What makes cycloidal gearboxes so amazing?

Ғылым және технология

I discovered something really interesting about cycloidal gear drives that I did not expect! In this video, I use a 3D printed gearbox to demonstrate just a few of the reasons why cycloidal gearboxes are so useful.
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My name is Steven, thanks for watching, and happy printing!
#3dprinted #gearbox #cycloidalgears #ender3pro #gearratio

Пікірлер: 61

  • @smellycat249
    @smellycat24910 ай бұрын

    A cycloidal gear drive CAN be back driven. Yours was just not smooth enough to allow for the motion.

  • @GregorShapiro

    @GregorShapiro

    10 ай бұрын

    If the tolerances are fine enough and the surfaces of the right shape and surface fineness a cycloidal drive can be back driven. The (usually) high reduction of cycloidal gearsets makes for a high loss of torque and thus difficulty in back driving them. The fact that all *teeth* are in rolling contact with their counterparts means that a MUCH larger torque can be transmitted and the risk of shearing off a tooth on a pinion or bull gear disappears.

  • @kindaovermyhead

    @kindaovermyhead

    10 ай бұрын

    He also was not going to get enough torque by hand with that small shaft

  • @isaacnichols12

    @isaacnichols12

    3 ай бұрын

    Great content

  • @Engineezy
    @Engineezy10 ай бұрын

    Awesome video! Excited to see it connected to a drill 🙌

  • @XInfinity2024
    @XInfinity202410 ай бұрын

    Good video. You should combine this print with the World's biggest gear ratio... video and tweak it and see if you can spin it and how many gears it will work with

  • @BenSmith0
    @BenSmith03 ай бұрын

    Cycloidal drives CAN be back-driven, as long as you don't weld the output shaft in place.

  • @brettfafata3017
    @brettfafata301710 ай бұрын

    Have you shared these files anywhere? I would love to print one myself!

  • @christianbureau6732
    @christianbureau67326 ай бұрын

    Thanks

  • @LovesM855A1
    @LovesM855A110 ай бұрын

    A oil control gear for a mustang looks very similar minus the strap on top etc… Coyooooooooooote baby!!

  • @ShawnColeman01
    @ShawnColeman0110 ай бұрын

    Using this with steel encased with oil at higher RPM: Handheld? Vibration monster with some heavy waddle with the rpm ramp-up. Fixed machine - Very nice aside from that it's a Friction monster regarding sliding-friction (where it sort of slides at the apexes pointing inward from the orange gear), if it's smooth it will work nice, but the sliding-friction will create a lot of heat. Dirt & Grime: since the apexes of the blue gear seems to "press" into the wells of the orange gear, dirt and grime could cause incremental damage which would seize the system very shortly after first detection of any irregularity. Using pristine and pure material and-of utmost exquisite part-precision and lubrication you can have a very small high torque gearbox that WILL in fact last a very long time. Yet still, after the first detection of any irregularity, you will have a failing system in no time. It's very delicate, but still if you want very nice things you need to be prepared to lose them easily. This also seems ridiculously easy to replace, lots of replacements won't be a hassle in most machines and devices, the cost for this even with the best of everything you can get will still cost significantly less if you desire keeping spares and have the will to replace them when needed so.

  • @ralphmueller3725
    @ralphmueller37256 ай бұрын

    I wonder if a cycloidal engine would be possible? think like a rotary but using the action of the cycloidal interface as the engine rotor.

  • @recepkaraman6327
    @recepkaraman63275 ай бұрын

    Hello, did you share the cad files of the cycloid reducer in the video anywhere?

  • @HoodyKid100
    @HoodyKid10010 ай бұрын

    Strain wave next

  • @antoniodomit2782
    @antoniodomit27822 ай бұрын

    Is there a way to have your files to 3d print the drive? or can I buy one from you?. Thank you Antonio Domit

  • @eduardoschroeder8502
    @eduardoschroeder850210 ай бұрын

    I have a doubt, on my project i was using planetary gears to make a reduction of 64:1, but the high RPM and friction kept destroying the teeth. Would a cycloidal gearbox be a good option? Nice video btw

  • @3DPrinterAcademy

    @3DPrinterAcademy

    10 ай бұрын

    potentially. the load is distributed

  • @rollin3480

    @rollin3480

    10 ай бұрын

    Lubricant it 🤣

  • @marcosmark3007
    @marcosmark30077 ай бұрын

    tanks, i send my LIKE!!!, maybe can share the stl?, thanks

  • @TheMoody876
    @TheMoody87610 ай бұрын

    Looks like the inside to a ls engine oil pump

  • @SilentShiba
    @SilentShiba10 ай бұрын

    How do 3D printed Cycloidal gearboxes hold up to wear versus planetary? I want to start getting into designs involving motors and rotation, but I want to stick to one dominant gearbox strategy to start, I I prioritize ease of printing and reliability.

  • @conorstewart2214

    @conorstewart2214

    10 ай бұрын

    What ever you go for using some form of lubrication is always a good idea. I started with jus a compound spur gear, gear train and it worked well enough, especially with nylon and lithium grease. Then I tried a planetary gearbox and it worked well too, albeit being more difficult to assemble (part of that was just my design). I haven’t tried cycloidal yet, but I plan on doing it. You should just experiment and try a few, just small scale ones with small motors and see which ones work best for you, with all the gear generators you can get now it really isn’t that difficult to design them. You should also experiment with different gear profiles like helical or herringbone. Also when printing gears do it on rafts, any elephants foot could cause the gears to mesh incorrectly and may lead to excess friction or the gearbox just not working. I prefer printing gears with a 0.25 mm nozzle but 0.4 mm does work too, you just won’t be able to make gears quite as small.

