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As the Berd-Air pump is quiet loud, I decided to design a silencer.
The silencer uses 3 principles:
Sound attenuation of the exiting air flow
Decoupling and soundproof casing
The case is sealed from the inside with insulating mats usually used to silence a PC. The pump itself hangs on a mount from the ceiling. The coupling was printed from flexible material to minimize the transmission of vibrations.
Sound attenuation of the air inlet
Since the air intake through the housing resonated similar to a subwoofer, I have insulated the air intake separately. The housing of the air inlet is filled with cotton wool.
Settings:
Printed "normal" (PLA / PETG):
Printed in TPU:
Printed in Resin:
Would be happy if you comment or like the design!
Printer:
Hypercube Evolution
Rafts:
No
Supports:
No
Resolution:
0,2 mm
Infill:
40%
Notes:
Print the flexible Mounts just with 1 perimeter, 2 bottom / top layer and 10 % infill to ensure enough flexibility.