My lead screw is prone to getting covered in dust/chips. I have considered getting some sort of bellows to cover the lead screw. Is this recommended for the lead 1515? Are there other methods of keeping the screw clean that I am unware of? I have only used dry lube on the screw, but it still gets messy. My dust collection get most of it, but after running for 10 hours the dust builds up.
You might look at integrating accordion bellows into the system. Perform a forum search for suggestions. As for a source, this post should be helpful Beefed up Minimill
