Thingiverse
Berd-Air Silencer Case by kuhnikuehnast
by Thingiverse
Last crawled date: 3 years ago
As the Berd-Air pump is quiet loud, I decided to design a silencer.
The silencer uses 3 principles:
Decoupling of the pump and soundproof casing
Sound attenuation of the air inlet
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.
Sound attenuation of the exiting air flow
To silence the air coming out, I designed an air vessel. The air vessel is sealed- the air expandes and the sound is trapped in the chamber. I also recommend filling it with cotton wool. To get the air vessel air tight I recommend to print it with a resin printer.
Settings:
Printed "normal" (PLA / PETG):
Case
Lid
Mounting_pump_big
Mounting_pump_small
Silencer_inlet_bottom
Silencer_inlet_top
Printed in TPU:
Sealing_Case
Decoupling_short
Decoupling_long
Sealing_back
Sealing_front
Damper_foot
Damper_foot_top
Air_vessel_sealing
Printed in Resin:
Air_vessel_resin_print
Air_vessl_bolt_resin_print
Would be happy if you comment or like the design!
The silencer uses 3 principles:
Decoupling of the pump and soundproof casing
Sound attenuation of the air inlet
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.
Sound attenuation of the exiting air flow
To silence the air coming out, I designed an air vessel. The air vessel is sealed- the air expandes and the sound is trapped in the chamber. I also recommend filling it with cotton wool. To get the air vessel air tight I recommend to print it with a resin printer.
Settings:
Printed "normal" (PLA / PETG):
Case
Lid
Mounting_pump_big
Mounting_pump_small
Silencer_inlet_bottom
Silencer_inlet_top
Printed in TPU:
Sealing_Case
Decoupling_short
Decoupling_long
Sealing_back
Sealing_front
Damper_foot
Damper_foot_top
Air_vessel_sealing
Printed in Resin:
Air_vessel_resin_print
Air_vessl_bolt_resin_print
Would be happy if you comment or like the design!
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