Berd-Air Silencer Case

prusaprinters

<p>As the Berd-Air pump is quiet loud, I decided to design a silencer.</p> <p>The silencer uses 3 principles:</p> <ol> <li>Decoupling of the pump and soundproof casing</li> <li>Sound attenuation of the air inlet</li> <li>Sound attenuation of the exiting air flow</li> </ol> <ol> <li>Decoupling and soundproof casing<br/> 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.</li> </ol> <ol> <li>Sound attenuation of the air inlet<br/> 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. </li> </ol> <ol> <li><p>Sound attenuation of the exiting air flow<br/> 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:</p> <p>Printed "normal" (PLA / PETG):</p> </li> </ol> <ul> <li>Case</li> <li>Lid</li> <li>Mounting_pump_big</li> <li>Mounting_pump_small</li> <li>Silencer_inlet_bottom</li> <li><p>Silencer_inlet_top Printed in TPU:</p> </li> <li><p>Sealing_Case</p> </li> <li>Decoupling_short</li> <li>Decoupling_long</li> <li>Sealing_back</li> <li>Sealing_front</li> <li>Damper_foot</li> <li>Damper_foot_top</li> <li><p>Air_vessel_sealing Printed in Resin:</p> </li> <li><p>Air_vessel_resin_print</p> </li> <li><p>Air_vessl_bolt_resin_print Would be happy if you comment or like the design!</p> <h3>Print Settings</h3> </li> </ul> <p><strong>Printer:</strong></p> <p>Hypercube Evolution</p> <p><p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div><strong>Supports:</strong></p> <p>No</p> <p><p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0,2 mm</p></div><strong>Infill:</strong></p> <p>40%</p> <p><br/> <p class="detail-setting notes"><strong>Notes: </strong> </p><div><p>Print the flexible Mounts just with 1 perimeter, 2 bottom / top layer and 10 % infill to ensure enough flexibility. </p></div></p> </p></p> Category: 3D Printer Accessories