From our Free Quilt Block Patterns Library
Skill Level: Confident Beginner
The beginner friendly New Mexico quilt block is truly a cinch to make!
Easy connector corners. Quick pieced half square triangles. A little basic strip piecing.
The pattern is offered in three sizes: 7-1/2", 15" and 30" finished.
At 15", the New Mexico quilt block makes for a cute table topper. Stitch a giant 30" block to whip up a darling baby quilt. Add a border or two to customize the size and you've got a terrific gift!
It's time to get busy!
A 1/4" seam allowance (SA) is used throughout our New Mexico quilt block. Keep your eyes peeled on the specialty presser feet that are used for the different units—a standard 1/4", and open toe applique, and a 1/4" with a guide.
Must you have them?
Yet, they do make the job easier...and I'm all for making quilting easier! ;)
When pressing your SA, press first with the unit closed to set the seam and then open with the SA is the direction as indicated.
While larger prints will work for the 15" and 30" blocks, at 7-1/2" finished you'll want to choose fabrics with small scale designs or ones that are tone-on-tone or solids.
The SAs are nested throughout to make matching your seams a breeze. Just follow the pressing directions.
I prefer to cut the patches for the half square triangles bigger than listed in the chart below and trim those units to the perfect size after stitching.
Cutting Chart for a~ Traditional Piecing ~
|Patch||Fabric||Qty||Finished Block Size|
|1||BAC||1||2” x 2”||3-1/2” x 3-1/2”||6-1/2” x 6-1/2”|
|2||BAC||4||2” x 5”||3-1/2” x 9-1/2”||6-1/2” x 18-1/2”|
|3||A||8||2” x 2”||3-1/2” x 3-1/2”||6-1/2” x 6-1/2”|
|4**||BAC||2||2-3/8” x 2-3/8”||3-7/8” x 3-7/8”||6-7/8” x 6-7/8”|
|5**||A||2||2-3/8” x 2-3/8”||3-7/8” x 3-7/8”||6-7/8” x 6-7/8”|
|6||A||2||1” x 13”||1-1/2” x 21”||2-1/2” x 37”|
|7||BAC||1||1” x 13”||1-1/2” x 21”||2-1/2” x 37”|
|8||BAC||2||1” x 9”||1-1/2” x 13”||2-1/2” x 21”|
|9||A||1||1” x 9”||1-1/2” x 13”||2-1/2” x 21”|
|Unfinished Block Size||8”||15-1/2”||30-1/2”|
|Trim HSTs to...||2” x 2”||3-1/2” x 3-1/2”||6-1/2” x 6-1/2”|
**I added an extra 1/4” to these squares and then cut them, i.e. for the sample 15" block the 3-7/8”x3-7/8” squares were cut at 4-1/8”x4-1/8”. After stitching, the HSTs are trimmed to 3-1/2"x3-1/2", the measurement in the 'Trim HSTs to...' row.
Half Square Triangles (HST)
Draw a diagonal line on the back of the two #4.
With a standard 1/4" foot installed on your machine and right sides together (RST), stitch a 1/4" away from both sides of it.
You can see that I wasn't too picky about the size of the dark #5 square.
I'd planned to cut these squares 1/4" larger than listed in the cutting chart—I prefer to cut them to size after stitching.
I must have had a brain-fart (heavy sigh). The darker
squares are even bigger than planned.
That happens sometimes!
Since the HSTs are trimmed to size anyway, there was no reason to re-cut the squares...might as well save a step.
After stitching and trimming (see the chart for the 'Trim HSTs to...' row, they are the perfect for piecing!
Connector Corner Units (CC)
The Connector Corners technique (CC) makes piecing the sides easy as pie!
No funky shapes to cut. No bizarre measurements to worry about. Just a bit of extra fabric.
For this technique we sew on the drawn line. I've switched to an open toe applique foot so it's easier to see it.
Mark the diagonal on the back of each of the eight #3 squares...just dark enough to see. I prefer a mechanical pencil because the line stays nice and fine. If you use an ink pen, double check that it doesn't bleed through to the front. If it does, it can noticeably darken the seam line. Not good.
With RST, align a marked #3 with a #2 rectangle . Sew on the line.
Add another marked square, RST, to the other end of the #2 . Both squares are positioned so that the marking goes from the lower corner to the upper center. Stitch on the line.
Now you have a choice to make.
You can add another line of stitching a 1/2" past the first stitching and closest to the corner to create a bonus HST from each corner as shown below. (The 7-1/2" finished New Mexico quilt block is too small to make a salvageable HST.)
Or you can simply trim the seam allowance to 1/4" from the sewing as shown in the photo below, bottom unit.
After you've stitched, press the units flat to set the seam and then open the patch, pressing from the front, SA toward the outside corner.
Repeat for the three remaining sides.
Make 1 of each
These are used for both the Rail Fence and the nine patches.
Sew the #6/#7 strips together and the #8/#9 strips together, alternating lights and darks to make two stripsets (show below).
I prefer to sew a pair of strips together and press with the SA to the dark. Then add the final strip. It's simply easier for me to give each SA a good press without tucks.
Square up one short edge of each strip set by aligning a line on your ruler with one of the seams.
The strip sets are longer than you'll need, remove only as much as you need to straightened the ends.
Refer to the chart below to find the subcuts to make for your finished block size. The first number refers to the width of the cut, the second to the width of the strip set.
After cutting you have this...
Set aside the four Rail Fence squares (left above).
For this unit and the rest of the New Mexico quilt block construction, I use a 1/4" foot with a guide.
Arrange the patches for the nine patches, the outside corners are the lighter fabric (below, left).
With RST, sew a #8/#9/#8 to a #6/#7/#6 (above, center). Press, SA towards the unit with the two darker patches.
With RST, stitch the final #8/#9/#8 to the opposite side. Again, pressing towards the center (above, right).
Repeat for the three remaining groups of patches.
Though this is a 5x5 grid block, it's much easier to assemble it as an uneven nine patch, but first we'll need to construct the large center unit.
Lay out the nine patches and Rail Fence and solid center squares to form the New Mexico design.
Stitch the units in each row together. Use pins if it helps you match the seams. Since all the SAs are pressed to the dark, they nest together.
All the SAs are pressed towards the Rail Fence units.
Stitch the rows together and give it one more press.
Lay out this center combo-unit and the remaining patches into rows.
With RST, stitch the units in each row together, pinning if needed to help you match the seams. The seams of the side CCs and the corner HSTs nest together (top and bottom rows).
Press the SA toward the CC units.
Voila! Your New Mexico quilt block is finished!
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