>>9985937If you're trying to use a pedal switch the machine to manual and provide minimal tension from one side with the hand that feeds it through, the material will distort more if the fibres are under too much or irregular pressure and you'll get that puckering/ripple. Give yourself a comfortable amount of tolerance too and trim excess back instead of trying to hamhand a 0.5mm join. Visible stitching or decoration is best done by hand afterwards and a lot of the best doll clothing is still a total heinous mess under the hood.