3D Scanning and Printing
I used tinkercad to design my 3d model. Following is my step.
1. I created a cube.
2. I created a sphere whose diameter is slightly bigger than cube's length.
3. I put the sphere into the cube.
4. I maked the sphere become hollow.
5. I grouped the cube and sphere.
6. The cube become hollow.
7. I put a sphere whose diameter is smaller than cube's length into cube.
I printed it in the lab by using Ultimaker.
I put it into water.