3D Printed Planetary Cycloidal Hub Gearbox. How far can it drive?

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Thanks for watching! I think this gearbox is pretty cool and would like to keep testing it in the future. Let me know if you have any ideas on new testing methods or anything else you would like to see.
CAD Files:
drive.google.com/drive/folder...
Thingiverse: www.thingiverse.com/thing:568...
Printables: www.printables.com/model/3334...
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Опубликовано:

29 ноя 2022

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Комментарии : 679

@michaelrechtin Год назад

Get the exclusive NordVPN deal here at nordvpn.com/michaelrechtin. It's risk-free with NordVPN's 30-day money-back guarantee!

@l0I0I0I0 Год назад

Michael, would this be good for turning a possibly heavy solar panel 360 deg? I'm trying to build a solar array and need precise measurements, and it will of course be in the sun for 30 years.

@reizinhodojogo3956 Год назад

not hating but did they pay u?

@l0I0I0I0 Год назад

@@reizinhodojogo3956 Nord is probably giving him some comp but it's understandable as it's hard to work for free.

@Thoran666 Год назад

Nice gearbox Micheal. To test the gearbox further just let it drag some weight while doint it's rounds.

@LecherousCthulhu Год назад

You could just print a second tire and use them to hold up a platform that you can then place weights on. You can then use both gearboxes that you have printed in order to determine wear and condition changes over the same period while applying load to the gear boxes. This will allow an expansion of your testing because you can slowly expand this out into a small automobile with actual wheels for road testing

@theoldknowledge6778 Год назад

Best 3D printed reduction I've seen so far on RU-vid! It looks like there's almost no backlash!!! Nice work

@TheStuartstardust Год назад

4:10 - not exactly backlash, but alignment of spur gear seems to be important to ensure even loads. And with this, biggest amount of backlash. Is it back driveable? 🤔 Anyway - cool project, super nice of him to release files 👍😎

@L0615T1C Год назад

@@TheStuartstardust That was before the 2nd cycloidal drive was installed

@robertchristmas7050 Год назад

@@TheStuartstardust

@MegaCadr Год назад

Who knew you could design gear boxes in fusion 360 so quickly? Awesome video!

@BloodyMobile Год назад

Engineer's version of "How to draw an owl" "Step 1: draw some circles" "Step 2: draw the rest of the fucking owl"

@Eluderatnight Год назад

@@BloodyMobile if they write a patent like that then its free realestate.

@darkshadowsx5949 Год назад

I thought i was quick at designing in fusion 360. this guy is legendary.

@badbabyboyo9593 Год назад

There are a couple of good gear building extensions for fusion 360. Idk if he used those but they are worth checking out

@BloodyMobile Год назад

@@badbabyboyo9593 FreeCAD also has some, including some specialized for cycloidals.

@MatrixRay19 Год назад

Nice video man! Just a couple of things: 1. I'm pretty sure that tire tread should be run on the opposite direction(CCW instead of CW), 2. Ideally for 3D printed parts you want heat set inserts that look like herringbone gears instead of the flat ones you used, this makes so they don't slip out later. CNC Kitchen has a great video on this topic.

@evanbarnes9984 Год назад

Glad I'm not the only one who noticed the tire was being run backwards! It was driving me nuts

@ye1o881 Год назад

@@evanbarnes9984 i saw that too but thought "no, he made the thing, he knows best." Glad to see im not crazy.

@theboz1419 Год назад

Ok, I wasn't seeing things weird again. that's a relief.

@CorDawgYT Год назад

Also I've printed tires with TPU and they turn out amazing, something to think about.

@ronnetgrazer362 Год назад

Came here to bitch about the inserts. These are for injection modling, you want the "knurled" type. Having said that... GREAT introduction of yet another cool gearbox for makers!

@mrnlce7939 Год назад

Hate to be that guy but your tyre is on backwards. Currently the treads are pushing the muck and water in to the middle when it should be pushing it out to the side.

@benblank609 4 месяца назад

Thank you for being that guy.

@ChristoffleGrange 4 месяца назад

I came to comment this. It made me OCD go crazy.

