This is for the Zortrax M200 3D printer. I made this extended version so that the filament entered up from the center of the spool instead of pulling over to the back wall of the printer. Feel free to edit the file if you want to make any changes!
This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/kUtfQrgewCL
Edit: I've added a version 2 which has a slot in the side if you prefer to remove the filament that way.