Quilt block · Pinwheels · Intermediate

Double Aster quilt block

Four large triangles turn round a small square on point, with smaller triangles in three sizes filling in round them.

FamilyFour-patch
Grid8 × 8
Shapes6
Pieces37

What to cut for one block

A 12″ finished block measures 12½″ before it’s sewn into a quilt. Each fabric’s yardage is the least that cuts its strips across the width of fabric, with a strip to spare for straightening.

Background · Snow in the picture

20 triangles

  • E2 squares 5⅜″cut once on the diagonal
  • D3 squares 4¼″cut twice on the diagonals
  • C2 squares 2⅜″cut once on the diagonal
½ yd

Dark · Navy in the picture

4 large triangles

  • A1 square 7¼″cut twice on the diagonals
½ yd

Medium · Denim in the picture

4 triangles

  • B2 squares 3⅞″cut once on the diagonal
¼ yd

Light · Powder Blue in the picture

1 center square and 8 triangles

  • D1 square 4¼″cut twice on the diagonals
  • F1 square 3¾″then cut with template F
  • C2 squares 2⅜″cut once on the diagonal
½ yd

Templates. Pieces marked “cut with template” aren’t a shape a straight ruler cuts: cut the size given, then trim it to the template’s shape. Quarter Inch prints Double Aster’s templates at true size with Quilter.

Worked out by @quarterinch/cutting · ¼″ seams included · strips cut across 42″ of usable width · the letters are the pieces the sewing steps name

How it’s sewn

For the 12″ block. Choose another size above and these steps follow it.

  1. Sew the set-in seams

    These pieces meet where a straight seam can’t run right across, so they’re joined with set-in (Y) seams. Mark the ¼″ seam points at each piece’s corners. Sew each seam only from mark to mark, backstitching at both ends, so the seam allowances stay free; sew the two seams into the corner, then pivot and sew the last one. Press the allowances so they swirl round the point. The part measures 12½″ (12″ finished).

  2. Add 3 corner triangles

    Sew the Background E triangle across each corner in turn, along its long edge, and press toward the triangle.

  3. Add the last corner triangle

    Sew the Background E triangle across the last corner, along its long edge, and press toward the triangle. The block measures 12½″ (12″ finished).

Blocks like it

More like this: Pinwheel quilt blocks · Four-patch quilt blocks · all quilt blocks

Questions

Short answers.

Something else? A real person replies.

hello@quarterinch.app

What size should I make it?

Its 8 × 8 grid lands on the ⅛″ marks at 6″, 9″ and 12″, so every piece measures with a ruler at all three. It also cuts cleanly at 4″, 7″, 8″, 10″, 14″, 15″, 16″ and 18″. In Quarter Inch you can make it any size, and it says when a cut falls between the lines.

Can I paper piece it?

Not as drawn: it has set-in (Y) seams, where three seams meet and none runs straight through. Piece it with a rotary cutter and templates instead, as the cutting list above does.

Is it a good block for a beginner?

It’s an intermediate block: 37 pieces in 6 different shapes and 24 points to match. Take it slowly and pin the points. We work the level out from the block’s own geometry, never by eye.

Design with Double Aster, free

Open it in Quarter Inch at any size, in a layout of your own and in your own colors.

Start designing free