DigiTool — Photogrammetry Table and Printed Rock

This is the file that was used to create the photogrammetry table. One piece was cut like this, and the other was cut with a hole in the center allowing it to rotate around a center point.

The phogrammetry table is constructed from two laser cut surfaces mounted in the center by a ball bearing lazy susan. In one orientation, the object sits flat while the camera ring rotates around the object.

If the object is larger, the table can be flipped over, which allows it to function as a normal lazy susan, where a stationary camera is off to the side and the object rotates

This allows the object to be smoothly rotated and evenly photographed from every angle.

The table is laser-etched and notched on both sides every 10 degrees, with small notches every 5 degrees. It was designed to be easy to feel and twist without looking, so the operator can keep their eyes on the camera while rotating even increments.

I photographed and re-constructed a Quartz rock that I found using AgisoftPhotoscan. This is the raw mesh.

I then cleaned up the resulting mesh using InstantMesh & Rhino, and 3D printed it on the NV Bots printer.

Here is the final 3D print. The square 'pixely' patterns on the surface are artifacts of mesh decimation done to clean up the raw re-constructed geometry.