IRRATIONAL ROTOR
Is it a rotor to catch the wind? Or is it irrational? Try it and see !
Project Info
Paper required: two sheets 8 1/2 x 11 inches (or A4)
Finished Project size: 3 inches (7 cm)
Difficulty Level: Advanced
INSTRUCTIONS
STEP 1
Print the Irrational Rotor pattern onto the two matching papers of your choice.
Read the pattern key included in the General Instructions.
Step 2
Cut out one of Pattern Part 1 and four of Pattern Part 4 by cutting on all black lines, including lines between Glue Flaps E and F and Glue Flaps G and H.
Photo 1. Part 1 and Part 2, After Step 2, Inside of Pattern
Photo 2. Part 1 and Part 2, After Step 2, Outside of Pattern
STEP 3
Fold the patterns on all red and green lines. Green lines are valley folds and red lines are mountain folds.
Photo 3. After Step 3, Inside of Patterns
Photo 4. After Step 3, Outside of Patterns
Step 4
On Part 1, Glue Flap N to the other Flap N and glue Flap M to the other Flap M. On each of the four Part 2’s and the Part 1, Glue Flap A to the other Flap A and glue Flap B to the other Flap B.
Photo 5. After Step 4, Inside of Patterns
Photo 6. After Step 4, Outside of Patterns
Step 5
On each of the four Part 2’s and the Part 1, Glue Flap C to the other Flap C, and glue Flap D to the other Flap D.
Photo 7. After Step 5, Inside of Patterns
Photo 8. After Step 5, Outside of Patterns
Step 6
Next attach two of the Part 2’s together. Do this by gluing Flap E on the first Part 2 to Flap G on the second Part 2; and Flap F on the first Part 2 to Flap H on the second Part 2.
Photo 9. After Step 6, Inside of Project
Photo 10. After Step 6, Outside of Project
Step 7
Continue by attaching the 3rd and 4th Part 2’s to the assembled project. Do this by gluing Flap G on the 3rd Part 2 to Flap E on the second Part 2; Flap H on the third Part 2 to Flap F on the second Part 2; Flap G on the 4th Part 2 to Flap E on the third Part 2; and Flap H on the fourth Part 2 to Flap F on the third Part 2.
Photo 11. Project after Step 7
Step 8
Complete the project by attaching Part 1 to the assembled project. Do this by gluing Flap G on Part 1 to Flap E on the fourth Part 2; Flap H on Part 1 to Flap F on the fourth Part 2; Flap E on the Part 1 to Flap G on the first Part 2; and Flap F on the Part 1 to Flap H on the first Part 2. Finally, glue each of the four Flap O’s on the Part 1 to a Flap K on one of the Part 2’s; and each of the four Flap P’s on Part 1 to a Flap J on one of the Part 2’s.
Photo 12. Completed Irrational Rotor Project
Photo 13. Another View of Completed Irrational Rotor
More Examples
Two more example Irrational Rotor projects.
Photo 14. Second Example of Irrational Rotor Project, View 1
Photo 15. Second Example of Irrational Rotor Project, View 2
Photo 16. Third Example of Irrational Rotor Project