XYZPrinting Da Vinci 1.0/2.0 Duo/AiO Z-Axis Stepper Caps/Covers

Here's some more covers for you XYZPrinting Da Vinci printer to help keep it clean and from losing screws and such while tinkering! This time around it's covers for the z-axis stepper holes in the front and back. Enjoys :)

**Update**
Confirmed to be working on Da Vinci 2.0 Duo, AiO and 1.0.