Miriam,
Mine moves, sews and with the cams makes the patterns. But when the cam follower gets to the high parts of the cam the machine bogs down as if something is binding. And there appears to be way to much pressure on the cam follower. When I've used it there is always white debris on the end of the follower from the cams.
I've not had the time to really work with it. Way to many things getting pushed up to the top of the "to do" list.
Joe