Toothless eyes in color without a multicolor printer

thingiverse

To print toothless in color without a multi-material printer, you can still achieve a colorful result. To get the green eyes with white spots like mine: print pupils_spots_holed_print_at_97percent_scale.stl in black at 97% scale, eyes_low_poly_print_at_97percent_scale.stl in green at 97% scale, and spots_white.stl (print them with the skull). The spots need to be glued slightly. The eyes and pupils surface must be well prepared (cleaned from all print defects). The insertion of the eye/pupil pairs into the eye sockets is a press fit, requiring no glue. A good-looking situation should be that the pupils alone fit in easily (just going straight in). First, insert the eyes (green part) in position, using a tool like a flat screwdriver to press it against the inside; it should lock. They must be fully inserted. Then, press-fit the pupils. You should feel some resistance but shouldn't have to force much. If you don't like the spots, you can still use the original files for the eyes and pupils, but they'll need to be scaled at 97% to fit in the eye sockets. I had no problem printing the skull and tail and tongue as separate parts. I advise printing two copies of each because when you've finished it, realizing it's so cute, you'll want a second one. And switching filament four times is boring. Plus, it slows down the print and gives more time for layer cooling, which should increase quality slightly. The freecad model used for checks and boolean operations was provided. The original pupils files couldn't be processed by freecad for boolean operations. A convex hull was first computed with meshlab as the only solution found to repair the defects of the file, then poly reduction was done with mesh mixer to have an amount of polygons manageable by freecad... something very simple turned out to be very time-consuming.