heptagon Challenge

Challenge yourself to create a polyhedron with three or more heptagon (7 sided) faces. This one has 24 faces total; with four heptagon faces, eight trapezoid faces, four diamond faces, and eight triangle faces.

Step 2

Cut out pattern Part 1 and Part 2 by cutting on all black lines, including the line between the two Flap A’s and between the two Flap B’s; and including the “cactus’ shape cutouts that are accessible from the edge of the part.

STEP 3

On both Part 1 and Part 2, temporarily fold the line between the two heptagons and the line between the diamond and the triangle as mountain folds to make starter cuts in the remaining cutouts. Finish the cutouts by cutting on the black lines around each cutout.

Step 4

On both Part 1 and Part 2, fold all green lines as valley folds.

Step 5

On both Part 1 and Part 2, glue Flap A to the other Flap A, Flap B to the other Flap B, Flap C to the other Flap C, Flap D to the other Flap D, Flap E to the other Flap E, and Flap F to the other Flap F.

Step 6

Complete the project by attaching Part 1 to Part 2. Start by gluing Flaps M, N, and O on Part 1 to Flaps M, N, and O on Part 2. Next glue the two Flap L’s on Part 1 to the two Flap L’s on Part 2, and the two Flap W’s on Part 1 to the two Flap W’s on Part 2. Then glue Flaps H, G, and J on Part 1 to Flaps H, G, and J on Part 2. Next glue Flaps V, U, and T on Part 1 to Flaps V, U, and T on Part 2. Then glue the two Flap K’s on Part 1 to the two Flap K’s on Part 2, and the two Flap S’s on Part 1 to the two Flap S’s on Part 2. Finally glue Flaps R, Q, and P on Part 1 to Flaps R, Q, and P on Part 2.