design a cycloidal gear step by step

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This video shows how to design a cycloidal gear with a normal CAD system

[@TecnoDesarrollos]

Salwald, thanks a lot. I worked more than a year developing cycloid, hypotrocoid and epitrocoid plot functions to make reducers but the basic math in your video and explanation helped me to build my first succesful working modeled reducer in solid works. I hope to build it soon. Thanks again...

[@chuongnguyen4980]

The equation is simply as: x(t) = (r1+r2)cos(t) + e*cos(t*N) y(t) = (r1+r2)sin(t) + e*sin(t*N) where 0=

[@spourabbas]

Yes. Very nice. To get the final gear it is needed to offset the cycloidal 5 mm (pin radius) inside and shift the offseted cycloid -2 (equal to e) to the left.

[@user-tk3wh1ud4r]

It was the easiest video to understand how to design a cycloidal gear. Thank you.

[@mikestanzel1192]

the small points being rotated 18 degrees is incorrect because the pin needs to rotate an additional 40 degrees to make the point perpendicular to the r1 circle. 400 degrees of rotation (360 + 40) divided by 40 degrees (360/9) = 10 degrees of rotation on the small pin per 1 degree of rotation around the large circle. See cnc mill comments.

[@鹿大]

You are right!

[@АлексейЮрич-е5с]

Лучшее видео! Всё расписано и объяснено. Эти расчёты отлично ложатся в параметрическое уравнение.

[@Pradjaya]

Sir, in your formula, r2= r/10... This 10.. is it the diameter of the pin or the Number of pins. Sorry for asking this.. but both are 10mm . Thanks.

[@SimonVovko]

I'm also trying to figure that out. I tried 10 to be number of pins, but it did't work for me. But I'm trying to make 1:60 reduction. So, 61 pins.

[@SimonVovko]

I figured It out. 10 is the diameter.

[@Pradjaya]

@@SimonVovko thank you sir

[@SaHaRaSquad]

@@SimonVovko No, it's the number of pins, it is calculated from the equations shown in 1:20. r1 = 9 * r2, r1 = r - r2. That means 9 * r2 = r - r2, so (9+1) * r2 = r.

[@PalmaAndrea]

Hi, great job, i use nx (cad sofware) but i don't find the equation to do the profile , you have possibility to share this formula? Thanks in advance

[@TheRainHarvester]

Do you think using a skate bearing (8mm id, 22 od) would work? I have a lot of those.

[@earielflare2203]

Огромное спасибо за методику построения! В автокаде построил - все получилось!

[@Feinwerk-uhrentechnik]

Thanks and good luck

[@sheikeditzz3.091]

What are the standard dimensions for the cycloidal gears

[@rssteslaful]

Thanks a lot, do you have the method to calculate the discs and output pins?, I already have this part and I would like to build it.

[@johnnienathan2808]

Exactly what I needed. Thanks Salwald

[@Feinwerk-uhrentechnik]

You are welcome 😊👍

[@cnc_mill]

hallo, danke für die anleitung. ich habe es nun 3 mal versucht doch ich habe immer eine lücke beim splin wenn ich ihn um den körper rotiere. könnt ihr mir vieleicht sagen was ich hier falsch mache? danke im voraus

[@danielreinke5470]

Das liegt an dem Falschen Winkel für den kleinen Punkt im 8mm Kreis, anstatt 18° musst du 20° nehmen. Weil du zunächst bei 0° anfängst und bei 40° bei dem großen punkt raus kommt musst du auf den 360° für das abrollen des Kreises die 40°dazu addieren, sodass der Endpunkt des Spline wieder rechtwinklig zum kreis bist.

[@mikestanzel1192]

@@danielreinke5470 I agree! The pin needs to roll an additional 40 degrees to make the small point line up perpendicular to the line between the center of the r1 circle.

[@SimonKalouche]

Can you make a similar video for how to design the newly invented Abacus drive (pure rolling cycloid)?

[@vuongbui5829]

Thanks Salwald ! You can explain more carefully 1:50 to 2:25

[@eugenedukatta9355]

Why not used ordinary gear wheels (green is wheel with inner teeth, orange is wheel with outer teeth)?

[@dooby1445]

Cycloidal gearing generally allows higher gear ratios in a more compact space, with longer life and minimal backlash

[@bitsurfer0101]

What kind of gear reductions are possible with this type of design?

[@ProDigit80]

+RocketRich Seems like with this one only 1. But I presume you can get 8 wobbles rotating under 9 pins as well. In this manner, the gear ratios could almost be infinite, 9:10 gives a 1:9 ratio. 8:9 should give a 1:8 ratio. 7:8 a 1:7 ratio. You probably can go down to 3:4, but it won't run very smooth. It will probably work better with larger sized, more tooth.

[@derskyflo]

39:40 gives a 1:39 Ratio?

[@Deeraise]

The wiki article [ en.wikipedia.org/wiki/Cycloidal_drive ] on this style of gear reducer states the following: "Single stage reductions are available commercially up to 119:1 and double stage up to 7,569:1"

[@rajunagvenkar4819]

Very nice presentation. Thank you

[@JHassan35]

Hi Salwald, first; Congratulations and thank you very much. your video is the best second: two questions for you; Do you have the formulas to design this device? Can you send me...well. Can you send us the material or give us instructions to buy it? Greetings

[@Abhimanyusingh-oy3hk]

check wiki for Hypocycloid curve for the formulae. Its mentioned there.

[@jeric_synergy8581]

There used to be a video by an Indian gentleman (college instructor?) that demo'd the theory of cycloidal drives starting with a linear, vernier series of wedges, similar to how a caliper works. Anyone know of these videos? They seem to be gone.

[@mikestanzel1192]

kzbin.info/www/bejne/aKTLkqN-dsahf7c

[@Molb0rg]

that was useful, music is irritating lol, but the content is superb

[@Abhimanyusingh-oy3hk]

Nice video. Great for explanation. Please can you do a video on Abacus drive

[@maheshpatel2005]

Nice work

[@rodstartube]

wow you are a great composer, how do you call that muzik?

[@AbhishekKumar50]

your mom gay

[@KianGurney]

The song is Eine Kleine Nachtmusik by Wolfgang Amadeus Mozart.

[@jamesmatheson5813]

What i don't understand is why you don't use a pinion from the eccentric and make the pinion turn once using the.cyclodial to make a 1 to 1 ratio increase torque kzbin.info/www/bejne/b52cgoCwa5x9ZsU You put the pinion where the cyclodial moves one tooth and make the pinion turn once making the pinion have more torque Why wouldn't you do that

[@SaHaRaSquad]

Because it actually wouldn't have more torque than the standard cycloidal drive, is more complicated to design and patented. Duh.

[@parjapatramesh4]

great Work..

[@rebelff2257]

Diagram bhari nahi

[@陳瑞昆]

Good

[@rebelff2257]

😁😁

[@The_GreenMachine]

music ruined the video, why even put it in?

[@hexagonal7708]

then just mute the video, why even comment that?

[@The_GreenMachine]

@@hexagonal7708 both constructive criticism on music choice and that most people would voice over rather than make everyone read a ton of text

[@fkgmail]

how to decide the value of e?