Fusion 360 Tutorial: Planetary Gear Train Modeling and Animation

Рет қаралды 79,276

Күн бұрын

Fusion 360 Model of the Planetary Gear: a360.co/348xD84
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This is a Fusion 360 tutorial that will show you how to model and animate a planetary gear train. We model the ring, sun, and planet gears using a spur gear add-in, and then proceed to model a carrier that will connect the planet gears to the output shaft.
The tricky part of modeling a planetary gear system in Fusion 360 is in defining the motion links between the gears. When defining the relative rotation of the sun gear and planet gears, we must also take into account that the carrier is rotating as well. In this tutorial, I show how to calculate the gear rotations and set the motion links correctly in Fusion 360.
Please let me know in the comments below if you enjoyed this video and would like to see more like this.
Correction: 2:07 80+16/3 = 32, not 19

Пікірлер: 119

@alokbhushan9026 Жыл бұрын

At time 2:10 while checking for correct meshing. The whole number is 32 not 19.

@togoboyz5107 Жыл бұрын

For any new comers that are having trouble make sure the mesh is correct, instead of using the equation 360/6 for the carrier- sun gear motion joint, I did 360/5 and it worked for me 👍 ( so the ration is 5:1, 80 teeth and 16 teeth)

@lidia6280 Жыл бұрын

you saved me, thank you!

@Christian_Banks 10 ай бұрын

I noticed this after watching the joint flags rotating and counting the rotations. Then I had to get rid of the "+360/(80/16)" added to the other motion links. No extra math needed, just the correct formula from the start. Thank you!

@matthewjohnson7054 3 ай бұрын

Life saver - I've been rewatching the vid for 20 min trying to figure out where I went wrong!

@suvhajeetroy8704 24 күн бұрын

thanks man!!

@wickgrover2744 3 жыл бұрын

This is unquestionably the most informative tutorial I have so far watched. Thank you thank you thank you. I could never have figured out the solution to this motion. Oh and btw I had to re-watch numerous sections in quarter speed which I'm so glad you included (being a beginner).

@jaredarm 3 жыл бұрын

I wasn't getting it to mesh at first but then realised I had added the 360/(80/16) to the sun-carrier link as well. Removed that and now everything is working as shown! Hope that helps someone. Awesome tutorial. It would be great to drive some of this parametrically!

@RELUvance 3 жыл бұрын

Glad you were able to figure it out, and thanks!

@vedantkulkarni6971 3 жыл бұрын

but he did add that to the sun carrier, it worked for me only when i didnt add that formula to the sun carrier. why is this happening?

@JoelMartinez-vr2bx 3 жыл бұрын

Thank god!! It worked for me too

@mc-muchyt3845 2 жыл бұрын

Thanks for getting me 100 percent in my school project🤙🏾🤙🏾

@ulisescruz157 3 жыл бұрын

You only have 3 videos on your channel and they are fantastic, I invite you to continue generating more content like this about fusion 360, there is more and more community learning about fusion 360

@varunahlawat9013 Ай бұрын

Great tutorial! I Fed up my first one but then today I did it again and in less than 5 minutes I made a perfectly meshed gearbox!

@RELUvance Ай бұрын

Great! Glad it helped!

@runforitman 2 жыл бұрын

thank you for including the maths and also for laying it out in an easily screenshottable way; now I have an easy way to quickly reference the maths

@nathanking9771 3 жыл бұрын

Great job! Thanks for sharing

@fn326 4 жыл бұрын

This is a good tutorial. Good thing you explained every step clearly.

@RELUvance 4 жыл бұрын

Thanks Sky! Glad it was a help to you.

@charlesthomas8375 3 жыл бұрын

if you are confused at 4:35 , when you create your gears. Keep the pitch diameter. Then just measure the distance from the planet gear's diameter to the ring gear's pitch diameter. Then just move it in that direction by that value

@RELUvance 4 жыл бұрын

The hardest part of modeling a planetary gear in Fusion 360 is getting the motion links correct. Just remember that the relationship between the rotation of the sun gear and the planets also needs to take into account the rotation of the carrier.

