How should I place my spool on my machine?
To answer this one, let’s have a look at Aurifil spools.
Aurifil thread is cross wound — whether on a small spool, large spool, or a cone.
For best sewing and embroidery results, we recommend that the thread be pulled from the top of the spool.
With that in mind, the best way to use a cross wound thread is with a horizontal spool holder. To remove added complications, it’s best to place the spool between a sponge base and a spool cap. Machines typically come with caps in two or three different sizes.
The spool cap should not be larger than the diameter of the spool itself, otherwise it may lead to the thread getting tangled, to upper thread tension fluctuation due to added friction, or to thread breakage. Since the small and large Aurifil spools have such a small diameter, we recommend the smallest spool cap size (some are a button spool cap that will fit right into the tip of the large spool itself!) It causes no interference whatsoever with the thread coming off the spool.