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Aveuglami project - folding sheet
Roulette
| Author | Bascetta Paolo |
| Category | decoration |
| Difficulty | ** |
| Format | square |
| Base | diamond |
| Text | Small, very simple modular assembly, which allows you to create a sort of 8-pointed
windmill.
Elementary module 1. Take a square sheet, hold it on the lower tip. 2. Bring the right vertex to the left vertex by a valley fold from right to left on the vertical diagonal. We obtain a triangular shape formed by two triangular flaps linked on the right by a vertical hinge fold. 3. Bring, by an oblique valley fold from left to right passing through the lower vertex, the lower left edge of the front flap on the hinge fold located on the right. 4. Flip the fold from right to left. 5. Bring, by an oblique valley fold from right to left passing through the lower apex, the lower right edge of the front flap on the hinge fold located on the left. We obtain a triangular shape with an elongated point downwards. 6. Bring, by an oblique valley fold from right to left passing through the upper vertex, the upper right edge of the front flap on the hinge fold located on the left. The fold must be made through all thicknesses. 7. Flip the fold from right to left. 8. Bring, by an oblique valley fold from left to right passing through the upper vertex, the upper left edge of the front flap on the hinge fold located on the right. The fold must be made through all thicknesses. We obtain a triangular shape which has a small triangular flap at the top. This triangle has a small free side which starts from the left vertex of the shape and joins obliquely to the right side of the shape. 9. Fold the triangular shape in half, through all layers, using a valley fold that starts at the left apex and follows the bottom edge of the small triangular flap at the top of the shape. Unfold. Fold in the mountains on the same fold. Unfold. 10. Unfold the small triangular flap at the top by rotating it from right to left on its hinge edge. 11. Unfold the large lower triangular flap by rotating it from right to left on its hinge edge. We obtain a triangle marked by: - an oblique valley fold starting from the lower vertex and going to the upper left side of the triangle, - an oblique valley fold starting from the upper summit and going to the oblique valley fold starting from the bottom. 12. Bring the upper left edge of the triangle to the right hinge edge, by a valley fold using the valley fold that starts from the top vertex. The existing valley fold must be extended. 13. Flip the fold from right to left. 14. Unfold the small triangular flap at the top by rotating it from left to right on its hinge edge. 15. Unfold the large lower triangular flap by rotating it from left to right on its hinge edge. 16. Bring the upper right edge of the triangle to the left hinge edge, by a valley fold using the valley fold that starts from the top vertex. The existing valley fold must be extended. 17. Open the folding by rotating the rear flap forward using the hinged edge. We obtain a base of the kite with a sharp tip pointing upwards. 18. Flip the fold from right to left. We obtain a kite with a sharp tip pointing upwards. The axis of symmetry is marked by a vertical valley fold. On either side of the lower summit there are two oblique valley folds which join respectively the upper left and right edges of the kite. From the points of intersection of these valley folds with the edges start small oblique valley folds which join the vertical valley fold. 19. Using the two small public valley folds which start from the edges and which join the vertical valley fold, straighten the upper point bringing it almost vertical. The folding is three-dimensional. We cannot reach vertical. 20. While slightly pushing the acute point towards you, transform the valley fold which starts from the bottom of the mountain fold to the valley fold which makes the acute point three-dimensional. The sharp point descends little by little and encloses the top of the broad point which flattens. Folding becomes two-dimensional again. To reverse the valley fold, you must start by pinching the end of the broad point in the mountains. We go up little by little until we encounter the valley fold which makes the sharp point three-dimensional. By performing this movement, the sharp point gradually closes on the top of the broad point. In the end, we obtain a two-dimensional shape with a sharp triangular-shaped point which surrounds the base of a wider point whose visible part resembles a kite. 21. Arrange the elementary module so that the thick triangular tip is on the left, the wide tip is to the right. This is the elementary module. You have to fold 8. Assembly You must have eight elementary modules. Each of them includes: - on the left, a fairly sharp but thick triangular point, marked on the left by a hinge fold, - on the right a wider point, composed of two flaps linked on the left by a hinge edge which is caught in the acute point. From the upper summit of the broad point a mountain fold begins which will join the lower right summit of the thin triangular point. 1. Take module no. 1, place it with the sharp point on the left. 2. Insert the sharp tip of module no. 2 inside the broad tip of module no. 1, aligning the two upper vertices and locking the left hinge fold of module no. 2 to the bottom of the broad tip of module no. 1. 3. Entrap the front side of the sharp tip of module no. 2 by folding, from left to right, inside module no. 1, the triangular part of the front flap of the broad tip of module no. 1. We use the mountain fold that descends from the upper peak of the broad tip of module 1. 4. Flip the fold from left to right. 5. Entrap the front side of the sharp tip of module no. 2 by folding, from right to left, inside module no. 1, the triangular part of the front flap of the broad tip of module no. 1. We use the mountain fold that descends from the upper peak of the broad tip of module no. 1. The two modules are now united. 6. Flip the fold from right to left. Module 1 now appears as two thick, sharp points. We can only see the broad tip of module no. 2. 7. Insert the sharp tip of module No. 3 inside the broad tip of module No. 2, aligning the two upper vertices and locking the left hinge fold of module No. 3 to the bottom of the broad tip of module no. 2. 8. Entrap the front side of the sharp tip of module No. 3 by folding, from left to right, inside module no. 2, the triangular part of the front flap of the broad tip of module no. 2. We use the mountain fold that descends from the upper peak of the broad tip of module no. 2. 9. Flip the fold from left to right. 10. Entrap the front side of the sharp tip of module No. 3 by folding, from right to left, inside module No. 2, the triangular part of the front flap of the broad tip of module No. 2. We use the mountain fold that descends from the upper peak of the broad tip of module No. 2. 11. Start again from step 7 to step 10 for the other 6 modules. When module no. 8 is in place, the loop is not closed. You still need to connect module no. 8 to module no. 1. 12. Insert the sharp tip of module no. 1 inside the broad tip of module no. 8, making the two upper vertices coincide and locking the left hinge fold of module no. 1 at the bottom of the broad tip of module no. 8. 13. Enclose the front side of the sharp tip of module no. 1 by folding, from left to right, inside module no. 1, the triangular part of the front flap of the broad tip of module no. 8. We use the mountain fold that descends from the upper peak of the broad point of module no. 8. Roulette is now complete. If you lay it flat and blow on it, it starts to spin. We can also pass an axis through the middle, and it will be a very complex windmill. |
| Contents | File |
| Roulette - PDF file | ML-Decoration10Ang.pdf |