How to Design a Cycloidal Disk in Fusion 360

I've spent quite the considerable amount of time trying to figure out how to properly design a cycloidal disk/gear. Hopefully this can be a helpful resource for others like me.

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[garysimmons]

When I heard you say it took you 2 years to arrive at this point it made me feel better because that's the amount of time I estimated just to get to this point myself. Thank you for your hard work.

[dekutree]

I think this equation will produce the same curve without having to go through the process of setting up the circles and plotting points one by one:
x = R * cos(t) + e * cos(N * t)
y = R * sin(t) + e * sin(N * t)
R = ring radius
N = number of pins
e = eccentricity
t = 0...2pi
Then offset by pin radius, same as in the video around 9:00.

[smellycat]

I just finished this tutorial and got it printing. I’m excited about the possibilities with this gear reduction. Thank you very much for teaching what you have learned.

[lowens]

Nice and detailed, thank you.
Designs like this are a good example of using parameters too to help prevent mistakes or update designs easier.

[artantme]

Man, thanks for breaking everything down, i'll try this (hopefully) in january and give some feedback and thoughts!

[mateussousa]

That's the best practical tutorial that I've seen. Thank you so much.

[MatchaMakesThings]

Exactly the video i was looking for great information. Not just showing how to do it once but how to do it in the future for other options.

[macaion]

Thank you very much from Japan for sharing this great job.

[daleballance]

Love your way of doing it and will be using it to design a star tracker. Thank for your help I've been looking all over for advice

[ddegn]

Thank you, thank you, thank you for making this video!
I like to build robots myself and I have a 3D printer on order. A cycloidal gear system is one of the things I want to try to build. This video should help a lot.

[coolpratheesh]

great job explaining such a complex concept so easily.

[laurentbreyer]

This is genius! Fantastic work! I can’t wait to see more!

[hamnavoeper]

Thank you! I've been looking for something like this and this was perfect!

[gppl]

Man, right after yours utube shows a tutorial for same thing but in solidworks. Theirs is twice longer and not understandable at all. Just a video of someone silently designing something for unclear reason. So, great work! Thanks for sharing, it's very useful indeed :)

[ivangutowski]

the 'point' tool is in the sketch>create menu.

I also found I had to draw the lines and dimensions in the exact order and start/end point as he did, or my model did not react.

Got there in the end, thank you

[anandpatidar]

Thank you levi for bringing such an easy uproach. This Video was really help and very easy to understand.

[BrianBoniMakes]

I just followed your method and it worked. On the points that looked too far apart I just added a few more points between the ones that were there to make it look smoother. It was nice to find this tutorial but all the deleting of constrains is a recipe for errors. I want to experiment making more cycloidal gearboxes in Fusion 360 but there must be a better way, there should be some way to do this automatically like the parametric function in Solidworks where you just plug in the trigonometric function and it plots the line. Keep up the interesting work, I subscribed!

[DEtchells]

Wow, incredibly useful and well-presented, thanks!!

[lambsauce]

to be clear, offset is the rightmost button in the *modify* menu. when you press O, you'll see it become blue ;)

[weetzinng]

Thank you so much for the detail explanation!