
  • Material and texture preservation
  • XML-based with ZIP compression
  • Native support in Bambu Studio, PrusaSlicer, OrcaSlicer

How to Use

1

Upload a 3MF

Drop a 3MF model onto the page or select it manually. The file never leaves your browser.

2

Prepare a Decal

Upload a logo image or type text and choose its font size and color.

3

Place and Adjust

Click the model surface to place the decal, then refine its position, scale, and rotation.

4

Export 3MF

Download the 3MF with decal textures retained, ready for slicer color preview and printing.

Frequently Asked Questions

View all FAQs
Q

Is the export still 3MF?

A

Yes. Both the input and output are 3MF, so nothing is forced through GLB. Decals stay as textured layers inside the 3MF so slicers can preview color, and each decal can be fine-tuned independently.

Q

Is it suitable for color 3D printing?

A

Yes for workflows that rely on 3MF color and texture. The final result depends on how your slicer and printer handle multi-color output, so check their 3MF support first.

Q

Can I add multiple logos?

A

Yes. Start by placing one decal on the model surface, then keep adding more. Position, size, and rotation are adjustable per decal, and every decal is kept as an independent layer in the exported 3MF.

Q

Do decals follow curved surfaces?

A

Yes. Decals project along the curved surface and auto-trim at sharp corners, giving a result close to a real sticker. On continuous shapes like cylinders and spheres, the wrap looks natural without stretching artifacts.

Q

Can I use transparent PNG?

A

Yes. Transparent areas are preserved, so the model surface shows through wherever the artwork is empty. Use a transparent-background PNG for logos without a solid backing plate.

Q

When should I use GLB decal instead?

A

Use GLB decal for web/AR textured stickers and DCC workflows. Choose 3MF when slicer multi-color preview matters more. True embossed STL branding is planned as a separate tool.