How to use Aruco Markers to draw digital models from physical parts

Creating clean digital copies of physical objects is often cumbersome and time consuming. This example shows how to create lofted surfaces from Aruco markers tracked using Fologram, allowing surface and strip geometries to be quickly and easily translated to Rhino. The definition isn’t complex and can be used both as a learning resource for advanced grasshopper users to build a custom digitization system, or as a tool for fabricators and beginners to use straight out of the box.

Some objects in physical space contain information that can’t easily be measured with a tape measure, like twists and rotations in curving strip geometries. If you’re a designer or fabricator looking to use Fologram to measure, check accuracy or simply digitize physical objects, this tool will give you the power to quickly do so with a tap of your finger.

The tool works by tracking any Aruco markers in your devices vision, and drawing a line in the y-axis of the marker whenever the user makes a tap gesture. The strip surface is formed by lofting these profile lines together.

Want to try augmenting tools and equipment in physical space? Check out our article ‘Augment a physical tool with a holographic overlay with Fologram in these 5 simple steps’ to learn more.