I've been sewing for over 40 years, and IMHO, the way a bobbin is wound is more important than what winds it. It needs to be wound smoothly, evenly, and with consistent tension. Otherwise, you can come up with all kinds of problems. If you have a sewing machine that does that, use it and don't waste your money. I've always used the machine I was sewing on. If your sewing machine doesn't wind properly, you can either get it fixed, or buy one of those little bobbin winders. Your choice. But my point is: no way is a normal sewing machine NOT able to wind bobbins properly if running properly.