@therokeree 8 ай бұрын

Thank you, this helped a lot with my school project assembly

@kletchatii 9 күн бұрын

awesome video. thank you a lot

@RELUvance 9 күн бұрын

Glad it helped!

@FaldoAu Жыл бұрын

Best thing I’ve seen in weeks

@runforitman 2 жыл бұрын

I never knew about the project tool I always would redraw it very cool

@zabihtoosky658 3 жыл бұрын

Excellent video, very informative. Thanks for posting.

@RELUvance 3 жыл бұрын

Glad you enjoyed it Zabih!

@CleanPhilWanted 4 жыл бұрын

I thought this was very good, I had no issues that weren't caused by me (that's how/why one learns). Great video Dust!

@RELUvance 4 жыл бұрын

Thanks Phil!!

@WillDonaldson 4 жыл бұрын

Really good tutorial, thanks!

@RELUvance 4 жыл бұрын

You're welcome! I'm glad you enjoyed it Will.

@valveman12 4 жыл бұрын

Dust4K Thanks for this video, it really helped me solve a problem I was having with gear alignment.

@RELUvance 4 жыл бұрын

Awesome! Glad I could be of help to you valveman!

@bur1t0 4 жыл бұрын

Awesome, thanks it really helped. I found it a bit easier to instead of looking it from the Sun gear, looking at everything as from the carrier instead. The planets spin 2.5 times the carrier, and the Sun spins 6 times the carrier. But I'm sure after some sleep your more verbose explanation will flick on a light somewhere. Thanks again!

@RELUvance 4 жыл бұрын

Glad it helped!

@andrewmack4830 3 жыл бұрын

Well done. Nice explanations as you went. Very useful

@RELUvance 3 жыл бұрын

Thanks man, I appreciate it!

@lordsmith830 3 жыл бұрын

I really want to thank you 🌹

@caiobraga3425 2 ай бұрын

Amazing!!!

@RELUvance 2 ай бұрын

Really glad you enjoyed it!!

@strzaua123 3 жыл бұрын

awesome tutorial, hope to see some more videos from you soon! subscribed!

@RELUvance 3 жыл бұрын

Thanks! Glad you enjoyed!

@zimmermannCH 4 жыл бұрын

Awesome Tutorial Dusk^^ i hope you do more ;)

@RELUvance 4 жыл бұрын

Thanks man! Yes I should have some more up soon.

@manimaranganesan2152 3 жыл бұрын

wowww....great tutorial...thanks for that!...

@RELUvance 3 жыл бұрын

Glad you liked it!

@jonnycreative9934 Жыл бұрын

你的视频是我看过行星齿轮介绍里最好的

@lalunetu-thegamercat.3288 4 жыл бұрын

the last two comments are ppl who dont have a clue of maths. It was a perfect explanation, Thanks!.

@RELUvance 4 жыл бұрын

Thanks for the support Alberto!!

@kunhaklee1950 4 ай бұрын

2:08 It's minor error but 80+16/3 = 32, not 19

@RELUvance 3 ай бұрын

Thanks for this, I will add this correction to the video description.

@randyfleet9968 3 жыл бұрын

We are leaving something out!! Based on the last formula on screen @2:14, number of planetary gears divided into R + S to see if they fit! Three AND 4 will give a whole number, but I don't see how you can four planet gears in the same ring gear that fits three!

@Gebel79 3 жыл бұрын

Awesome video, thx. One comment, the calculation about the number of planets is 32 instead 19. It is still a hole number. Time: 2:09

@connorcertain477 Жыл бұрын

Bro was traveling at lightspeed

@yjoe978 3 жыл бұрын

Isn't it that because addendum and dedendum are not symmetric from the pitch line (I mean 1:1.25) the negative of an external spur gear is not the same with the internal gear?

@davidcalkins8087 2 жыл бұрын

Very cool but way beyond my abilities. Is there any chance you could design a planetary gear set with four planets and a 16 inch ring gear?

@pcastiglione411 2 жыл бұрын

Great video it help me a lot, only problem when I went to print on my 3 d printer I had to offset the carrier and Sun of -.090 to make it work

@RELUvance Жыл бұрын

That’s cool that you printed it. Glad that it helped you.

