Use the video and the parts list to help you make your Shadow Box in TinkerCAD!
Bottom 4.75" x 4.75" x 1/8"
4 x Side Rails 75" x 75" x 6"
4 x Side Panels 3.5" x 6" x 1/8"
Top 4.75" x 4.75" x 1/8"
Use the video to create the .svg file for the Laser. There are resources below with .stl files to add to your design.
.svg librarys