I sit on a fairly high stool, with foot pedal on floor my legs get sore. One day while in Lowes I found a couple of folding stools, bought 2 of them. One to rest my left foot on and the other to attach foot pedal to. I am now more comfortable. See attached photos. Stools are 8 1/2" high, 8 1/2"deep, 12" wide.
Jerry