Colors from the color
cube apply to the duo-tet within. The colors
appear on the visible parts of the two overlapping
tetrahedrons. To make a model, open
the page-size
layout. Print using
photo paper at 720dpi for clear colors.
If using office paper, mount on cardboard for stiffness.
The steps are cutting, folding, taping,
and building shown below.
To see how it looks, go to the last photo at the
bottom of the page or see an object
movie. See
also the color cube model or this
page.
Cutting
Cut
down the center. 
Cut
around left side for base tet. Cut right side in
four parts for small tets.
Folding
Crease
folds of tets. 
The
left side has triangle points in red, green, blue
(RGB) and white, which is the base tet. Fold back
along the three lines between the big triangles.
Each small tet is made of four equal-sized triangles.
A center triangle is surrounded by three othens.
Fold back along the three lines between the triangles.
Repeat for each of four small tets.
Taping
Tape
edges together. 
To
form the base tet, tape three faces together. To
form a small tetrahedron, tape the edges together
(three seams). Repeat for three other small tetrahedrons.
Building
Locate
tet position. 
Find
a small tet triangle with solid color and a letter.
On base tet match color of lower triangle apex,
for example green to green. Match letters in small
upper triangles of base and small tet. The letters
are C, M, Y, K corresponding to the colors of the
tips of the large tet created by four small tets
(cyan, magenta, yellow, and black). Use double-stick
tape or glue to attach small tet to base tet.
Add
all four tets. 
For
stability and strength, you can
tape the edges or corner
joints between small tetrahedrons on the outside.
Back
to Duo-Tet
Color Cube.
Model layout
Actual
color