How do you wind and insert the bobbin? May 02, 2018 16:08 Updated Follow Here are the instructions on how to wind and insert a bobbin with your SP-3201! Comments 1 comment Sort by Date Votes Rachael B August 02, 2018 15:24 The SP-3201 takes class 15 bobbins. They are available for purchase on our website! 0 Permalink Please sign in to leave a comment.