Cycloidal Drives Made Easy: Design, Build, and Test with Fusion 360

This video covers the concept, design, and build of 3D printed cycloidal drives, and why they're the best gearbox actuator.
If you have any questions feel free to ask in the comments.

Animations were used that are owned by - @HowToMechatronics - I do not own the rights to these animations.

Cycloidal Drive API:

SolidWorks Cycloidal Drive (Omar Younis):

My GitHub:

Parts List:
- NEMA23 Stepper Motor
- TB6600 Driver
- PLA+ Filament
- Nylon Spacers
- Ball Bearings
- M3 Screws

00:00 - Intro to Cycloidal Drives
00:38 - Understanding Cycloidal Drives
01:45 - Inside a Cycloidal Drive
03:00 - idk
03:59 - Understanding Eccentricity
05:08 - Designing Cycloidal Drives
06:36 - Designing in Fusion360
07:41 - Implementation of Bearings (Budget)
08:51 - Building my Cycloidal Gearbox
10:37 - Testing my Cycloidal Gearbox

Music:
New Life - Noire

[MitchStahara]

Keep making content, this was really well done and helped me understand cycloidal gearboxes better, just subscribed!

[FOSS-For-All]

i was surprised when i saw that you have less than 100 subs while watching the video, this is some 1-mill+ production quality

[itsyourboimax]

Keep cracking bro, very well made content. Only a matter of time before you grow

[Berkana]

There is another variant of the planetary gear set that I rarely hear about: the compound planetary gear set.

A compound set uses a small sun gear to drive very large planet gears, but the planet gears are rigidly co-axial with really small planetary gears that then turn inside a ring gear. This compound planetary gear system enables extreme gear reduction ratios using a planetary gear set, and doesn't have any additional moving parts compared to a traditional planetary gear set.

This should be tested as well.

[swannschilling]

Great design!! Keep up the good work!! Great content!! 😊

[TomWilbourn]

thats crazy that someone with 83 subscribers has helped me so much more than any other channel or video ive seen. Thank you so much! keep up the good work!!

[PaulGouldRobotics]

Nice design. Did you measure the torque of just the stepper motor? Your efficiency should be closer to 75%.

[Rudmin]

eccentricity mainly drives the shape of the pressure angle vs rotation angle plot

[leogray]

Would say this is a very good summerize for me as what tricks and pitfalls are in making it.

[louisgundelwein]

44 abos, that cant be real, great video !

[robertocuesta]

I was designing a cheap cycloidal drive as well, very similar to yours just slightly smaller with very few bearings and no low friction materials, your efficiency numbers are very similar to mine (around 27%), I think that's about the limit of capability for a design that minimizes bearings and is mostly made out of 3d printed parts so I think the design is good, it's just reaching the limit of the materials and techniques used, I am yet to try lubricating the cycloid, but I don't expect it to be a huge improvement.

[hmwoodzy]

Really cool dude, nice video and fun project

[UnderLoaded]

How do you have such little subscribers for the high quality content you produce? Its really good its educational and funny! ^^

[zdog]

I wonder how small you can make it, and then I wonder how well that would work in a 3d printer extruder with that high gear ratio! Has a lot of new designs are using planetary and other designs to generate high gear ratios to allow the stepper motors to turn at their optimal speed

[gsestream]

the only issue its off-axis, not centered, try tesla turbine air friction gears instead. can be made in on axle, but also just like normal gears.

[michazarzycki]

I feel your pain, ive deisgned many 3d printed cycloidal gearboxes and the efficiency is just terrible. Im currently working on making my own almost fully metal cycloidal drive and im expecting some huge imprivemnt, maybe gonna make some video about the difference, but first i got to learn how to use lathe properly... have fun on your future projects.

[goshaman]

Exactly what I was looking for, thank you (Also i saw that 4k hentai directory lmao)

[ferriswhitehouse]

Love this video and your whole style. I think you might be able to get much closer to your 40Nm target if you use some kind of code to smooth out the stepper acceleration. Maybe because its trying to lurch too much the motor driver current tops out or some shit? Maybe you've already done that and its just the way she goes with too much friction in the gear box though.