Lead screws and mill dust

I'm posting this in serceral groups
Looking for ideas here.
What can I use to help keep lead screws free from mill shavings?
My table is 14" by 8". I'll be milling mostly circuit boards.
I bought 7 ½ in by 12 in bellows (rubber material, not was I expecting)
and been trying to figure out to make them work with no luck. They sag
to much.
I planned to use vacuum near the point of the bit during milling and
maybe I can get by without the bellows.
Maybe some of you will tell me what works for you
thanks
bill