@EALordBaal 4 месяца назад

Yeah lol it was bugging me also

@straba3976 4 месяца назад

Wouldn’t you have less grip and less movement/power efficiency ?

@mrnlce7939 4 месяца назад

You would have more grip. I don't know about efficiency as there would be more friction. also there would be a deeper trench as all the loose mud would be pushed to the side.@@straba3976

@avaviel Год назад

I watched your fusion 360 tutorial at 0:40 , I know nothing about cad, and now I'm working for an engineering firm making literal boat loads of money. Thanks Michael!

@OMGWTFBBQSHEEP Год назад

Please do dynamic load testing! Make a Ø100 mm drum instead of that wheel, and attach a string with some weights. Then you can have a program making it spool in and out repedetly. Would be really intersting to see how it holds up. Great vid btw!

@michaelrechtin Год назад

Will be doing something similar to this soon. Stay tuned!

@freman Год назад

test carried weight and towed weight.

@themadscientistkk Год назад

@@michaelrechtin Or maybe just a wide rake for inside the circle

@noahmiller794 Год назад

YES I was just going to comment thid

@adamthedog1 Год назад

@@michaelrechtin I'd also love to see the wear on the gearbox as a result of heavy radial load! maybe suspending the gearbox horizontally with a drum with weights in it or somethjng similar. as the drum rotates, the motor should always experience approx full overhung load. part of me wonders how much the rigidity of this gearbox (each shaft looks to be pretty sturdy) will negate the danger of a radial load or what

@soybeanfarmer4576 Год назад

Great video! As a farmer I noticed the tire/rim was mounted the wrong way. Tread design is for reverse direction. Productive video. 2 thumbs up.

@Nifty-Stuff Год назад

Wow! Great job on this gearbox video! I LOVE your combo of great info, design, video, and humor! PLEASE keep making awesome videos like this!!!

@luke2642 Год назад

This is awesome! Thanks so much for bringing a vast improvement to cycloidal reducers to everyone's attention!!!

@NimblyJimbly Год назад

Such a cool video! You can tell by the way it is. 😂 Love your style and sense of humor. Your engineering skills are insane. Loved the build. Would love to see this gearbox being put to a more strenuous (perhaps more practical?) use. Maybe a ham radio antenna rotator, or a winch, or a dual axis solar tracker for a solar panel array? This is the first video I’ve seen of yours and subscribed immediately upon finishing it. Can’t wait to see more content.

@TheRenaissanceBuilder Год назад

Fantastic setup and im sure very rewarding results. Nice work

@AshleyWragg Год назад

Wow awesome project! And thanks for sharing the files.

@davifoss Год назад

Your videos are great. Good camera work. Good editing and comentary. Good content. I'm enjoying it. Thanks

@mocmaniac1571 Год назад

I would love to see the same test under some load ! But man this is a really good starting point !!! I think having slow moving parts keeps them cold, especially pla/pla+ that melts at low temperature and thus limits wear. Plastics can last very long but as soon as the become hot they disintegrate really fast

@NigelTolley Год назад

I've heard tell that 3D printed plastic will melt.

@Varue Год назад

these kinds of videos are my favorite. I love the experimentation. would love to see more. cheers

@Twistedmetal-qe8kx Год назад

This is awesome, great work. Looking forward to how it performs with some heavier loads.

@ExcessiveOverkill Год назад

Sweet, cool to see how well everything held up. Those RV reducers are what are used in pretty much all large industrial robots. I suspect you could get crazy amounts of torque out of it before it breaks.

@colbyjohnson2344 Год назад

Very cool project. I want to make one of these for my motor. Thank you for sharing this build. Nice work!

@jeremyplatt Год назад

That was captivating - so good!! Thanks for sharing :)

@aniketdevadiga1095 Год назад

Great video man!!! Excited about future improvements... Some of my personal suggestions are to make it a bit more dirt proof as there was gunk that got inside the gear box. And second would be to try to add a shifter so that you can shift it between high torque and high speed settings. While hoping it could be achieved within the same form factor

@danon-theautisticmaker8112 Год назад

I'm re-watching this 4 the 2nd time after watching ur previous vids, & WOW what progression! I hope ur next test is connecting this design to that huge DC motor that u used in ur last for a torque test!

