Your machine should already be fitted with the Handi Feet mount that works with the interchangeable Handi Feet. HQ longarm machines manufactured prior to Fall 2014, will need to convert from the original hopping foot to the Handi Feet mount using the Handi Feet Conversion Kit (QM00841).
Patent # US 10,612,173
D Jeanne Clark –
First time using my square feet. Picked the 1/4” one. I put a small size backing and batting on my HQ Simply Sixteen with Little Buddy accessory. Marked the horizontal and vertical centers of the batting/backing and rolled them to put the center in my quilting area. I then used the quilt-as-you-go method to piece the quilt. I used simple strips to add to the sides, top and bottom of a center piece. Worked very well. It was quickly made. I’ll have to practice on using other shape pieces like squares. All of the QAYG methods are similarly limited. Fun for small projects.