I purchased plans for a machine quilting frame (
http://www.buildaquiltingframe.com/) and my husband built it for me a year ago. My only regret is that we built it only 8 feet long, so I cannot do anything larger than about 90 inches wide. Initially, I used my Bernina Aurora 430 with the BSR on the frame, but the throat space was too small (or my quilts were too big). For my birthday last spring, I got the Janome 1600p and put it on the frame. The Janome has more throat space. I put a speed regulator on it so I don't have to use the foot pedal. I haven't put on a stitch regulator, and don't plan to. We put handlebars on the back of the sewing machine so I can use pantographs. Our next step, I think is to rig handlebars on the front so I can learn to do more free motion. It has been a terrific setup so far and I have learned bunches and bunches.