17.9 SQ Episosde 028 – Angles in Quilting: Part A Triangles

Podcast Feed

It’s All about Triangles & Quilting!

We pay homage to one of the cornerstones of quilting – the lowly triangle!

Three sides, three angles, three major descriptions of triangles.

1. Scalene triangle

• 3 different length sides
• 3 different sized angles
• typically used in setting triangles
• easier to paper piece
• no lines of symmetry – cannot accidentally flip the block over to fix a mistake
• can be a right triangle (one angle = 90 degrees)
• typical triangle found in math class 30, 60, 90
• can be called half rectangle triangles in quilting

Found in:

• tilted blocks (as setting triangles)
• wonky blocks
• mariner’s compass blocks
• palm blocks
• birds of paradise blocks

Eye searing pink blocks are just SOME examples of scalene triangles in these blocks.

2.  Isosceles traingle

• 2 equal length sides
• 2 equally sized angles
• most commonly found in quilting
• Half Square Triangle – HST
• Quarter Square Triangle – QST
• one line of symmetry, flip around the ‘odd’ angle
• can be a right triangle (HST, QST, flying geese)
• how you cut could have one bias edge (the hypotenuse) or two (the shorter legs)
• typical triangle found in math class 45, 45, 90
• triangle with an acute ‘odd angle’ – kaleidoscope block

Found in:

• pinwheel
• broken dishes
• flying geese
• ohio star
• hourglass
• square in a square
• friendship star
• spool
• maple leaf
• kalidescope …..

Look for the black triangle to see some of the isosceles triangles in these quilt blocks (there’s many many more)

3. Equalateral triangle

• 3 sides equal length
• 3 equally sized angles
• least commonly found in quilting
• 6 triangles can make a hexagon block
• all angles are 60 degrees –  no exceptions
• 3 angles of symmetry, flip around any angle
• guaranteed to have 2 sides of bias edges

Found in:

• thousand pyramid blocks
• chevron designs
• strip pieced hexagons
• tumbling blocks
• bordered thousand pyramid blocks

Hmm

Look at the yellow any block to see the equilateral triangle (assuming the image doesn’t get squished somewhere)

Triangle Math Websites:

• Cool Math Types of Triangles

• More Triangles in Quilting

•  Accuquilt Go 5 X 6 Isosceles Triangle Die

Home Sewing Front

Working on periodic spiral quilt – mostly basted, now need sewn together

Need an outline behind the spiral for it to stand out from the background

Exothermic quilt – see previous post about my place on this quilt as of a week ago.

Exothermic quilt on point:

Design decisions to make on the exothermic quilt:

• Borders are GOOD – do NOT fix them
• On point or not?
• If so, have to fix coping black/ grey inner border
• How much more black fabric to buy?
• Paralllelograms in the middle stay or go?  – it provides good movement, but too much of a distraction??

HAVE YOU SEEN:

• a 5 x 8 sized graph paper notebook for sale?  If so, what brand, where are you finding them, have you seen them online?
• I would love a notebook this sized to carry around more easily!

A MUST HAVE book for anyone wanting to hand / machine quilt with specific designs:

501 Quilting motifs: Designs for Hand or Machine Quilting from the editors of Quiltmaker Magazine

• Takes one motif and slightly changes it, multiplies it, rotates and flips it,
• gives dimensions on block size for motif found in book.
• looks easy to trace and adapt
• great resource
• hardbound
• spiral inside

If you want to Swap Charm (5 inch) squares, go to this swap on Swap – Bot:

I’m willing to join if there is a good & healthy number of people in the swap!

You have until Sept 2, 2011 to make your decision!

Music

From Mevio’s Music Alley

• Triangle Treasure by Aronus

• Honey Wine by Ukulele Jim

From Freesound.org

• By acclivity, Triangle1.wav

• By BristolStories, u_chimes_short1.mp3

• By rmukx, revealed.wav