By lap quilting do you mean a large piece of material you are quilting or do you mean quilting large squares (20"or so) then sewing those together to make a larger quilt. I have quilted a queen size quilt by using a plastic frame and just hand quilting it. I have also been making a lap quilt by cutting all my pieces 20"(top material, batting, backing) then quilting those. I then sew those squares together on the machine. There is a certain way to sew them so that it comes out smooth. I'm sure there is a tutorial somewhere. I got a book from the library.