Icosahedrons
An Icosahedron is comprised of twenty equilateral triangles.
Icosahedron That Starts with Stellated Octahedron
- Start with a Stellated Octahedron
- Begin with a cube
- Use the line tool
to connect corner to corner:
- Connect all corners:
- Delete all the edges of the original cube:
- Color the faces (you should have 8 colors)
- Select the entire model, press space bar and click on an edge. Select Intersect Faces>with Selection:
- Delete the 8 pyramids:
- Ctrl+click on a line and select Divide:
Divide each segment into thirds.
- Using the line tool, divide the face like this:
- Continue dividing all the faces:
- Erase the pyramids and extra edges that are left because of dividing the lines into thirds:
- Using the line tool, connect the midpoints
- Continue connecting midpoints until you have the icosahedron
. Click on the midpoint at the top of the rectangle and slide left to the origin
and click at the origin. Press either CTRL or Option to make a copy, then click anywhere for the first rotation, but then move the cursor until the copied rectangle is vertical (rotated 90°):
and orbit the object until you get a view similar to this:
