Create a 3D file in Rhino. Once created export the file as STL . Then you need to import the file into Finder software. Save on a USB drive and then print on printer.
Printing on the Prusa Original i3 Mk2
Create a 3D file on Rhino. Export the file as an STL. Open the file in the Slic3r application. Add rafts and supports if needed. Export/slice the file as a gcode. Save to a SD card. Print on printer.