Turning 2D jpg images into 3D stl files for 3D printing using freeware

Michael Bennemann, bionic scientist

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7 Lessons (18m)
    • 1. Introduction

    • 2. What you need and how it works

    • 3. Installation of ImageJ and BoneJ

    • 4. Designing jpg images in Gimp

    • 5. Arrangement of the images in one folder

    • 6. Generation of stl files in ImageJ

    • 7. Effects of resampling and Outlook


About This Class

Hi Makers,

in this class I will show you a method how to turn black and white jpg images into 3d stl files for 3D printing. For this method you only need free software. Once you have installed the software and designed your jpg images your stl file will be ready in about one minute. Below you can see a simple example of a stl file I designed using the method (beside from the example shown on the cover of the class):


Summary of all steps to generate a stl file:

  • Install ImageJ and BoneJ.

               ImageJ: https://imagej.nih.gov/ij/download.html

               Version: bundled with 64-bit Java 1.6.0_24

               BoneJ: http://bonej.org/

  • Design greyscale or black and white jpg images (RGB images and other formats were not supported. All images must have the same size).
  • Arrange the images in the right order and number in a folder in which nothing is in it aside from the images.
  • Import the images into ImageJ (File – Import – Image Sequence). Mark only the first image in the folder and click open.
  • When the upload is ready open Plugins – BoneJ – Isosurface. Adjust Resampling on 1 or higher if you what to achieve round edges.
  • When the 3d object is shown go to File – Export surface as – STL (binary).