DIN A: Dipyramid-to-Parallelepiped (and Beyond)!

Introduction: DIN A: Dipyramid-to-Parallelepiped (and Beyond)!

Using our standard fold pattern, one knife cut, and two pieces of tape, we can bring a single sheet of DIN A paper to life!

Supplies

One sheet of DIN A paper, a straightedge and cutter, and two pieces of tape, are all that's needed. For a sturdier, more durable model, a heavy weight paper like the A5 used here which weighs in at 160 GSM, is recommended.

Step 1: Fold

The fold pattern requires a total of 12 creases. I like to start with three folds which divide the sheet in 4 equal parts along the long length of the sheet. Then I make the three folds that do the same along the short length. Next, I make the two diagonal folds, corner to corner. And last, I do the four diagonals, from center of side to center of adjacent side. See photos.

Step 2: Cut and Tape

To allow for our desired freedom of movement, a cut to the sheet must be made, and then tape is applied in such a way as to allow for the same degree of movement. See photos.

Step 3: Make It Move

Figures to be found include:

The Dipyramid, the Parallelepiped, as well as several transitional forms, let's call them hybrids of these two. See video.

Step 4: Bonus Video

Same concept applied to A4 sized sheets of refrigerator magnets.

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    4 Comments

    0
    craftyv
    craftyv

    Question 6 weeks ago on Introduction

    What is A DIN paper? What does A5 paper measure? I've never used it. Thank You very interesting.

    0
    Studio 20bis
    Studio 20bis

    Answer 6 weeks ago

    Thanks very much for your interest. This link will provide an extensive overview of DIN A paper sizes and much more. A5 itself measures 148 mm x 210 mm, and like all A and B series papers, it approximates the 1:√2 proportions required for these models.
    Also, my previous Instructables, in particular https://www.instructables.com/Dipyramids-UnMasked/ talks at length about the 1:√2 geometry.

    0
    craftyv
    craftyv

    Reply 6 weeks ago

    Wow: I've checked them out and it's quite mind boggling for me. I never heard of it and I don't know anybody else who's heard of it either. Will be quite useful. Thank You.

    0
    Studio 20bis
    Studio 20bis

    Answer 6 weeks ago

    I guess the link attachment was not allowed. See more of my early work here for additional information on DIN A paper.