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by Rober Rollin
With just the wave of a magnet, MIT researchers can control soft 3D printed structures and make them complete a range of movements, such as crawling, rolling up or jumping. The engineers believe this technique could be used for "promising applications" in biomedicine.
OpenSCAD is a powerful, free and open source modelling tool that lets you make precise 3D models with just a few lines of code. With the right setup, you can even make adaptable, "parametric" models. In this OpenSCAD tutorial, we'll get acquainted with the software, review a simple example and then discuss how to make parametric designs.