X-Axis Dust Cover Upgrade for Anycubic Mega X

The original model is a great idea, and the Y-axis cover is a perfect solution. The X-axis had a few problems which I address in this remix.

I'm able to print it in one large piece. If you need to, you can cut it in half in the slicer, then put it together like the original.

• Replaced the fillet with a chamfer for smoother printing
• Thickened the top horizontal plane (which prints vertically and was too thin to be stable)
• Placed some cutouts to accommodate some screw heads
• Added a more substantial fin that fits snugly inside the channel at the rear of the x-axis beam. It's a friction fit, with enough friction to hold it in place without fasteners or glue.