I found something I wanted to make, but I would need to end up with half inch finished squares. Soo decided to try a sample using some scraps of this.
It is a fusible patterned grid.
I cut these squares just under one inch and fused them onto the grid.
This is how it looks from the back.
Then fold on the grid lines and stitch.
After stitching, slice the fold off.
And press seams open.
Here is the back after sewing the cross seams and pressing and trimming.
Pretty accurate!
Looks like this will work.
Stay tuned for a future small project. Have a great day!
KatyQuilts 
I remember this grid when “Watercolor quilts” were a fad. Never saw instructions for cutting off the fold though, that really helps!
Wow! I have some of that grid. I’ll have to try your process. Thanks!
I’ve used a fusible grid many times. On the larger pieces, make sure the grid lines up when you fold it to keep the stitching straight.