Monday, October 17, 2011

Questions and Tips

Asked and Answered

Should fabric be pre-washed?
No, that might distort stripes

May fabric be starched?
Yes, once it's been fused and sewn.

Make sure the interfacing is fused diagonally from lower left-to-upper right. If not, try to lift it off, reposition and refuse. It's a common goof.

Why fuse diagonally from lower left-to-upper right?
To create blocks that appear to rotate counterclockwise:
                        Counterclockwise                                    Clockwise                               
What happens if the Interfacing is fused diagonally from upper left to lower right?
The blocks will appear to rotate clockwise

Counterclockwise and clockwise blocks
The diagonal position of the interfacing determines whether a block appears counterclockwise or clockwise. When fusing a pair of fabric squares, whichever diagonal you prefer, fuse both squares consistently.

Why cut 8½" squares of fabric?
To not waste ¼ yard cuts, whether fat quarter or long quarters or half  yards.

Because of size appropriate rulers. Omnigrid manufactures 8½" square and 8½ x 24" rulers which I use to cut pairs of fabric squares as well as a 10½ square that I use to true up the unfinished blocks.

Because I like blocks that finish at 10" square.

Incidentally, for the same above reasons, I use identical 8½" squares of stripe fabric to make my Xcentric blocks
My Red Xcentric Sampler Quilt is the frontispiece of Rotary Cutting Revolution
Does it really take two  8½" squares of fabric to make one 10½" Anita's Unbiased quilt block?
Yes. According to my PiGuy
  • Two 8½" squares, a total of 144½ square inches of fabric, result in an unfinished 10½" square block of 110¼ sq. inches of fabric. The two seam lines account for losing 34¼ sq. inches, 23.7% of the original amount. PiGuy reasoned "Now, if you just did this process in reverse, you would never get to buy fabric again..."