Yes that is dust inside my sewing machine. I'm not surprised my sewing machine hates me! That is serious neglect. No wonder it never feels like it is running smoothly. It could barely breathe under the weight of that dust let alone sew gracefully. I used the little brush thing you get with your sewing machine and this came out
Oh dear! I think the problem is that I make lots of bibs which are backed with towelling fabric and bits come off the towelling fabric all the time and clearly clog up the sewing machine. So my sewing machine is all ready to go now - we wait to see if I am forgiven and we are now friends.
Who else is up for cleaning their machines and showing the evidence??