I thought I would be smart and make up some squares to practice my free motion on. That part was okay. I continually kept breaking the thread and had to keep re-threading the needle - I tried everything. the machine did fine with regular foot and sewing, just when I dropped the feed dogs and started free motion I ran into trouble. I changed the needle, cleaned the bobbin case, re- threaded needle (only about a 100 times) fiddled with the tension, up and down. Changed thread, twice. Then finally put in bobbin thread for the top thread and so far so good. I don't know what in the world caused this, nor what else could of been done. Anyone have any comment? or input of what I was doing wrong.