1:3 HRT digital ruler file for laser cutting

1:3 HRT Ruler – Digital File for Laser Cutting

Make trimming Half Rectangle Triangles (HRTs) easier and more accurate with this digital file for a custom acrylic ruler! Designed for HRTs with a 1:3 width-to-height ratio, this file includes engraving and cutting lines to create your own laser-cut ruler. Use it to speed up your workflow and get perfect results—especially helpful when sewing my Atlantic Herring quilt and other quilts with 1:3 ratio HRT blocks. 

🟦 IMPORTANT: This is a digital product – no physical item will be shipped. You will need to take the file to a laser cutting service to have your ruler produced at your own cost. Price is for the digital files only.

Choose from:

• Individual sizes: Buy only the size you need. Best for faster cutting with a rotating mat. 

• 1:3 HRT Multi-Size Ruler: All 5 sizes combined on one handy ruler. 

• Complete bundle: Includes each of the 5 individual sizes plus the Multi-Size Ruler.  Total value 250 NOK – save 68%! 

Included sizes (finished / unfinished):

• 1" x 3" (1½" x 3½")

• 1½" x 4½" (2" x 5")

• 2" x 6" (2½" x 6½")

• 2½" x 7½" (3" x 8")

• 3" x 9" (3½" x 9½")

✨ This ruler is made for trimming finished HRT units to the correct size. Whether you're making bold modern quilts or precision-pieced traditional designs, this tool helps keep your angles crisp and your blocks square.

What’s included for each size (in a zipped folder):

• 1 SVG file (mirrored)

• 1 EPS file (mirrored)

• 1 DXF file (mirrored)

• 1 PDF file (mirrored)

• 1 PNG file (for visual reference only – not for cutting)

• 1 PDF with trimming instructions and fabric cutting chart

Engraving tip:
The file is mirrored, as it’s meant to be engraved from the back side of clear acrylic. Engraving from the underside keeps the top smooth while creating just enough texture underneath to reduce slippage during use. When cut and engraved correctly, the lines will appear right-reading from the top.

🔴 RED lines = CUT
⚫ BLACK lines = ENGRAVE

Important Notice: This is a digital download only. No physical item will be shipped. The file is provided as-is, and I do not offer customization, modifications, or technical support for laser cutter settings, software compatibility, or material adjustments. Please ensure compatibility with your machine and software before purchasing. All sales are final.