Step 23: Sewing While Filling New Bobbin
Then he KEEPS SEWING!
The bobbin winder spins while the machine sews and automatically shuts off when the bobbin is full.
I've sewed for decades including commercial sewing, and I never learned this trick.
I always loaded bobbins ahead of time, bought pre-loaded bobbins, or stopped and loaded them at the time. All those methods take unnecessary time. I want that time back!
btw that's the best sewing machine any of us have ever used, a "Unicorn" from Korea. It's incredible.