When printing at low speeds the whole thing vibrates and makes noise. the_digital_dentist – RepRap Forum

Every decent sized stepper I've seen always makes noise. cdru – RepRap Forum

I hadn't anticipated that they would be so noisy, is this normal? plankton – RepRap Forum

3D printers are loud to the point it make them hard to be in the same room with while doing anything productive. Trexation – RepRap Forum

I already managed to reduce the noice by finetuning stepper currents though according to my neighbour it's still to loud. BackEMF – RepRap Forum