Prusa i3 MK2 model (full) for Simplify3D

Simplify3D allows you to customize its virtual print bed with your own STL file. Use this model to show a ghosted version of your full Prusa i3 MK2. It is a nice, intuitive indicator of model scale as you plan out your print.

**MacOS Prep:** (PC users go [here](https://forum.simplify3d.com/viewtopic.php?f=8&t=2356&p=12342#p12342))
* Download the STL on this page
* Open a Mac Finder window and select "View > Show View Options" from the menu
* Click the "Show Library Folder" checkbox
* Go t