@haenselundgretel654 Год назад

Very good work and video! Noisch! Cheers!

@josephpk4878 4 месяца назад

That circle extrusion into a gearbox was priceless - it helped me to understand why my clients are always confused about how long it takes to model something.

@Argosh 6 дней назад

Gonna be using this on the RC lawn mower I'm building with my dad! Thanks dude!

@hatemymailbox Год назад

Looove your fusion design tips.

@ChillCat665 4 месяца назад

Those heat set inserts are awesome!

@kentaylor3003 Год назад

Nice work, really nicely presented to. Impresssive

@alttabby3633 Год назад

Best Fusion360 tutorial I've ever seen!

@dromeosaur1031 Год назад

Thank you for the video! A really nice gearbox.

@oldtimefarmboy617 Год назад

Just for your information, the tread design on that tire is suppose to be the reverse of how you have it rotating. Where the two lugs overlap in the center should be pointed in the direction of rotation. Sort of like an arrow that points where you are suppose to go. While not important for what you were doing with it, if it was on a vehicle pulling a load and the wheels started to slip for any reason, it would allow the soil to be pushed off to the side rather than generate enough pressure to damage or break the lugs off.

@Schradermusic Год назад

If you want less rolling resistance, you are right. But with the direction he chose, you get more traction.

@oldtimefarmboy617 Год назад

@@Schradermusic Actually, it has been proven to be just the opposite. If you are traveling, it does not matter what direction they are pointed, your rolling resistance will be the same. But go out to a farm and look at the tires on the equipment or to a construction site with rubber tired equipment and all of the equipment designed to pull implements that require maximum traction will always have the chevrons on the rubber tires with the point in the direction of travel when pulling a plow or a ripper through the soil and they need the greatest traction.

@woip890 Год назад

love your humor man, it gets me every time 🤣

@MrYrodz Год назад

i want more resource tests like this

@gianlucasini612 Год назад

Nice gear - couple of additional tests / improvement: 1. Add weight to the wheel. 2. Check where the dirt is entering: motor side. 3. Make it near waterproof on external: you can add a a plate to the external side and make it sealed, with an o-ring.

@anon_y_mousse Год назад

Neat, and I like the semi-subtle humor. I'd love to see a follow up where you test its torque as well.

@andrewgacree Год назад

Dude great job!!!!

@Antrim3d Год назад

As always, great job! . ... And greetings, from Southeast Ohio. 👍

@ilorenz08 Год назад

great job, great channel, keep it up !

@BeanzAndBrass Год назад

for a rather small channel you make amazing content

@criii4950 Год назад

Awesome content man

@Pillazo Год назад

This is awesome, thank you for sharing!

@aytunch Год назад

Great gearbox and video. We want to see how it holds in other tests.

@johnlocke9609 Год назад

hahaha! Looove the face, because is just fkn cold to go out haha! But science first so, kudos for your sacrifice! And thank you for uploading the files! Send you cyber hugs!

@johnkelly7264 Год назад

Absolutely worth watching without skipping. Looking forward to more of the same. Subbed here!

@anubis520 Год назад

cool video, someone told my about this. I am interested to see where you go with it in the future. Until then, I will watch some of your other videos

@patrickcoleman6287 Год назад

Very cool. That calculus looked crazy.

@ProlificInvention Год назад

I made a spinning plant platform in my back yard this last year and spun a special plant at 30 RPM for 7 months which was approximately 9 Million rotations. My platform was driven by an old 14.4 volt DeWalt drill hooked to a variable 0-48v power supply set at about 4 volts: direct driving a "Lazy Suzan" type platform with metal bearings, a scooter wheel with a solid shaft bolted in and chucked into the drill was my drive wheel that transferred power. It was a fun project and I was reminded of this by your video. Perhaps you could make spinning plant platforms, it's a fun experiment that is endlessly customizable and it turned out to have fantastic results and increased growth as well as pest resistance, and cold resistance when the time came.

