book in progress by Irena Swanson

(Currently divided into four volumes)

Table of contents as of 14 February 2017:


Foundations of the tube piecing method 6
Outline of the tube piecing method and vocabulary 6
On strip cutting and on bias facts of life 7
Tip angle 7
Scooting offset 9
A note on precision in scooting and sewing 10
Finishing pre-tubes 10
Converting a pre-tube into a tube 11
On the pressing of tubes 12
Cutting the primary wide tube into primary narrow tubes 12
Optional clipping of seam allowances 13
On joining narrow tubes/strips 14
Seam shift 15
Edge shift 17
Mass marking of edge shifts on pieced tubes and pieced strips 18
Mass marking of edge shifts on non-pieced strips 19

Chapter 2: Further tricks 23
What to do with primary narrow tubes: some quick projects 23
Simplest cases of joining narrow tubes 24
Doubling the primary tube circumference (or tripling or ...) 25
The multi-tape method 27
Cutting wide tubes into narrow tubes, II 31

Sewing, pressing, measuring, cutting 33
On tubes and rows 33
Organization of pieces 34
Seam allowances, pinning, sewing 36
Measuring lengths 37
Angles 38
Chart for keeping track of projects 40
Pressing 41
Cuts and slits 43

Design elements for tube piecing 45
On formulas and adjusting them 45
Drawing your design, calculating 46
Do you need a calculator? 47
Circumference of primary tubes 47
How many primary narrow tubes in a primary wide tube 48
Number of batches of primary wide tubes 48
Fabric requirements 49
Relation between seam and edge shifts 49
A very brief trigonometry refresher 50

Traditional blocks with tube piecing potential 53

Index 56


Rectangles: tube piecing or not 11
Four-patch with enhanced strip piecing and with tube piecing 11
Nine-patch with enhanced strip piecing 20
Nine-patch with tube piecing 27
A possibility with nine-patch design with tube piecing 33
Rail fence and zigzag 35
Rail fence and zigzag, II 39
Courthouse steps 45
Bento boxes, or courthouse steps II 55
Log cabin 58
Log cabin in scrappy look 69
Log cabin look 78
Twenty-five-patch and double Irish chain blocks 83
Woven squares with strip piecing 89
Strip-pieced rows of squares in parallel squares 92
Argyle pattern with strip piecing 95

Index 100


Parallelogram projects 16
All-over diamonds in blue 16
Diamonds in pink and purple 18
A run through many examples, with many modifications 20
Zigzag 34
Hearts and flower buds 39
Tumbling blocks 42
Japanese puzzle 47

Room for vertices: parallelograms and triangles 54
Rows of half parallelograms, i.e., of triangles 56
Blue diamond border 56
Rows of parallelograms 59
Framed diamonds: all-over and in rows 62

Parallelogram designs with no vertex gobbling 69
Diamond in a rectangle block 69
Two by three diamonds in a parallelogram 78
Grandmother's pride: Three by three diamonds in a square 80
One by r diamond rows in slanted parallelograms 83
Two by five diamonds in a square 87
Two by four diamonds in a rectangle 91
Seamless double hourglass block 93
Seamless double hourglass block: different method 95
Seamless triple hourglass block 98

Further projects with parallelograms 100
Rows of four-patch blocks on point 100
Four-patch block on point in a square 102
Indiana puzzle, snail's trail 108
Milky way 110
Rows of squares in squares 113
Rows of squares in diamonds 119

Design elements for parallelograms 131
Slants of rows in an all-over parallelogram design 131
On cutting across secondary wide tubes, and slants 132
Final dimensions of a parallelogram quilt top 136
Choosing the cutting angle \theta across the (secondary) wide tube 136
Cutting angle with specified numbers of wraps 138
More on the trimming down of a parallelogram design 139
Parallelogram construction numbers 139
Symmetric parallelogram construction numbers 142
Parallelogram design with exceptional strip widths: outline 143
Exceptional addition for no vertex gobbling along two sides 146
Instructions for no vertex gobbling along two sides 148
Sewing instructions for no vertex gobbling 151
Exceptional strip width additions for no vertex gobbling 152
Exceptional edge shifts for no vertex gobbling 157
Parallelogram design with no vertex gobbling: drawing 157
Slits and cuts for parallelograms with no vertex gobbling 162
Parallelogram design: edge triangles of different colors 164
Parallelogram design: edge triangles of same color 167
Derivation of the second exceptional parallelogram addition E_2 170
Derivation of the third exceptional parallelogram addition E_3 172

Index 173


Triangles via tube piecing 19
Core steps in the construction of rows and of tubes of triangles 20

Projects with tubes of triangles 22
Construction of tubes of triangles 22
On using tubes of triangles 24
All-over triangles in orange and turquoise 27
Rows of brown triangles from fat quarters 31
Ralli triangles 33
Other color schemes and angle combinations 36
Thousand pyramids with different angles 38
Cupid's darts 43
Hexagons in sixths 48
Hexagons in halves, and something else 52
All-over triangles in diamond and zigzag shapes 56

Flying geese and stars 63
Flights of flying geese 63
Flying geese and stars 70
Flying geese and stars with any peak angle HERE not tested enough 77

Rows with even numbers of triangles 81
Construction of rows with an even number of triangles 81
Generalities about rows of half-square triangles 82
Half-square triangles in blocks 85
Half-square triangles in long rows 93
Half-square triangles: all-over design 98
Cut glass dish quilt 99
Lady of the lake 101
Maple leaf blocks 104
Bear's paw 109
Pinwheels (in halves) 112
Pinwheels in rows 114
Diagonal flight 122
Paired peaks 128
Blue triangle border 130
Ocean waves 132
Roman stripes 139
Rows of triangles 147

Rows with odd numbers of triangles HERE: not tested 154
North wind 154
Half-square triangles of four half-square triangles 156
Half-square triangles of nine half-square triangles 158
Half-square triangles of sixteen half-square triangles 161
Ocean waves, revisited 163
Ocean waves, a version with more triangles 165

More constructions with triangles 167
Hourglass block overview 167
Rows of hourglass blocks I 168
Hourglass blocks: alternate color scheme 175
Modification of the hourglass row construction 180
Rows of further-triangled hourglass blocks 181
Rows of hourglass blocks and rows of squares 187
Squares of three half-square triangles (or quarters of double pinwheels) 190
Double pinwheels (constructed in halves) 194
Hearts 199
LeMoyne stars with co-stars 202
Intertwined paired peaks 209
Rows of square web blocks on point 214
Multiplay 219
Kaleidoscope 226
Pieced pyramids, one by one 230
Rows of pieced pyramids, two types 235
Multiplay with rows of slanted pieced pyramids 242

Design elements for triangles 247
How one triangle is formed 247
Rows of triangles with different angles 249
Pressing for triangle design 249
On the two types of triangle constructions 250
Triangle construction numbers 251
Making more rows, more triangles per row 254
Making fewer but longer rows of triangles (multi-tape sewing) 254
Vocabulary for rows with odd numbers of triangles 256
Design for rows with odd numbers of triangles 258
Justification of angled flying geese formulas 261

Index 263

  Tube piecing

       Book: current table of contents

         by Irena Swanson