V3 Feature Series (10 of 69)
Modifier · Lines

Overlay for Pen Plotters

Overlay in 3DPlotter V3 (Add Modifier → Lines): Let the layer’s image decide which strokes survive. Try in Studio.

Overlay demo

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I added Overlay under Add Modifier → Lines. Let the layer’s image decide which strokes survive.

How to use Overlay

  1. Select the layer whose linework you want to transform
  2. Open Studio → Add Modifier → Lines → Overlay
  3. A modifier node is appended to the layer stack (non-destructive)
  4. Reorder modifiers in the stack; later modifiers see earlier output
  5. Tune parameters in the modifier card in the right sidebar; preview updates on the canvas

Menu path: Add Modifier → Lines → Overlay

Key controls

  • Acts On: own, options: This Layer, This Layer and Below
  • Keep: keepDark, options: Where the image is dark, Where the image is light, Only at edges
  • Threshold: 0.5 (0-1 step 0.01)
  • Tonal Blend: 0 (0-1 step 0.02)
  • Drop Shorter Than: 0.4mm (0-20mm step 0.1)

Tune acts on, keep, threshold, tonal blend, and drop shorter than in the right sidebar. Open Studio to see every control.

Modifier stack: May add, drop, or reorder paths; selection maps reset for this layer

Acts On: Choose *This Layer* or *This Layer and Below* in the right sidebar.

What I plot with Overlay

  • Pen-plotter art on Bambu Lab, Prusa, Creality, and other pen-holder setups
  • Layered linework exported as G-code with pen-up travel
  • Combined with other V3 objects and modifiers in the same document

Frequently asked questions

Where is Overlay in the menu?

Add Modifier → Lines → Overlay

What can I adjust?

Start with the key controls above, then fine-tune everything else in the right sidebar inside Studio.

Is this non-destructive?

Yes. Modifiers run on the layer stack without destroying source elements. Reorder or remove the modifier node to revert.

Does Overlay work with multi-pen plotting?

Yes. Use Pen Palette on a layer to split linework by color, or set per-path ink on modifiers like Offset.

Try Overlay

Open 3DPlotter Studio, follow the steps above, and export a test plot. Lifetime V3 access is €29.90. Creator Bundle (€39.90) adds Map to Pen Plot, String Art, Wax Seal, and 3D Model to SVG.

More tools: Feature hub · V3 launch

Topics

Overlay pen plotterOverlay 3DPlotter3DPlotter OverlayLines pen plottingpen plotter softwareBambu Lab pen plotter3D printer pen plottingplotter G-code generator

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Overlay for Pen Plotters | 3DPlotter V3 Modifier