Emoji (Single-Color Printer, Commercial Use Allowed). Grinning Face with Smiling Eyes

Please read the entire text before printing! I often make the mistake of not doing so.

I really appreciate support of my projects: https://boosty.to/artificialworld/donate

1. Model:

Diameter: 90mm. Scaling down may require additional work on tolerances and snap-fit joints. For that I provide the base model (other/EmojiOriginal.obj).
Parts: top and bottom. By removing the bottom part, you can place emoji on flat surfaces.

2. Printing Instructions:

I printed this Emoji with a Flashforge Adventurer 5M with 0.4 mm nozzle

Sphere, Top and Bottom

Recommended material: Basic yellow PLA

Layer height: 0.2 mm
Sparse infill density: 5%
Sparse infill pattern: Grid
Brim type: Outer brim only. The brim helps maintain a level surface, which is important for achieving a smooth sphere when joining the top and bottom pieces. Otherwise, a gap may form due to warping.
Brim width: 5mm

Optional:
Initial layer speed: 25 mm/s

Everything else is default orca slicer settings.

Eyes and Screw

Recommended material: Basic black PLA

Layer height: 0.2 mm
Sparse infill density: 5%
Sparse infill pattern: Grid
Detect thin wall: True. Otherwise, you get bigger holes.
Brim type: Outer brim only
Brim width: 5mm
Initial layer speed: 25 mm/s
Initial layer height: 0.4 mm. There are many settings here for good adhesion to the plate because the parts are small and vertical.

Everything else is default orca slicer settings.

Tongue

Recommended material: Basic red PLA

Layer height: 0.2 mm
Sparse infill density: 5%
Sparse infill pattern: Grid
Brim type: Outer brim only
Brim width: 5mm
Initial layer speed: 25 mm/s
Initial layer height: 0.4 mm. There are many settings here for good adhesion to the plate because the part is small and vertical.

Everything else is default orca slicer settings.

Teeth

Recommended material: Basic white PLA

Layer height: 0.2 mm
Sparse infill density: 5%
Sparse infill pattern: Grid
Enable support: True
Type: Normal (auto)
Style: Default (Grid/Organic)
Initial layer speed: 25 mm/s
Initial layer height: 0.4 mm.

Everything else is default orca slicer settings.

3. Assembly Instructions:

Visually check that the edges of all parts are smooth (e.g. fully remove a brim). Then follow the steps listed below in the order given. To give you some confidence, I assembled emoji 3 times and all of them were successul.

Eyes

The quality of the printed snap-fit joint for eyes can be problematic, but tolerances should allow a slightly misshapen connection. Apply some (potentially substantial) force until the eyes are fully seated in the sphere and are slightly behind its outer wall.

Tounge

You will have to apply pressure to the far end of the tounge, so doing this step before inserting teeth will help.

Teeth

Requires some force just as with everything else. Try to align teeth connectors with holes and push teeth straight.

Sphere

First, insert (clockwise) the screw into the top or bottom section. Then, without applying force, tighten (clockwise) the other part. Once two sections meet, do not tighten further or you will break the screw! If you break the screw, use a screwdriver to apply significant vertical force to the screw and turn it counterclockwise.

4. Licence:

Allowed Use

The license for this model gives you complete freedom to use it in any way you like (e.g. you can sell printed emojis), as long as you provide attribution. For attribution, I recommend adding the URL to this page.