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Aveuglami project - folding sheet

Envelope

Author van der Ploeg Elsje
Category furniture
Difficulty **
Format A4
Base -
Text An envelope may contain a small note which will be discovered when opened. Surprise !

1. Take a rectangular sheet of paper (eg A4), placed horizontally. If it is two-tone, place the color on top.

2. Create a valley fold by bringing the left edge over the right edge.
We obtain a vertical rectangular shape composed of two simple flaps linked by a left vertical hinge fold.

3. Bring, using a movement from right to left, using a valley fold, the upper edge of the upper flap onto the hinge fold, making a 45° fold. The upper right vertex of the flap is as low as possible on the hinge fold. Mark the fold well.

4. Flip the folding from right to left. The hinge fold is on the right.

5. Bring with a movement from left to right, using a valley fold, the upper edge of the upper flap on the hinge fold, making a 45° fold. The upper left vertex of the flap is as low as possible on the hinge fold. Mark the fold well.
We obtain a trapezoidal shape, with a sharp point upwards. We find the vertical hinge fold on the right, and two other hinge folds starting from the top of the point at 45°, linking two triangular flaps to the rest of the fold.

6. Use the thumb of your left hand to locate the lower right corner of the upper triangular flap. This corner is on the vertical hinge fold.

7. Without leaving this mark, bring the upper point to the vertical hinge fold a little below the mark in step 7.
For A4 paper, go down approximately 1cm below the mark. We obtain a 5-sided shape, consisting (starting from the tip and going towards the left) of a small horizontal upper side, followed by a 45° side, then a small vertical side, then 'a large horizontal side and the return is via a large vertical side. The 45° and vertical left edges delimit two flaps which are blocked on the upper left vertex.

8. Place the index finger of the right hand on the upper left vertex of the shape. This finger will facilitate the pivoting of the next fold.

9. Use the index finger of your left hand to locate the 45° side that goes from the tip to the right.
This is one side of the point that we folded in step 7.

10. Create a valley fold by bringing the 45° side going to the left of the upper flap along the 45° side that you have just identified.
One way of doing this is to bring with the left hand, without releasing the pressure of the right index finger, the left top of the flap being pivoted as low as possible on the side that we have identified (we cannot reach not up to the hinge fold, there remains a gap of the size of the point overhang created in step 8). Block this vertex with the thumb of the right hand (we make a gap between the thumb and the index finger). A vertical fold appears, which starts from the vertex identified by the index finger. Gently flatten this fold, then mark it well.
If the fold is done correctly, the lower left vertex of the folded flap is now exactly on the lower edge of the original figure.


11. Unfold the tip, then fold it back, changing the initial fold into a mountain fold. Flip the fold from right to left.

12. Locate the upper right vertex with your left index finger. Bring the 45° edge of the top flap along the 45° side of the tip, using the same technique as in step 10.
We now have a rectangular shape.

13. Unfold the tip upwards.

14. Lift the folding, then open it by bringing the lower flap flat, using a movement from right to left. 15. Create a valley fold by bringing the top tip down. We use an existing fold. The two 45° sides of the tip are found along the 45° sides of the two flaps created in step 10 and step 11.
We obtain a horizontal rectangular shape.

16. Locate the tip with the index finger of the right hand, lower it a few millimeters and bend the lower flap strongly along the index finger, for example by pressing with the thumb to clearly mark the location.

17. Raise the bottom of the fold using a valley fold, pivoting. around the point that we have just identified. When the edge is almost flat, block by placing the thumb of your left hand on the point determined in the previous step.
The shape is three-dimensional. The bottom of the fold is made up of a horizontal rectangular flap, hiding two rectangular flaps placed on either side of the median. We will link the whole thing to the rest of the shape by a horizontal hinge fold.

18. Bring the upper right corner of the flap to be folded over the right edge of the rectangular shape, watching the inner flaps to ensure they stay in place. Gently flatten the horizontal crease being formed, starting from your thumb and moving to the right.

19. Without releasing pressure on the midpoint, bring the upper left vertex of the flap being folded to the left edge of the rectangular shape. Gently flatten the bottom horizontal fold being formed.

20. Strongly mark the final horizontal fold.
The flap that has just been folded covers, among other things, a triangular flap.

21. Unfold the tip of the triangular flap upwards, bring it vertically.

22. The lower rectangular flap tends to open, forming a sort of pocket made up at the front of a rectangular flap linked at the bottom to the rest of the shape and, to the right and left, of two rectangular flaps going almost up to the median.

23. Folding it downwards, slip the tip into the pocket.
The triangular flap is stuck between the front rectangular flap and the two rear rectangular flaps.

24. Slightly lift the upper left tip of the horizontal rectangular flap with your left hand.

25. Place the index finger of the right hand on the left vertex of the rectangular shape. Locate the 45° junction between two interior flaps, and follow it gently, going downwards, until you meet the rectangular flap. Then block, with your index finger, the point of intersection between the upper horizontal edge and the 45° junction, by placing your finger on the rectangular flap.

26. Bring the upper left vertex of the rectangular flap onto the shape using a valley fold determined by the lower left vertex of the initial rectangular shape and the junction bridge marked by the index finger. Mark the fold well.
We thus obtained a triangular flap, whose fold angle is not usual.

27. Repeat steps 24 to steps 26 by applying them to the upper right corner of the flap you are working on.
We have a second triangular flap, symmetrical to that of step 26.

28. Release the tip of the pocket, bring it vertically.

29. Pass the two triangular flaps back and forth, transforming the valley folds into mountain folds.
Put what you want inside, then close the envelope by sliding the tip into the pocket which is now better closed thanks to the last two triangles.

1 file to download
Contents File
Envelope - PDF file ML-Furniture04Ang.pdf
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