@TheConceptAcademy 3 жыл бұрын

Is there any method to change the gears accordingly if we need different ratios. rather than modeling again and again for different ratios

@kvnchn3429 Жыл бұрын

I printed mine out using slightly different numbers, but they appear to be super tight and dont spin too well. Any ideas where I might've went wrong? Thank you!

@greenknight5432 Жыл бұрын

We're following this tutorial as an assignment in school

@cameronchartier6950 3 жыл бұрын

Is there a way to get the motion to work without the carrier?

@diwakarans1221 2 жыл бұрын

Can I use the module value 1 , because I need it compact

@gabipaczolay5183 4 жыл бұрын

Hey Dusk, great video! this really helped a lot! I just had a question... so I modeled everything exactly the way you did, but when I rotate all my gears at the end (even after the updated formula 360+360/(80/16)), I have gear teeth overlapping with teeth from other gears. Do you ever use contact sets in modelling gears? This is my first time doing gears in Fusion so I'm quite new to this still. Thanks!

@RELUvance 4 жыл бұрын

Yeah it is still a bit tricky sometimes to get the gears to mesh correctly. Are they all rotating at the correct speed but just not meshed? Or are they rotating at incorrect speeds too? I don't use contact sets for gears because there are so many contact points that it seems to slow everything down so much. Contact sets seem to work pretty good for simple one-contact point components but haven't had much luck with gears.

@callanjerel 2 жыл бұрын

@@RELUvance I had the exact same problem as @Gabi Paczolay, but I was able to fix it by changing the rotation of the sun ring from 360 + 360/(80/16) to 360 + 360/(80/35). I just put in random numbers until it meshed well, I have no idea why its 35 instead of 16, but it meshes perfectly. The planet gear also didn't mesh well with the sun gear

@devopssimon 4 ай бұрын

Can some give me what the correct result should be for (80+16)/3. At 13:51 Dust4K suggests the answer is 19. Sorry if I am stickler, but I get 32 and I want to know that I am doing the correct calculations, or is the answer irrelevant and just needs to be a whole number?

@G-REV_CHUCK 2 жыл бұрын

just saying on the last equation in the beginning of the video 80+16 / 3 you put 19 but when I calculated it I got an answer of 32.. Am I wrong or are you? Its a whole number either way but I would still like to know.

@abhyuditmanhas6109 3 жыл бұрын

The gears are still not meshing properly for me. Could anyone help ?

@fikajlo 3 жыл бұрын

why are the downloads disabled for the model?

@safowts.t7308 2 жыл бұрын

what the Gr stand for? 1:30

@rdvangumus6254 3 жыл бұрын

Why do u use inventor??That process so basic in inventor gear design module.

@Ljmcc 2 жыл бұрын

Can you please slow down when you choose the command. Alot of us is following you but we have to slow down or pause and quickly try to see what you choose. Its ok for experienced users, but for us that are beginning, please slow down a bit. Thanks

@chrismiksovsky5871 4 жыл бұрын

I'm working on a design that has a planetary gear so this is a very helpful video. However, I think you've got an error at 2:10: (80+16)/3 = 32 [not 19]

@fn326 4 жыл бұрын

So what should you do if the answer is not whole number? What parameters should you adjust?

@RELUvance 4 жыл бұрын

Ooops I think you're right - good catch Chris!

@RELUvance 4 жыл бұрын

@@fn326 Hi Sky, just play with the numbers of teeth until you find a combination that works for you.

@bruceburby4265 2 жыл бұрын

This old Seabee must be missing something. (80+16)/3 = 32 ???? Other then that I like the way you layout you video.

@groznoy 3 жыл бұрын

Dust4K, thank you for the video. I went from knowing nothing about gear science or fusion 360, to creating a rudimentary system. The gear ratios are all messed up but I have a fundamentally different question. I'm trying to create an eccentric 3 gear system inside a gear ring. The 3 rings are of different size, but i was able to make them rotate as a system, albeit with incorrect rotations. Anyway, what i'd like to do is ground the outside ring and have the 3 gear system rotate within it. I'm anticipating the 3 gears rotating around their center AND along the outside ring. Is this possible?

