_Dolphin_whistle_D

_Dolphin_whistle_D


¤ Length 51,5 mm, Height 21,0 mm, Width 19,0 mm, 11 g.


PETG , Support on build plate only (support touching buildplate).

¤ Double frequencies on the whistle. Approximately 4,1 kHz and 4,4 kHz .


A tip is to clear the whistle with a 0.10 mm feeler gauge after printing.

Supports: Touching buildplate only / overhang support only (keep the internal air chambers and labium/window clean and free of support material).



Dolfin_ver.F = Length 49,0 mm, Height 24,0 mm, Width 18,0 mm, 11 g.

If we adjust the theoretical frequencies downward by 7% to compensate for the actual effects of airflow and the print's geometry, we get the following actual frequencies:
21 mm: Chamber 1 3.79 kHz
19.4 mm: Chamber 2. 4.11 kHz
With this reduction, the whistle comes very close to the original's characteristic two-tone sound (typically around 4.10 kHz and 3.74 kHz). This gives it that sharp, penetrating referee whistle sound for which the Molten Dolfin is known.

"Hey!