About this 3D model
This is a skin for the i3 mega. This print can be done on a single colour 3D printer they just have to be printed as separate files on top of each other. Import them both into a slicing software and line them up perfectly. Then print the eyes on their own in red and then after it is finished, print the black body directly on top of it. You will have to quickly swap out the filaments between each file. Remember that the eyes can not have any sort of brim or skirt. I designed it in fusion 360. Enjoy :)