@RELUvance 3 жыл бұрын

First, I'm so glad the video was able to help you! That's impressive that you were able to get as far as you did without any prior experience. I "think" I understand what you are asking. Yes, you can ground the outer ring, or even the sun gear, and have the other gears rotate accordingly. It should actually be similar equations to what I used in the video, but just applied to different gears. Fool around with it and I think you should be able to get it. Would be interested to hear how you made out. Try this simulator: www.thecatalystis.com/gears/ You should be able to set the ring gear speed to 0 to achieve what you are looking for.

@groznoy 3 жыл бұрын

@@RELUvance Thanks! I have decided to abandon the 3 gear system and just go with what you have. I do have a problem now where I can't join the pivots to the carrier. When the carrier rotates, the pivots/shafts stay in place. When i try to rigid join them (shafts with carrier), then the carrier doesn't move. I've been able to get all the gears to move properly without the carrier. Any advice? Thanks.

@RELUvance 3 жыл бұрын

@@groznoy It sounds like you have the shafts grounded... perhaps inadvertently when you were trying your other scheme? I would try ungrounding / unconstraining everything and starting from scratch to see if that helps.

@Jane-es9ez Жыл бұрын

why dont you put teeth on the outer diameter of the ring and add another planetary to move the same speed so the outer planetary is bigger and it makes a 1 to 1 ratio increase torque why didnt anyone put teeth on the outer diameter of the ring

@ExtantFrodo2 Жыл бұрын

Why does my intuition hairs stand on end at the idea of making proper tooth profiles for internal gear teeth simply by subtracting a positive spur gear from a cylinder?

@anthonywilley2472 Жыл бұрын

I think your intuition is right. Subtracting a spur gear from a cylinder isn't going to give you the right tooth profile for a ring gear.

@magicstix0r Жыл бұрын

What would you do if you wanted the carrier to be fixed but with a rotating ring gear? I can't seem to get the joints and motion links to work...

@-coolerlegothings-9784 Жыл бұрын

Same, I'm trying but the second motion link from one planet gear to another is just rotating the holder that keeps the sun and planets in place

@WormFactor 4 жыл бұрын

How do I get the ring gear to be smaller? Pretty sure I have to change module but how does this affect the root fillet radius?

@RELUvance 4 жыл бұрын

Hi Eric, there are a couple of ways to do it. Yes, you can use a smaller module, but you can also change the number of teeth and keep the module the same. Root fillet radius is calculated as 0.38 x module.... I didn't use this in the video but that is the correct way to calculate it.

@WormFactor 4 жыл бұрын

@@RELUvance Thank you!

@captdan7876 2 жыл бұрын

I've been trying for a few hours now, I still cannot get my gears to mesh properly. they overlap almost immediately . I have restarted this project thrice now. anybody else have this issue?

@camymls2262 2 жыл бұрын

I found why, do you still need it?

@JustDailyGamers 4 жыл бұрын

How did u get the add in to create a gear on the top plane?

@RELUvance 4 жыл бұрын

Hi Sven, Fusion 360 comes with the gear addin already installed... you should be able to find it in the menu.

@noahechavarria2149 Жыл бұрын

Poggers

@Digtal101 3 жыл бұрын

So I followed your instructions to the exact T and if I drive the sun gear, the gears are still not meshing correctly. Is there anything you recommend for me to do?

@RELUvance 3 жыл бұрын

Hmm, difficult without actually seeing... double check all your joints... very easy to mess one up and that will throw everything off.

@Digtal101 3 жыл бұрын

@@RELUvance Okay so I figured out what was wrong and it's really weird but worth sharing. So for the motion links that you were setting for the Sun-Ring and Planet-carrier, I had set the Planet-Carrier angle to (360 / 2) instead of 180 like you did. For some stupid reason, that was the cause of the gears not meshing correctly. If you ever decide to update/revise this video, can you please mention my findings?

@RELUvance 3 жыл бұрын

@@Digtal101 That's great! (but strange)... glad you were able to figure it out and thanks for sharing with the rest of the community.