PRO-Whistle_B_Dolphin

# PRO-Whistle_B_Dolphin

PETG
¤ Pealess whistle.
¤ Length 52,4 mm, Height 24,7 mm, Width 19,0 mm, 12 g.

Perfect for referees, coaches, outdoor survival, or everyday safety.
Because it is a pealess design, there are no moving parts to jam, freeze, or deteriorate over time.

Recommended Print Settings:

¤ Material: PETG (highly recommended for outdoor durability and impact resistance).
¤ Layer Height: 0.15mm - 0.20mm (smoother internal walls improve airflow and sound quality).
¤ Wall Line Count / Perimeters: 3 or 4 (Crucial! The whistle must be 100% airtight to reach full volume).
¤ Infill: 40% - 100%

PRO-Whistle_B_Dolphin_ver2_1.
Support on build plate only (support touching buildplate).