A single command is added to the Model Create menu from which Spur Gears, Internal Gears and Rack Gears can be created.

Diametrical Pitch (in English units) or Module (in Metric units), as well as Pressure Angle, Number of Teeth, Root Fillet Radius and Gear Thickness (for extrusion), are common properties for all gear types.

Bore Hole Diameter can be specified for Spur gears; Outer Diameter for Internal gears and Height for Rack gears.

*NEW* The new version 1.1 adds a 'Clearance' property to provide additional backlash clearance.

Numerical values are displayed for pitch circles and heights and sketches for pitch alignment are also provided.

About This Version

Version 1.1.0, 7/7/2021
Second release

Screenshots and Videos

Customer Reviews

41 reviews
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  • Great
    Meylis ashyrov | July 15, 2024


    Matias Ezequiel Flores Gutiérrez | April 01, 2024

    I don't have words to describe this, very complete and it help me for make every gear that i need in my job.


  • No funciona
    Brn Ferreira | March 30, 2024 Verified Download (What's this?)

    Cuando intentas crear un piñón te sale el error "The selected file does not exist."

  • fail mesage
    francois demont | February 29, 2024 Verified Download (What's this?)

    fail mesage: The selected file does not exist.

    Håvard Houen | April 29, 2024

    Could the problem be that your machine is not running Win64? I got the same error message on my home computer with WIN32, but it works fine on my office computer ( Running Win64)

  • Doesnt create gear
    Vít Pospíšil | September 21, 2023 Verified Download (What's this?)

    fail mesage: The selected file does not exist.

    Scott Ferguson (Publisher) | September 22, 2023

    Download, install and try the latest version from the author's website as listed on this page.

  • Pitch dimeter
    Svetoslav Spasov | June 14, 2023 Verified Download (What's this?)


    how to change Pitch Diameter?

    Antoine ROMAND | August 03, 2023

    You can't change the pitch diameter : he is a function of the module and the number of teeth. So, change one of these 2 parameters will modify the pitch diameter. Hope it will help you.

  • Thank you Scott!
    Urs Bee | January 01, 2023 Verified Download (What's this?)


    Easy and efficient, useful

  • Is FM Gears working?
    Mansur Gunoev | January 27, 2022 Verified Download (What's this?)

    Hello! When I am creating a gear using FM Gears, the application shows the inscription "The selected file does not exist."

    What is the problem could be there?

    Thank you

    саша человек | March 20, 2022


    Rinatm Rinatm | April 10, 2022

    Hello, did you find a solution?

    Rinatm Rinatm | April 10, 2022

    I have the same problem, reinstalling does nоt help

    Mansur Gunoev | April 11, 2022

    Hello! I have not found the solution yet

  • Thank you Scott!
    Davide Matera | May 30, 2021 Verified Download (What's this?)

    Easy and efficient, useful

  • Looks Good - Function Questionable
    Norman Doty | May 26, 2021 Verified Download (What's this?)

    I have yet to get an internal gear to mesh properly with any spur gear having matching parameters. The geometry generaterd for the internals appears to be wrong.  The teeth of the internals are well inside the Pitch Diameter circle.

    Scott Ferguson (Publisher) | June 01, 2021

    You should email the author with *complete* details about the input parameters used, the results achieved and the results that were expected.

  • 运行流畅,功能强大,易于使用
    云松 杨 | March 24, 2021 Verified Download (What's this?)


  • Perfect for my project
    Adrian Lai | October 21, 2020 Verified Download (What's this?)

    Had to make a simple geartrain demo piece and this fits the bill exactly. Just have to figure out the gear meshing points manually but that's quite easy

  • Works really well
    Julian Gamboa | September 10, 2020 Verified Download (What's this?)

    The interface isn't the best, but if you know your parameters it works really well. It was easy to install and ran on the first try.

    Thanks for making this!

  • Crashed my copy of Fusion 360
    Jag Jagsson | August 26, 2020 Verified Download (What's this?)

    Just installed this app and tried to launch fusion again but got a warning that 'acge226.dll' is missing and i have to do a fresh reinstall of fuision.  Proceed with caution. 

  • Bug ne génère rien
    ortu hervé | June 28, 2020 Verified Download (What's this?)

    Aprés avoir téléchargé cette application et aprés un rédemarrage il se trouve bien dans l'onglet créate et aprés son ouverture et la validation sur ok rien ne se passe il ne génère rien .

    Qu'est-ce que tu veux faire ?
    Nouveau courrier
    https://apps.autodesk.com/FUSION/en/Detail/" alt="" />

  • Лучший!
    Александр Новиков | June 15, 2020 Verified Download (What's this?)


    Sava Makarov | December 20, 2020

    blin, tolko dla vindi driver, a u meneia Mac

  • Does not worked!
    Dmitry Ivanov | June 03, 2020 Verified Download (What's this?)

    Trying to add new figure with default parameters, but do nothing. Spyr gears is worked normally. Uninstall twice, restart but not effect. Win7x64.

    daba dababin | July 09, 2020

    Здравствуйте,хотел бы спросить, нашли ли вы решение.Просто столкнулся с такой же проблемой и информации в сети нету от слова совсем.

  • Simple and Easy
    Jocelyn Sicotte | May 18, 2020 Verified Download (What's this?)

    No complex parameters to get lost. Simple to understand and does a superb job!

  • need clearance for 3d print
    christopher bessin | May 12, 2020 Verified Download (What's this?)

    backlash/tolerance option?  Or anyone have a suggestion for how to tolerance in a slicer?

    саша человек | March 20, 2022

    да вроде включил

  • Excellent
    Geoff Arnold | April 23, 2020 Verified Download (What's this?)

    I use this for making 3d printed gears and I have always found it easy to use and obtain excellent results.

    Norman Doty | May 26, 2021

    That is what I intend to use it for too (mainly). Have you done anything with internal gears? The geometry it generates for them seems to be off when you exceed somewhere between 100 and 150 teeth. I'm trying to create planetary gear trains so large numbers there are common.

  • Very useful
    Henry Casson | February 07, 2020

    The module entry has a minimum of 0.5 mm,  and the default minimum is entered if you put in anything smaller, so those of us who are designing watch mechanisms , which may use involute gears for some functions, have to make the gear and then subsequently scale the result. This is not stated anywhere, so look out for it. 

    Rodolfo Bertoni | May 06, 2020

    True, I also had trouble creating a 0.289473 module gear. After finishing, I had to resize with the scale so that it was in the exact size.

  • Nice
    Nikita Bryantsev | January 23, 2020 Verified Download (What's this?)

    Nice tool, really. But I got some strange problem creating gears with module less than 0.5. Any gear with module less than 0.5 appears to be sized exactly as 0.5 gear. Pitch diameter circle is correct, but it is inside the gear.

  • Overall
    DAX XTY | January 13, 2020 Verified Download (What's this?)

    love it

  • Awesome
    fatherhorton fatherhorton | November 24, 2019 Verified Download (What's this?)

    I was flailing around trying to figure out how to make a gear, and then I found this. Problem solved, and solved easily.

  • Fantastic!
    Erik | October 02, 2019 Verified Download (What's this?)

    wonderful add-in. love it. stock add-in for spur gear does not have internal gear or racks. only thing this is missing I think is backlash?

  • One of the most useful tool
    Francesco Mistretta | September 28, 2019 Verified Download (What's this?)

    There's not much to say, it allows you to create perfect gears in seconds. It's so useful and well made that it should come standard with all products!

  • Thank the good open source lord that this exists!!!
    Ranvir Chaudhri | September 15, 2019 Verified Download (What's this?)

    just downloaded and installed it (on the latest fusion version) and it works!!! save me so much time!!!! oh my thank you thank you thank you!!!

  • I love it, so useful
    Sebastian Brendler | August 18, 2019 Verified Download (What's this?)

    But since the latest update of Fusion 360, I can't install it anymore...
    I think this has something to do with the new UI of Fusion 360.

  • Very useful
    Emanuel Lantz | August 12, 2019 Verified Download (What's this?)

    Great tool.

  • Thank you so much for making this!
    Dustin Smith | August 06, 2019 Verified Download (What's this?)

    This allowed me to make a plantary gear for a design I am working on. Thanks for making it so simple to do a very powerful thing. 

  • Perfect
    Eternal Edward1997 | July 11, 2019 Verified Download (What's this?)

    Do exactly what I wanted, thanks for writing this Add-in

  • sweet!
    David Petrich | July 01, 2019 Verified Download (What's this?)

    Thank you so much! this is awesome.

  • Great
    Mohit Kumar | May 28, 2019 Verified Download (What's this?)

    The only thing I hope you add is providing backlash! Will help to 3D print these

  • BEST!!
    Aditya Prakoso | April 10, 2019 Verified Download (What's this?)

    Finally I can do the work faster and no more manual drawing. Thanks so muchh!!

  • tolerance
    Evgeny Ivakhnik | March 14, 2019 Verified Download (What's this?)

    how can i adjust a tolerance of calculations?

    Scott Ferguson (Publisher) | March 15, 2019

    We're very sorry for the inconvenience, we just solved the problem of inserting images when the drawing was georeferenced by Civil3D in the latest CAD-Earth update v5.1.21. The problem was sometimes AutoCAD saved the point location coordinates as latitude/longitude instead of UTM XY coordinates. We've modified the source code to detect when the coordinates in latitude/longitude and do the conversion to XY. We are continuously improving CAD-Earth and fixing bugs reported by our users. If you wish we can give you a free CAD-Earth Plus1-year license for all the inconveniences caused. (Your requested refund was entirely processed last month)

  • Awesome!
    Nathan Hood | February 18, 2019 Verified Download (What's this?)

    Very nice, thank you!


  • Genial !!!
    Sebastien Imbert | January 30, 2019 Verified Download (What's this?)

    Il me manquait un generateur d engrenages sous fusion 360 c'est réglé

    Merci  !! !

  • <3
    Bramjs09 Bramjs09 | January 30, 2019 Verified Download (What's this?)

    I love you for this.  Such a huge tool and finally free.  Thank you for doing this, it will help progress the community so much!  

  • Perfect!
    Eddel Beck | January 29, 2019 Verified Download (What's this?)

    Finaly a spur gear creator that's got everything you need...and works!


  • Excellent!
    Fred Genius | January 16, 2019 Verified Download (What's this?)

    Does exactly what you expect, no surprises. Thanks Forest Moon!

  • Great
    Peter Feuerhoyer | January 15, 2019 Verified Download (What's this?)

    Easy to use and gave me exactly what i needed.
    Many thanks!

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