Originally Posted by
miriam
I had an industrial machine with a drop in bobbin. Speed was not a problem with thread bending. I kind of think that drop in bobbin not fast theory has holes somewhere.
I’m with you on that. I don’t think that the drop-in bobbin is a reason to use slow speed.
My Singer 111W153 (I call it “Ol Dirty”) has a drop-in bobbin and is in an industrial power stand that is driven by a 3470 RPM clutch motor. Now, the machine itself is not supposed to run faster than 2900 RPM, so I don’t ever floor it when I sew with it, but I have ran some very fast stitch lines with it (think: thirty-foot long swimming pool cover seams), and I don’t think that I’ve ever seen a domestic machine that can run as fast as Ol Dirty does, and Ol Dirty doesn’t miss a stitch....
I wonder if the general public, that uses home sewing machines, knows how fast 2900 stitches per minute eats up fabric?
CD in Oklahoma