The fourth (4th) of five Platonic Solids.
No brims nor supports used. Any material.
Great for student “hands on” learning. They can measure the sides and angles to verify they are equal.
Can use the “Shell” option in Fusion 360 to increase print speed and decrease material. I used 3mm wall, and it was still very strong.
A valuable video at
The author marked this model as their own original creation.