# Oricalculator Quilts

Tomoko Fuse has written the book Origami Quilts in which she creates quilts or patchwork patterns using folded shapes. Thanks to Dennis Walker you can now calculate the papersizes for these patterns very easily.
On his own website, Dennis has an Excel file that does these same calculations.

The book has two versions: an English and a Japanese. Here we use the English names with the page numbers of both version. Note: Dennis uses slightly different names.

Enter the size of the paper of the largest polygon in the field below, the sizes will be calculated automatically. When you start entering the calculations will be displayed.

The units of the sizes are equal to the number you enter, i.e. if you enter the size in inches, the calculated sizes are also in inches.

In the following, the sizes given are generally for the side of the square required to make that unit. However, in the cases where I have written 'Triangle', or 'Pentagon', the size given is the length of the side of the original Triangle or Pentagon that is used to create the unit. In the case of the Pentagons, the starting square to create the pentagon using the method given on page 23 (japanese version) or page 33 (english version) of the book is in brackets beside the pentagon value.

These 5 quilts use a connecting size called 'connector'. If the value of connector can be made to match (to within a millimetre or so), then the connections can be mixed and matched between quilts.

• Variations of drops
• Triangle with Slits and Crosses
• Pentagon with Slits and Trefoils
• Pentagon with Slits and Crosses
• Pentagon with Slits joined on Top

Have fun!

(Circle Quilt 1) English: 52, Japanese: 42
Paper Size

Dennis allowed for 4 Rings. Ms. Fuse only shows 3 in the photographs.

Diameter Ring 1:
Diameter Ring 2:

Ring Flower
(kite)
Jointing unit 2
(blintz square)
Jointing unit 1
(connector)
Ring 1
Ring 2 by
Ring 3 by
Ring 4 by
(Circle Quilt 2) English: 55, Japanese: 45
Paper Size

Dennis allowed for 8 Rings. Ms. Fuse only shows 5 in the photographs. Note: This quilt has not been tried yet, so it is not 100% sure that these work.

Diameter Ring 1:

Ring Triangle Jointing unit
(blintz square)
Ring 1
Ring 2
Ring 3
Ring 4
Ring 5
Ring 6
Ring 7
Ring 8
(Kite Quilt) English: 50, Japanese: 40
Paper Size
Model Size
Square
Petals
Small Kite
Large Kite
Connector
(Triangle/Square Quilt) English: 38, Japanese: 28
Paper Size
Model Size
Small Square
Triangle
Large Square
Connector
(Triangle/Pentagon Quilt) English: 60, Japanese: 50
Paper Size
Model Size
Large Triangle
Pentagon
(Square)
Small Triangle
Connector
(Square/Pentagon Quilt) English: 61, Japanese: 51
Paper Size
Model Size Model Size
Small Square "gap"
Pentagon Square
Large Square "gap"
Connector
(Pentagon/Diamond Quilt) English: 62, Japanese: 52
Paper Size
Model Size
Pentagon
(Square)
Diamond x
Connector
(Square Quilt 3 (Pinwheel)) English: 74, Japanese: 64
Paper Size
Model Size
Star (pinwheel)
Connector
(Pentagons Quilt) English: 58, Japanese: 48
Paper Size
Model Size Size
Pentagon 1 Square
Pentagon 2 Square
Pentagon 3 Square
Pentagon 4 Square
Connector

^
Name English Japanese
Crosses 16 6
Crosses + Squares 17 7
Double Crosses + Crosses 18 8
Double Crosses + Joints 20 10
Crosses + Joints 22 12
Square Windows 23 13
Four-Petaled Flowers + Crosses 26 16
Four-Petaled Flowers + Half-Crosses 28 18
Flower Crosses + Crosses, and others 30 20
Equilateral Triangle, Pentagon and Hexagon 32 22
Trefoils 34 24
Triangles with Slits 36 26
Trefoils + Triangles with Slits 37 27
Triangles with Slits + Crosses 38 28
Triangles with Slits + Trefoil Variations 39 29
Hexagons with Outside Pleats + Triangles with Slits 40 30
Hexagons with Inside Pleats + Triangles with Slits 42 32
Joining Triangles 1 44 34
Joining Triangles 2 46 36
Drops 48 38
Variations of Drops 50 40
Blooming Flowers 1 52 42
Blooming Flowers 2 55 45
Pentagons with Slits 58 48
Pentagons with Slits + Trefoils 60 50
Pentagons with Slits + Crosses 61 51
Pentagons with Slits joined on Top 62 52
Pentagons with Slits joined on Side 64 54
Windmills and Joints of 180° 65 55
Windmills and Joints of 135° and 120° 68 58
Stars 1 70 60
Stars 2 72 62
Stars 3 74 64
Stars 4 76 66
Hydrangea 1 82 72
Hydrangea 2 86 76