A keychain in the style of the 1993 DOOM game.

This model is for multicolor printing only. I recommend using AMS, but if desired, you can change the color by pausing and manually changing the filament (more difficult, but possible).

Print parameters:
Nozzle: 0.2 mm;
Layer: 0.1 mm;
Walls: 5+;
Infill: 15%+ (I recommend 100%);
Support: None;
Material: PETG (translucent is preferable for the middle color layer).

If you're printing with a 0.4 mm nozzle, I recommend increasing the model scale to 150-200%.