Two washers oscillate on the steel threaded rod with the loweringthreaded rod 3: the microphone is on the bottom of the rod and the pads move towards it.
It's a prusa 3d printer doing mesh calibration, which is performed once before each print,. In this case it's testing 49 on the print bed, instead of the default 9.
Sound of a manual pencil sharpener's handle being cranked without anything in the sharpener itself. The sharpener is shaped like a camera. Recorded in the lab sound booth at confederation college. Recorded at 48,000 hz. .
This was recorded with a blue yeti mic indoors on a mechanical keyboard with blue switches. It is the actual typing of words not just pounding on a keyboard. Feel free to use it in whatever you like.