Quick and easy way to add corner triangles to quilt blocks

I missed working on a patchwork quilt, but I wasn’t prepared for 144 blocks! Who makes a king size quilt with 8” blocks?  But I started it so I have to finish it.

Adding these squares to the corners of the block (to make triangle corner) is the only time-consuming step.

But there is a way to speed up the process, without drawing a diagonal line on each square or folding the square to make a crease.

You have to place a piece of tape on the bed of the sewing machine so that its left edge is in line with the needle.  It doesn’t matter the position of the needle. I keep mine in the center.

Here is a close-up.

Position the piece with the top corner of the small square in front of the needle and start stitching.
While stitching, guide the other (bottom) corner along the edge of the masking tape. Do not look at the needle. In this way you stitch exactly on the diagonal line without marking the diagonal.

I can’t say it is not boring to do it for 144 x 4 times!

Add corner triangles to quilt blocks

You might want to see:
Pictures of the quilt top
Pictures of the finished quilt

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11 Comments

  1. These types of quilts are called Snowball quilts when all 4 squares are straight, not sure what they're called when the squares are wonky–do you know? I'm working on a variation of the Snowball quilt right now, they must be a good winter project. Post pictures of the finished piece when you can, I'd love to see it!

  2. I drew a line on my machine for just this reason (it's forty years old, so I didn't feel bad about it) I'm getting a new machine soon, so now I may be back to tape. And FYI, I finished the Building Blocks top from your pattern–hope to be able to get it quilted in the next month or two–the pattern was really easy to follow. Only change I made was to reverse applique the circles on. The top is on my webpage if you want to see it. 🙂

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