Makingthe Half-square
triangles
4
Placea 6inprintedfabricsquare
anda 6inbackground fabric
square RST.
5
Drawa linecornertocorner
alongbothdiagonalsandsew
infromthemarkedlinesorasI
liketo– usea inseamrulerand
placeexactlyinthecornersalongthe
diagonal,marka lineoneithersideof
therulerandrepeatfortheopposite
diagonalthensew on the marked
lines(Fig1).
6
Cutyoursquarealongthevertical
andhorizontalhalfwaylines,and
throughthe centres of the diagonals
(Fig2).
7
Youshouldnowhaveeight(8)HST
units. Press seams open(Fig3).
8
SquareupyourHSTunitsto
measure 2 insquare.Make
surethediagonalseamis exactly
45-degrees and bisects the corners.
9
Repeatsteps4-8tomakeseven-
hundred-and-sixty-eight(768)
HSTunitsintotal.Disregardthirty-
six (36) HST units – these could be
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PROJECT l starburst
Fig 2 Fig 3