I love this checker background design. It's actually a pretty simple design to machine quilt so I thought you'd probably enjoy a fun little video tutorial.
You can purchase a 4-N-1 machine quilting ruler here.
My machine quilting is done on a Gammill 22" Long-Arm Quilting Machine.
For more nachine quilting tips and tricks check out my books; Beginner's Guide to Free-Motion Quilting, Next Steps in Machine Quilting and Visual Guide to Free-Motion Quilting Feathers.
I'm a Craftsy instructor, check out my class; Free-Motion Motifs for Classic Blocks.