I am really enjoying Tinkercad, it is so easy to use! My next project continued along the drinks coaster theme as they are easy to make.
This time I used the "voroni" shape and put it inside a square. This technique created the pattern in the middle of the coaster. I printed it using Simplify3D basic medium settings, and the Flashforge Creator Pro.
Below I have linked the Tinkercad file so you can open and it and tinker with it yourself.