A close up of my drawing of Ernest B. Haights innovative HST grid design technique to create perfectly constructed HSTs rapidly. remember to 'jump' the intersecting corners along the 'tram lines' not extended through the blocks. The man was a Genius!
Ernest B. Haight's (My Hero) grid for HST's produces a "Dynamic Dozen" of perfect HSTs. We worked on a rectangle of 10" X 15" (6x5" Grids) with only 8 x seams. Diagonal corner to corner (C2C) cutting lines are drawn and 1/4" seam lines are added on each side. 2 of the C2C lines cut across 4 x grids and the remaining 2 x C2C lines cut across the remaining end singular grids. After sewing the outer "tram lines" aka seam lines the grid is dissected along the cutting lines and Voila!!!
Magic 8 HSTs Technique - 2 x 10" fabric squares. Draw 2 x Corner to Corner (C2C) diagonal (cutting lines) with 1/4" seam (tram) lines on each side. Now draw 1 x straight cutting line that intersects the square from side to side and another 1 x straight cutting line that intersects from top to bottom thus creating a 4x5" Grid. NB - DISSECT THE FABRIC SQUARES ONLY AFTER SEWING to yield your magic 8 x HSTs.