Piano Hammer Action mechanism

  • October 31, 2015
  • Blender 2.7x
  • Render: Blender Internal
  • Creator: swift502
  • License: CC-BY
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Sound is a vibration that propagates as an audible mechanical wave of pressure and displacement, through a medium such as air or water.

I always wondered how pianos work. So I did some reasearch and created this video. Hope you like it.

The piano model itself is a modified model from andreschneider's Pianos blend published under the CC-BY licence.

  • Blend contains 2 scenes. SingleKey with one HQ key, and 88Keys with 88 LQ keys.
  • The key skeleton comes with 3 NLA strips: Rapid, Begin, and End. Play the animation to see what they do.


  • iAmTheWalrus profile picture

    Really awesome! Good job!

    Edited November 02, 2015
  • airwinggraphics profile picture

    Wow! Many years ago (back in the early 70s) I took a master class on piano tuning at the local community college in Phoenix, AZ. I learned to tune using equal temperament and a bit about regulating the piano action. You a great job creating and animating it! Thank you for sharing!

    Art (Air Wing Graphics)

    Edited November 02, 2015
  • swift502 profile picture

    Ok, good. I don't own piano myself so I can't really tell if it can look exactly like this inside. Based it off wikipedia and google images. Thanks a lot. :)

    Edited November 03, 2015
  • Lomar profile picture

    Sweet! (This may be just what I need to finally figure all this out! ;-) ) Nice video too.

    Thank you for sharing! Peace.

    Edited November 02, 2015
  • swift502 profile picture


    And ... to figure what out?

    Written November 03, 2015
  • Lomar profile picture

    How these mechanisms work. I have always had this vague notion of how a piano translates a key press into a string being struck, now I can work it out in gloriously animated 3D! Always curious about how things work...

    Written November 04, 2015
  • varden profile picture

    Very well done. I showed it to my father, who is repairing and tuning pianos for a living, and he said everything is correct in the video.

    Written December 12, 2015
  • swift502 profile picture

    That's awesome! Thanks. :)

    Edited December 12, 2015
  • VincentM profile picture

    Fantastic. Thank you.

    Written December 27, 2017
  • swift502 profile picture

    You're welcome! :)

    Written December 27, 2017