Innov-is F420 FAQs & Troubleshooting Innov-is F420 Not your product? Sort by Updated Date Popularity 5 Results 1. 05/27/2022 Tips for sewing thick fabrics 2. 05/23/2022 Tips for sewing leathers or vinyl fabrics. 3. 04/26/2022 How to adjust the thread tension 4. 04/13/2018 Tips for sewing thin fabrics 5. 12/26/2016 Combination of fabric, thread and needle Sewing (Utility Stitches) FAQs & Troubleshooting