Best Blogger Tips
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Jan 2, 2013

The Infamous HST: Half-Square Triangle Tutorial

Jan 2, 2013
Pin It HST Tutorial Cover e

There are a few basics I thought I would write into tutorials for the Sisters' Ten Block of the Month Club.  This way I can let you know my method, and refer to the tutorial, instead of having to give the same directions over and over again.  Today we start off with Half-Square Triangles.

HST 1 tutorial

Cut 2 squares the same size.  One from Fabric A and one from Fabric B.
Draw a diagonal line on the wrong side of the Fabric A square.

HST 1.  draw diagonal e 

Layer the Fabric A square atop the Fabric B square with right sides together.  Sew pairs together, stitching 1/4" on each side of the drawn line.

HST 2.  sew on either side of diagonal e

Cut the pair apart along the drawn line to make two half-square triangle (HST) units. 

HST 3. Cut on drawn line e

Press open the half-square triangle blocks, pressing seams toward the dark fabric, Fabric B.

HST 4. Open, press seams to dark e

To square up the blocks, I like to mark off the unfinished size I am going to trim the HSTs down to.  I lay post-its on the ruler so I can see the unfinished size without getting confused.  (In this example, I have gridded off a 2 7/8" x 2 7/8" square.

HST 5. mark required unfinished size e

Lay the diagonal of the ruler on top of the diagonal of the HST.  Make sure to center the marked-off section of the ruler over the block so there is a small amount of fabric to trim on all sides.

HST 6. Lay fabric diagonal along ruler grid diagonal e

Use your rotary cutter to trim the excess on all sides.

HST 7.  Trim away excess e

All finished!

HST 8.  Finish e Pin It

8 comments:

  1. This is the method I have used for several years and I love that you always end up with the perfect size HST. I cut my original squares 1 inch larger than my intended HST size so I have ample extra to true up the HST with.

    ReplyDelete
  2. Oh, what a great idea about the post-its on the ruler! I'm totally doing that next time! Happy 2013, AM. : )

    ReplyDelete
  3. AM!! Thank you for posting the tip about using the Post-Its. Why did I not think of this?! I probably check and double and triple check every time I square up because I get myself all confused and don't want to cut wrong. Will definitely be using this tip!

    ReplyDelete
  4. Instead of post its. I use blue painter's tape.

    ReplyDelete
  5. Love my blue painters tape! I use it all the time.

    ReplyDelete
  6. This is a great tutorial!! I am reviewing before I get home and start on the February BOM!! So excited!!

    ReplyDelete

Related Posts with Thumbnails