For this scan mode, the easiest way to create a reference is by marking the corners of the foam box directly in the foam itself. To do so, we suggest 3 markers: two on one side, and one on the other. By marking the 4 corners, this creates a risk that the sides will be aligned incorrectly for the reconstruction. By having sides marked differently, this helps match the sides when aligning both parts of the scan.

One of the suggested ways to mark the foam box is with a simple pen, as illustrated below. The important part is to mark the same depth so that the point can be matched at the same height in the alignment for the software.