My Brother CS7000x makes a weird grinding sort of sound whenever

What makes all the crazy raddling noises in the older electronic cash registers as seen in the linked video? : r/vintagetech

Making bobbins on brother cs7000x- hi! I'm having a hard time making bobbins on my machine. They turn out like this and also don't have much thread on them. Any tips are appreciated! : r/quilting

Why is my Brother machine making a noise when printing? - Brother Canada

2010 E350 with a very strange noise, it sounds like a helicopter, but it's quiet and hard to hear. Noise most pronounced at 15 seconds in. Has anyone seen this before? : r/mercedes_benz

Why is my Brother machine making a noise when printing? - Brother Canada

Why is my machine making a grinding noise? - Brother Canada

How to fix a grinding noise on a Brother sewing machine - Quora

Why is my machine making a grinding noise? - Brother Canada

Bernette 79

How to fix a grinding noise on a Brother sewing machine - Quora

Why does my machine make a grinding noise? - Brother Canada