@crnlbwlawson Год назад

Great design! Would love to see it load tested to failure.

@samcorder408 Год назад

Awesome man!

@fusionvibe Год назад

Ohio weather been crazy this winter. mid 50's in early January. great video. subscribed.

@scotticus66 Год назад

Ahh yes the fusion 360 cyclodal extrusion tool. Nice work instantly subscribed!

@7alfatech860 Год назад

Really nice. Keep up the good work

@The_Flying_Yeti Год назад

0:50 almost killed me! that's exactly how it feels explaining this stuff.

@eelcohoogendoorn8044 Год назад

Awesome build. Didnt think there were any gearbox topologies I wasnt aware of yet, but seeing a new one definitely earns a subscribe. I suppose one drawback compared to a central cam is that the bearing loads are less self balancing; if you want some low backlash and low preload you need to work those cam bearings with a static radial load. Perhaps a nice way to reduce the bearing requirements would be to put the herringbone sandwiched between the offset cams (or one-tooth gears). Then if you give both sides of the ring a bit of a taper, you can preload the whole system by adjusting the clamping force on both halves of the ring; and it should also be self-energizing; you can run it at a low zero-load preload setting for efficient low torque zero backlash operation, but the radial forces should increase in lockstep with the torque demand. All without bother any bearings with those radial forces!

@eelcohoogendoorn8044 Год назад

I guess thats another way of saying this is basically just a wolfram topology, but with a single-tooth planet gear on the output. But practically speaking its a configuration that comes together quite elegantly.

@TheParamotorGuy Год назад

That wheel is awesome. I would like to inform you that you are either traveling the wrong direction or the tire is backwards.

@boko3155 Год назад

You got me by using the neature video clip. Instant subscribe.

@Turalcar 4 месяца назад

0:45 Circle, smooth and inoffensive

@Clark-Mills Год назад

Great work, thank you!

@ivprojects8143 Год назад

Very nice gearbox!

@tubach1082 Год назад

I have never heard anyone else even reference neature walk before thank you for reminding me of it's existence

@NickNam3 Год назад

Awesome video!! 👏

@JamiePineappleWyatt Год назад

Add a trailing mass via a 3d printed buggy and some weights, step up the speed a smidge (preferably to a usable real world use speed), add stages for more reduction and lets find the maximum torque output before internal stress becomes visable! Great box, cant wait for the next one!

@sprovost69 Год назад

Being the son of a farmer, I noticed you were running the tractor wheel backward… This is why the threads are filling with mud. If you run it in the other direction it would self clean, keeping the traction.

@PhG1961 Год назад

Great work ! Maybe mount the motor and gear in a robot arm and perform heavy duty testing, like picking up some weights continuously.

@alexanderpalmisano3285 Год назад

Hey mate, awesome video I love the content. Just something you may have seen, that build up of snow and mud in the tyre is because that tyre tread can only go in one direction and in the video it's going backwards. All good keep it coming. 🎉

@garyrobinson3735 Год назад

Above all your efforts I only want to mention that you put the tire on backwards.. good video

@HappyMathDad Год назад

Awesome gearbox. Paul gold will probably be making one tomorrow. I don't understand why these designs are not more popular. I would just mention that the planetary gears don't really get as much stress as the cyclodial gears. That's why it's a good idea to cut them like you did. I also never really liked how the pins are pushed on a typical cyclodial. CONGRATS. Btw. Everybody wants to know the efficiency.

@michaelrechtin Год назад

Working on a test setup that should be able to measure dynamic torque and efficiency for any gearbox. Stay tuned!

@Dangineering Год назад

Never Heard of these, might look into them!

@Halabaloosa Год назад

Looks great, cheers!

@eulachonfish Год назад

Elegant gearbox, and already lasting about as long as some of the irrigation pivot gearboxes I've seen.