  • @SilentShiba

    @SilentShiba

    10 ай бұрын

    @@conorstewart2214 Excellent advice, thanks for typing that out for me

  • @MrArtimus1961
    @MrArtimus196110 ай бұрын

    Very simular to how an oil pump works in a vehicle.

  • @AlexDaDermahurr

    @AlexDaDermahurr

    10 ай бұрын

    Its also close In function to a rotary engine

  • @GregorShapiro

    @GregorShapiro

    10 ай бұрын

    Not at all. This is rotational speed reduction. Not fluid pumping. (though the internals do have some visual similarities).

  • @peterg902
    @peterg90229 күн бұрын

    Any fusion downloadable files so kids can play with it?

  • @peternickerson2911
    @peternickerson291110 ай бұрын

    I think this is very cool, however, there a very many drawbacks to cycloidal gearboxes with the biggest being manufacturing as well as vibrations. Do to all the rubbing that occurs they easily generate rough vibrations which is unacceptable in profession machinery. When it comes to manufacturing the process to mass produce gearboxes. A standard gear is very easy to manufacture, however a cycloidal gear requires a milling machine. This is okay for special cases but their is a reason why you rarely see cycloidal gear drives mass produced. (Also cycloidal gearboxes can be back driven)

  • @conorstewart2214

    @conorstewart2214

    10 ай бұрын

    I think you mean precision machinery, not professional machinery. Standard spur gears often require milling to create them as well, especially if they need to be precise.

  • @wowgggearing
    @wowgggearing10 ай бұрын

    friction between blue gear & white shaft??

  • @conorstewart2214

    @conorstewart2214

    10 ай бұрын

    There will be some. If the tolerance isn’t too tight then it won’t be an issue. Often people put a bearing in there and between the yellow piece and blue piece to help reduce friction. When you make any gearbox to actually use you should lubricate it and with 3D printing the gearbox will probably need to be “broken in”, just run it until it gets smoother.

  • @McRootbeer
    @McRootbeer10 ай бұрын

    It would be cool to see a backdriveable/reversible cycloidal gearbox. And am I crazy or does this look like it could be turned into an electric motor?

  • @peternickerson2911

    @peternickerson2911

    10 ай бұрын

    your crazy. This is a gear box, not an alternator or generator.

  • @MyHandleIsGood

    @MyHandleIsGood

    10 ай бұрын

    Could be attached to a motor in a fairly compact package, especially for the reduction. However, this is not, and never will be, a motor.

  • @GregorShapiro

    @GregorShapiro

    10 ай бұрын

    A well made cycloidal gear IS back drivable. kzread.info/dash/bejne/oqJrutyJlqa6qKQ.html

  • @king_james_official

    @king_james_official

    10 ай бұрын

    wdym turned into a motor lol

  • @Xubor
    @Xubor7 ай бұрын

    I think why people rather use planetary gears is because they don't create an unbalance.

  • @DoIGetTube
    @DoIGetTube10 ай бұрын

    Wondering whether the German engineer Herr Doktor Felix Wankel drew upon that principle to design his now legendary rotary internal combustion engine cannot be helped.

  • @DoIGetTube

    @DoIGetTube

    10 ай бұрын

    Nippon's Mazda Motors had employed the said engine in its RX series of motor cars for decades, and as of this response's time stamp date, it most likely still did.

  • @frenchperformer5401
    @frenchperformer540110 ай бұрын

    G R E A S E

  • @olegallito5742
    @olegallito574210 ай бұрын

    >it can't be back driven Nah, it's just the 1:8 ratio, pal. Add a handle, lube the thing up and try just a bit harder.

  • @thomasthemtman
    @thomasthemtman10 ай бұрын

    Seems like a ton of friction though 🤔

  • @designsforge4153

    @designsforge4153

    3 ай бұрын

    Isn't that where the torque comes from?

  • @-rakie-
    @-rakie-10 ай бұрын

    Gears

  • @jackb3822

    @jackb3822

    10 ай бұрын

    Yes

  • @markbailey5393

    @markbailey5393

    10 ай бұрын

    Yes

  • @lawrencedoliveiro9104
    @lawrencedoliveiro910410 ай бұрын

    To those who can’t afford Fusion 360

  • @lawrencedoliveiro9104

    @lawrencedoliveiro9104

    10 ай бұрын

    (and it is pretty pricey):

  • @lawrencedoliveiro9104

    @lawrencedoliveiro9104

    10 ай бұрын

    look at Fr

  • @lawrencedoliveiro9104

    @lawrencedoliveiro9104

    10 ай бұрын

    eeCAD.

  • @fasthelpru
    @fasthelpru10 ай бұрын

    Если он сделал ручку чтобы вращать, зачем вращал рукой? Бесит.

  • @NikolajLepka
    @NikolajLepkaАй бұрын

    SO much friction in this design

  • @mee6helpcenter909
    @mee6helpcenter90910 ай бұрын

    Bean

  • @leancrafter

    @leancrafter

    10 ай бұрын

    Bean

  • @peternickerson2911

    @peternickerson2911

    10 ай бұрын

    Bean

  • @JohnJaggerJack
    @JohnJaggerJack10 ай бұрын

    The fact that thing is over complicated and frail, when one could achieve the same result with a much more simple geneva mechanism....

  • @TundeEszlari
    @TundeEszlari10 ай бұрын

    I love your contents, can I get a comment heart?

  • @soyunknown569

    @soyunknown569

    10 ай бұрын

    No

  • @peternickerson2911

    @peternickerson2911

    10 ай бұрын

    I gave you a dislike instead

  • @recepkaraman6327
    @recepkaraman63275 ай бұрын

    Hello, did you share the cad files of the cycloid reducer in the video anywhere?

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