--- title: "Ten-Speed Mystery Quilt Clue Six" date: 2025-02-09 author: "Phoebe Moon" featured_image: "https://scrapdash.com/wp-content/uploads/2025/02/Ten-Speed-Add-Borders.jpg" categories: - name: "Quilt Mysteries" url: "/category/mysteries.md" --- # Ten-Speed Mystery Quilt Clue Six ## No More HSTs! Now they are QSTs! 3 Part QSTs, that is. ### Assemble: - (80) 4-1/2″ × 4-1/2″ Background Squares - (80) 4-1/2″ × 4-1/2″ HSTs that you just made Draw a diagonal line on the back of the (80) 4-1/2″ Background squares. Match your HST with this square, right sides together, so the diagonal line goes through the seam of the HST. Sew 1/4″ on either side of the line. Cut on the line. ![QST Construction](https://scrapdash.com/wp-content/uploads/2025/02/QST-1.jpg) ![Intro to Scrapdash: The new software for managing and tracking waste recycling processes.](https://scrapdash.com/wp-content/uploads/2025/02/QST-w-right-seam.jpg) You should now have (160) 3-Part QSTS, one with a diagonal that goes to the right and one with a diagonal that goes to the left. Press to the large triangle and [square up to 3-1/2″ × 3-1/2″.](https://amzn.to/42KAKF0) ![Scrapdash logo on white background, digital scrap metal recycling platform, eco-friendly scrap management, innovative recycling solutions.](https://scrapdash.com/wp-content/uploads/2025/02/QST-w-left-seam.jpg) ![QST-two-different-diagonals](https://scrapdash.com/wp-content/uploads/2025/02/QST-two-different-diagonals.jpg) ![TS-PJ-Trim](https://scrapdash.com/wp-content/uploads/2025/02/TS-PJ-Trim.jpg) PJ sent a picture of her using the the Perfect Half Square Ruler to square up her HSTs. I really like this ruler myself, especially for QSTs, but I don’t think it’s sold any more. If you find one in a guild sale, grab it. It’s really quite useful. Otherwise, I suggest investing in [Fussy Cut rulers](https://amzn.to/3W1gWJo). That center X lets me center the ruler on the block. The marked seam allowances help me make sure that the points won’t be cut off. ![TS-MaryAnn-Tucker-TrimmerI](https://scrapdash.com/wp-content/uploads/2025/02/TS-MaryAnn-Tucker-TrimmerI-1-763x800.jpg) Oh, but wait! MaryAnn sent a picture of herself using the [Tucker Trimmer I](https://shareasale.com/r.cfm?b=929603&u=1512603&m=68500&urllink=https%3A%2F%2Fwww%2Efatquartershop%2Ecom%2Ftucker%2Dtrimmer%2Di%2Druler&afftrack=) to square up her QSTs. I had completely forgotten about this very useful ruler. Notice that you can use it to square up HSTs and QSTs. ## Mix them up! Put them in a bag and shake them! Take them out of the bag and sort them into two piles of (80) each. One pile will have diagonals that go to the left and the other pile will have diagonals that go to the right. You are only using one pile in this clue. Take all the blocks with matching diagonals and sew them into a pinwheel as shown. Don’t mix up the blocks with different diagonals or you might not get the pinwheel-in-a-square effect. Press and [square up to 6-1/2″ × 6-1/2″.](https://amzn.to/42KAKF0) ![4. A detailed geometric puzzle featuring a complex grid with diagonals, shaded triangles, and labeled instructions to "Make 20," designed for educational purposes in math puzzle solving.](https://scrapdash.com/wp-content/uploads/2025/02/Ten-Speed-Pinwheel-Effect.jpg) ![Colorful quilt block with various patterned fabrics, showcasing detailed patchwork and sewing techniques for quilting enthusiasts.](https://scrapdash.com/wp-content/uploads/2025/02/TS-centerblock-782x800.jpg) ![4. A detailed geometric puzzle featuring a complex grid with diagonals, shaded triangles, and labeled instructions to "Make 20," designed for educational purposes in math puzzle solving.](https://scrapdash.com/wp-content/uploads/2025/02/Ten-Speed-Pinwheel-Effect-274x300.jpg) ### Assemble: - (40) 3-1/2″ × 6-1/2″ Background Rectangles - (20) 6-1/2″ × 6-1/2″ Pinwheels that you just made Sew a 3-1/2″ × 6-1/2″ Background Rectangle to both sides of the Pinwheel. Make (20) and press to the Pinwheel. This unit should measure 6-1/2″ × 12-1/2″. ![Ten-Speed-Add-Borders](https://scrapdash.com/wp-content/uploads/2025/02/Ten-Speed-Add-Borders.jpg) ![Stacked fabric scrap pieces for quilt or textile project, showcasing varied patterns and textures, prepared on a green cutting mat for sewing or crafting.](https://scrapdash.com/wp-content/uploads/2025/02/TS-sides.jpg) ## Next Clue, Next Hour ### Clues - [Introduction](https://scrapdash.com/ten-speed-a-fast-fun-and-easy-super-sunday-mystery-quilt/) - [Clue One: Cutting Instructions](https://scrapdash.com/ten-speed-quilt-clue-one) - [Clue Two: Surprise! Let’s Make Some HSTs](https://scrapdash.com/ten-speed-mystery-quilt-clue-two/) - [Clue Three: More HSTs](https://scrapdash.com/ten-speed-mystery-quilt-clue-three/) - [Clue Four: Oh, no!](https://scrapdash.com/ten-speed-mystery-quilt-clue-four/) - [Clue Five: Beautiful Blocks](https://scrapdash.com/ten-speed-mystery-quilt-clue-five/) - [Clue Six: Making Blocks](https://scrapdash.com/ten-speed-mystery-quilt-clue-six/) - [Clue Seven: Making More Blocks](https://scrapdash.com/ten-speed-mystery-quilt-clue-seven/) - [Clue Eight: Making the Quilt Top](https://scrapdash.com/ten-speed-mystery-quilt-clue-eight/) - [Final Clue: Adding Borders](https://scrapdash.com/ten-speed-mystery-quilt-final-clue/) - [Picture Page](https://scrapdash.com/ten-speed-mystery-quilt-picture-page/)