Bellaboo's picture is right on the money. In addition I purchased a platform from Nancy's Notions that tilts my machine forward. You can do the same thing with doorstops under the back of it. I also rest my right foot on a plastic storage box that is the same height as my footpedal so that both legs are also level. I have chronic health problems that impact all of my muscles as well as ostoarthritis in my back. Sitting and working ergonimonically allows me to sew as much as I do.