This is probably an old tip for all you veteran sewers but use a pipe cleaner to clean your machine. It will get into areas on your machine you didn't know was there. Better than a can of air.

will have to try that - thanks.

and the lint sticks to them

sounds like a really good idea. From what I've been told the canned air is a no no - it pushes the lint etc into areas you can't reach to clean and therefore it'll spend more time in the shop.....