I didn't have to work in the field yesterday so stitched more of my 3" scrappy fabric squares together. Probably most of you have your own system but this is how I set up my machine to stitch them together. I don't have to mark any lines on the fabric using this method.
I put the 1/4" foot on my machine, lay a ruler or any straight edge under the foot with the right side even with the right side of the foot. Lower the presser foot to hold it in place then put a piece of tape along that edge. The tape needs to be as long as the squares you are sewing together. I use painters tape as it doesn't leave a residue when removed.
Start the fabric squares by placing one tip at the right edge of the presser foot and the opposite tip on the edge of the tape.
Start stitching, keeping the tip even with the tape. When you finish stitching that pair of squares continue sewing with no fabric under the presser foot for a few stitches then lay that next pair down in the same way and stitch.
After the entire batch of squares are stitched down one side, flip the squares and start stitching down the other side using the same method.
After both sides are stitched, cut them down the center between the two lines of stitching then press open and trim to size. Ta-Da, you're done!
My squares are 3" to start and the finished half square triangles are trimmed down to 2 1/2". There isn't a lot to trim but enough to make them perfect.
I have stitched 120 of these pairs together so far. I do have about 20 more to trim yet though. Think after these are trimmed I will start putting some of them in blocks.
Happy to be Stitching,