A cover for the Sherline mill it’s a must if you wish your mill last. This is the typical “accordion” cover, a very practical solution actually:
Now here’s the leather/delrin cover I actually use. Tough not pretty, a good thing about it is that it allows easy access to X axis lock screw (something that I use a lot).
And here’s the new cover for my modified Sherline cnc mill:
A bit radical but effective and easy to clean (I hope). I will comment the whole design once completed.
Now, the next things I need to tackle will be anti-backlash nuts and column mount.
I3micro Workshop 
Try vacuuming with a brush at the end mills. 😉
Zero chips
Agree, a vacuum and a brush are a must.
Would you be willing to share the design of your leather/delrin way covers? I would love to make a set of my own, the accordion-style covers are not easy to fold and need replacing several times a year….looking for something easier. Thanks!