Tutorial: How to Model a Planetary Gear Mechanism in Blender


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In this tutorial, you will learn how to model a planetary gear drive with Blender 3D, and test it with Blender’s Rigid Body Physics engine. The gears feature involute tooth profiles and herringbone shapes. We recommend watching our Involute Gear tutorial at https://youtu.be/DqBOva04lcE first.

The end result of this tutorial, a .blend file containing the working simulation of a planetary mechanism, can be downloaded from http://www.otvinta.com/tutorial04.html.

For more free tutorials and 3D models, and to make a donation, please visit www.otvinta.com.

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32 responses to “Tutorial: How to Model a Planetary Gear Mechanism in Blender”

  1. The rigid body version didn't work for me. Everyting I tried the gears exploded away or they jittered but ditn't spinning around in my version created from this video instructions. The downloaded version works and I don't find out why.
    So I decided to use drivers and this works perfectly. I want to describe or illustrate mechanical behaviour not to simulate and test a physical model.

  2. For all the dudes, that arent able to replicate the model – you most likely dont center the 3d cursor at center of the planetary gear (at 12:27), while doing a loop cut and rotating it on Z with 1.5 degrees.
    Thank me later. :)))

  3. followed it exactly word for word, have even compared mine to your downloadable version and somehow mine still doesnt work correctly sun gear drops down before the gears start spinning, have tripple checked everything and nothing is fixing it/getting it to work

  4. Unfortunately, this type of software is highly susceptible to mode errors where the user, following the tutorial, enters the command, but receives errors because the user is in the wrong mode for that command. This is made worse by some commands being written (mouse icon with letter) while others are not (e.g. at 5:15 the mouse is shown with an R for rotate, but the next two commands are skipped: Z and Ctrl+V). In other places, assumption are made about the user's knowledge of the interface. In my case, I can't select the endpoints to connect them. I am certainly in the wrong mode to select points, but the select menu includes scores of options, none of which allow for point selection. With only part of the screen in view, determining if the mode is different and how to get in the correct mode is very difficult.

  5. I cant zero my median point. For example in x value I set 0 and then I press enter and i see that the value is 0.0000007. Then i repeat again and value changeing on 0.0000034. WTF is this?!!! ;[ Please masters of Blender help me. By the way how did u marked accurate 1/3 of the bottom vertecies in 14:40?

  6. Velice krásný tutorial – postupoval jsem podle návodu. Prosím o zaslání blend.souboru – při přehrávání mám trhavé pohyby a ozubená kola se nepohybují plynule.Pomozte moc děkuji

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