UnNano

A GUI Tool for Converting Thorlabs Educational AFM Data to 3D Printable Mesh (.stl)

UnNano enables the conversion of Thorlabs AFM data into 3D printable meshes in ~100ms, providing high-resolution visualizations of 20×20 micrometer samples. Normalization of inputs occurs but relative height differences are preserved.

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Features

• Safe removal of even extreme scanline artifacts
• Fast Plane Leveling Tool
• Adjustable Model Label

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Usage

1. Prepare the Directory
   Ensure that the unnano.py file is located in a folder containing a subfolder named model_template.

2. Install Dependencies
   Install the required dependencies by running the following command:

   pip install -r requirements.txt

3. Run The Program

   Start unnano.py

4. Add AFM Data

   Drag in a Thorlabs AFM output csv (in semicolon-delimited CSV format)

5. Generate STL

   Hit the generation button and retrieve your 3D .stl file

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Resolution Details

The input CSV file is first converted into a normalized 32-bit TIFF, which preserves the relative height accuracy from the AFM data. This TIFF file is then applied to a high-resolution mesh consisting of 652,864 faces. This mesh has more than sufficient resolution to faithfully represent the height data at the highest AFM resolution of 500×500 pixels.

• Blender’s built-in texture interpolation is applied by default to smooth the displacement across the mesh.

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Examples

100x100 Pixel Scan:

500x500 Pixel Scan: