How to Design a Rack and Pinion Assembly in Fusion 360 - Part 1

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In this design tutorial we look at my approach towards designing gears using the built in gear generator in Fusion 360 and how to get two gears to align and mesh perfectly.

[exporterx]

Oh man this tutorial helped me a lot.
btw about 9:05
ig u guys already know tho u can just type in 15/2 instead of 7.5 when you wanna get a half of 15.
u can even go like 360/24/2 directly.

[michaelbedard]

Very good video.

At about time 9:30 you start discussing option of clearance between teeth. In fact the "involute curve shape" that is used (the set of nodes on the arc you showed earlier) means that the two teeth actually roll on each other. In Gear tooth design that shape is calculated by the Module (which you selected in the earlier Add-in script.) In essence, if you design a gear using a module value, any other gears designed with that same module will mesh smoothly with it.

I thought I would give a quick overview to help understand what is going on with the gear tooth add in behind the scenes. Hope its of use.

[noweare]

Really good video. I like the way you explain things. Very organic but with math to back it up on a foundation of common sense, awesome.

[rick_]

Glad to see you doing mechanical projects. I think FDM printing is a good match for building functional and mechanical things. The tolerances in FDM printing aren't great but they are good enough for a lot of projects. I'm looking forward to seeing what this is used for.

[hozerino]

This is awesome, I loved this course, it is exactly what I needed and ultra-simplified the way I saw gears and their interactions. The explanation on how to quickly measure things was also super helpful!

[PAULHODARA]

Really excellent and clear explanation. I like the way your brain works, very logical.

[baili]

Every word speak by you is very useful, in other words, no one word waste time, Very thank you !

[diterex]

Would you also do a video about herringbone gears?

[tommyd]

great tutorial ! but how would i do this if my gears have a slant to them, if you get what im saying, I am using a gear that the tread has about a 45 degree angle to each tooth, but i have no idea how to make a gear rack for it

[KurdimhurErshplitenlaudenbumer]

Thanks mate! Really helpful for creating non-typical lock for my garage!

[seabreezecoffeeroasters]

Doing math in the dialogue boxes is always worth a mention too 🙃

[timothybarlow]

Not sure if this is happening to anyone else but when I create a copy of the gear, move it and try to rotate it to have the gears line up, both gears rotate instead of just one causing them to stay perfectly not aligned, does anyone know how I can solve this problem?

[maxrybold]

There is a fair bit of detail that goes into gear design... And yes your teeth mesh, but their profile are off!

[satchelsieniewicz]

"aligns so perfectly" zooms into them not meshing well