Innov-is F400 FAQs & Troubleshooting Innov-is F400 Not your product? Sort by Updated Date Popularity 5 Results 1. 27/05/2022 Tips for sewing thick fabrics 2. 23/05/2022 Tips for sewing leathers or vinyl fabrics. 3. 26/04/2022 How to adjust the thread tension 4. 13/04/2018 Tips for sewing thin fabrics 5. 25/07/2016 Combination of fabric, thread and needle More FAQs (English only) Sewing (Utility Stitches) FAQs & Troubleshooting