A CNC sewing machine, at its core, is a highly automated device that operates based on pre-programmed computer software instructions. It can perform a wide range of stitching patterns, from simple straight lines to complex embroidery, with an unparalleled level of consistency. In upholstery, this translates into a marked improvement in the quality and uniformity of finished products.
Handheld sewing machines are best suited for lightweight and medium-weight fabrics. They may struggle when it comes to sewing heavy materials like denim, leather, or multiple layers of fabric. If you plan to work with such materials regularly, you might need a heavy-duty sewing machine instead.