My old Viking D1 has that ability but hasn't worked in quite a while. Forgot to mention it when I took it in for service this last time and obviously he didn't check...............but then since I didn't tell him why would he? Anyway I use empty Neb bobbins when working with small repair jobs as I have only so many of the green bobbins. Plus I can wind them on my quilting bobbin winder as it won't work for the green bobbins. Love my old D1 though for piecing so will continue just the same and keep an eye on the bobbin when it gets low.