@Totalis1989 Год назад

This is amazing, love the presentation style and design. I reckon the gear ratio for the cycloidal part (at least the one you uploaded) is 1:21, not 1:20. (Specifically, the planet gear turns 21 times for 1 rotation of the output housing. Great design, I am absolutely stealing (with credit, ofc)

@JohnLauerGplus Год назад

Nice work. Yeah, I'd love to see this hooked up to a BLDC. You can use SimpleFOC to drive the BLDC. I'd like to see some load tests on it too. I also keep wondering if you get faster/slower fits and starts as it moves along those cams? It seems like I see a bit of fits and starts in the video rather than truly smooth rotation. It may not matter for the application, but a robot arm may have issues with that. If it's just used for wheels on a rover then probably fine.

@ibumelectronics Год назад

Love your videos bro❤

@seabeepirate Год назад

Pretty neat. For testing you could add a weight sled with a load cell to the boom of the testing rig. That would give you easily logged loads to create your data set.

@Jayang5540 Год назад

Simply fantastic

@Kajukota Год назад

That's pretty neat!

@kinzokushirogane1594 Год назад

I definitively want to see more testing, preferably much strenuous tests.

@wyattg2186 Год назад

Some combination testing where you can independently test torque, heat and fatigue would be interesting. 3D printed parts tend to fall apart fast under those conditions, but with independent and combination tests the best materials could be determined for each part of the gearbox.

@Matthew-lh3zy Год назад

That "subscribe" printed onto the pivot *chef's kiss*

@natet.8867 Год назад

I really love this failure analysis kinda thing. Maybe you could add some load to the test set up, or maybe make a gear box without ball bearings?

@paulmcewen7384 Год назад

Pretty damn cool man. a 6x6 rc rover with these would be super cool.

@AmbiguousAdventurer Год назад

Your tire tread is pointing in the wrong direction. Nice video very fun to watch thanks! =D

@teagueshepard1726 Год назад

The Neature Walks reference made me so happy

@Mellowdark17 Год назад

This is super cool

@herzogsbuick 11 месяцев назад

Oh you bet that was an easy subscribe, well done.

@erik7957 4 месяца назад

Brilliant idea, Michael, if you got it from yourself. You should know that this concept was introduced some years ago by Nabtesco (Japan) and today is the standard drive wheel reducer for Komatsu excavators.

@FilmFactry Год назад

You got my subscription at 0:57 seconds into the video:-)

@IndraKurniawan-vk2qb Год назад

Nice one, you deserve moar sub

@myetis1990 Год назад

great job!

@Falcon23K Год назад

You know that you live in the countryside when it triggers you that the tractor wheel is going in the wrong direction. Nice video

@Caseman91291 Год назад

This is awesome! Your tires tread should be the other direction though.

@atomsoldier5259 Год назад

This is dope!

@Kholaslittlespot1 Год назад

You're a badass. Keep it up.

@reinierwelgemoed8171 Год назад

Awesome prohect man. One the threads inserts I believe its been proven that printing the threads is still superior to the inserts. Would be interesting if You added some weight out on the wheel in like 500g increments to see how far it would go.

@ozindfw Год назад

Very cool project. It will be interesting to see how teh FDM parts perform under load. If you do load testing with that tire it needs to rotate in the other direction. The V groove will be less inclined to fill with mud.

@VipersHeart 9 месяцев назад

Best sound ever at 5:55

@Bianchi77 Год назад

Nice video, thanks :)

@bender9205 Год назад

I'd love to see a rover build with this like rctestflight did. Great work!

@accordv6er Год назад

DRILL/Impact gearbox!!!! Impacts and drills have some crazy reductions that get abused- so many good tool channels out there, a few that take them apart. Your design looks like it was made for it. The possibility of turning a larger outer "ring" for the drive instead of being limited by the shaft that has to spin inside is a HUGE deal. Especially for an impact where the rotating mass and it's moment of inertia is what results in crazy power. In the case of small drives like ratchets/electric wrenches, it could be used to move the ratchet mechanism away from the head itself. (Would still need to solve turning the drive axis 90deg) And finally -- offroad trucks/equipment especially. I'm curious how it handles changes in direction/ acceleration/load because the control involved in that reduction would be amazing. Additionally- if it can handle high input speeds, a CVT as a first stage might make for an incredible heavy equipment/semi gearbox