Medical Assistant Keychain

Celebrate the hard work of Medical Assistants with this simple yet striking keychain design. The model features the "MA" abbreviation overlaid with a stethoscope forming a heart, symbolizing the care and dedication of the profession.This design is optimized for multi-color printing. I have included both the .3mf file and the standard .stl file.📂 Files Included:MA_Keychain.3mf: Pre-colored and ready for AMS (Automatic Material System).MA_Keychain.stl: Raw geometry for those who want to paint it themselves or use manual filament swaps.🖨️ Print Settings:Material: PLA, PETG, or PLA+ (PLA+ recommended for keychain durability).Nozzle: 0.4mm standard (0.2mm will yield finer detail on the stethoscope lines).Layer Height: 0.20mm standard. For a smoother top surface, try 0.16mm or 0.08mm.Infill: 100% (or at least 4-5 walls) is recommended to ensure the keychain loop is strong enough for daily use.Supports: None required.Brim: Not usually needed unless you have adhesion issues.🎨 Color