Nice, Nice, Nice... I second the comments: "Should have more views" and "Share... Please" This design is awesome, as it is mostly constructed from "flat stock", so could easily be replicated on CNC using aluminum or Delrin! Would love to see the files/design process! Very good job Sir!
I worked in can mfg for 29 years. The Carnation 101 bodymaker used epicycloidal drive for feed bars and hypocycloidal drive for the forming wings. Great presentation!
i love the double gear principle plus the included bearing design as simple as it deserves it's praise! how did it hold in time and with use? can you please upload a new video of that gear after it's worn out?
Hi! Cool drive thanks for sharing. Not sure if you are interested but "MKS SERVO57B" stepper drivers have magnetic encoder, come with magnet to attach to motor axis, and cost $17 a pop. Board is cheaper fork of Mechaduino.
I have a question; what happens to the reduction ratio when you add a second cycloid? I've found how to calculate the reduction ratio when the drive has a single cycloid but haven't been able to find anything saying what, if anything, happens when you do the 2 disc design like you in your video.
Hi Myron. Nice implementation, very smooth output. I made a cycloidal gearbox too, but the speed on the output wasn't constant. It was going fast and slow every few degrees. I though it was tolerances but then I didn't have any backlash and the motor was ok. I am wondering if you encounter something like that? How did you generate the cycloidal profile?
I have not encountered that issue. I have encountered a situation where it would randomly stop spinning and get stuck. I do believe it is due to the tolerances or maybe the edges of contact are too rough. As for the gear profile, I found an equation from a comment from Levi Jansson's "How to Design a Cycloidal Disk in Fusion 360" video on RUclips: x(t) = (bR + sR)*cos(t) - sR*cos((sR + bR)*(t/sR)) y(t) = (bR + sR)*sin(t) - sR*sin((sR + bR)*(t/sR)) z(t) = 0 where: bR = radius of larger circle on which the smaller spins sR = radius of smaller circle (pin radius) t = 0 to 2*PI Some other sources: (1) www.tec-science.com/mechanical-power-transmission/cycloidal-drive-speed-reducer-gear/construction-of-the-cycloidal-disc/ (2) www.otvinta.com/cycloid.html
Hi i am.trying to make a self winding clock charge cellphones very needed I have most of it. Would you please help me with the finishing part Its very little Please help me
Very well done, it will keep on working, most of those drives work different, you simplified the design! I will make this with 2 stages, to have 1:300. Who wants to make it : github.com/dsuarezv/GearSolver and go on in Fusion 360
@@oljobo Many people make this assumption, but the term BB actually comes from the nomenclature of the size of lead shots used in a smoothbore shotgun loads - three of the sizes are B, BB and BBB. Early air guns adopted the BB size as a single spherical projectile, which has a diameter of 0.17 inch (4.5mm) and people commonly called the projectiles BBs and the the guns BB guns.
The gearbox does seem to be somewhat backdrivable. I am not able to backdrive it using the torque from my hand alone. However, with a level attacked onto the gearbox, it is somewhat backdrivable.
Very well designed and constructed. Deserves far more views!
Very cool, the bearings at the top were a nice touch!
Nice, Nice, Nice... I second the comments: "Should have more views" and "Share... Please"
This design is awesome, as it is mostly constructed from "flat stock", so could easily be replicated on CNC using aluminum or Delrin!
Would love to see the files/design process!
Very good job Sir!
I worked in can mfg for 29 years. The Carnation 101 bodymaker used epicycloidal drive for feed bars and hypocycloidal drive for the forming wings. Great presentation!
Nice video with no stupid music. Love it!
Brill idea with the ball bearings. It looks super solid, Really good job
Thanks for posting. Looks like a straightforward design and print. I hope you will upload the files to Thingiverse and become famous.
Beatifully designed and constracted :)
Well done. Good design choices.
Very nice build 😊
i love the double gear principle plus the included bearing design as simple as it deserves it's praise! how did it hold in time and with use? can you please upload a new video of that gear after it's worn out?
Very good and acurate job !
Hi Myron!
Can you please share the STL files. Thanks in advance.
kinda rude honestly...
@@o_o-fk7ym How is that rude? He politely asked, even said please.
@@o_o-fk7ym Sharing is caring man!
Kudos for the 3D-printed ball bearing.
That was as neat as it gets.
Nice job, thanks for sharing!
Hi! Cool drive thanks for sharing. Not sure if you are interested but "MKS SERVO57B" stepper drivers have magnetic encoder, come with magnet to attach to motor axis, and cost $17 a pop. Board is cheaper fork of Mechaduino.
I have a question; what happens to the reduction ratio when you add a second cycloid? I've found how to calculate the reduction ratio when the drive has a single cycloid but haven't been able to find anything saying what, if anything, happens when you do the 2 disc design like you in your video.
Love the design.
Hi Myron. Nice implementation, very smooth output. I made a cycloidal gearbox too, but the speed on the output wasn't constant. It was going fast and slow every few degrees. I though it was tolerances but then I didn't have any backlash and the motor was ok. I am wondering if you encounter something like that? How did you generate the cycloidal profile?
I have not encountered that issue. I have encountered a situation where it would randomly stop spinning and get stuck. I do believe it is due to the tolerances or maybe the edges of contact are too rough.
As for the gear profile, I found an equation from a comment from Levi Jansson's "How to Design a Cycloidal Disk in Fusion 360" video on RUclips:
x(t) = (bR + sR)*cos(t) - sR*cos((sR + bR)*(t/sR))
y(t) = (bR + sR)*sin(t) - sR*sin((sR + bR)*(t/sR))
z(t) = 0
where:
bR = radius of larger circle on which the smaller spins
sR = radius of smaller circle (pin radius)
t = 0 to 2*PI
Some other sources:
(1) www.tec-science.com/mechanical-power-transmission/cycloidal-drive-speed-reducer-gear/construction-of-the-cycloidal-disc/
(2) www.otvinta.com/cycloid.html
Impressive design! Thanks
nice design ;)
go to auto store, buy battery grease. that is silicone grease. do not use petroleum based grease [vaseline] for plastics.
Impressive.
Great design. Does it provide a rotation with constant speed?
Do you have it's fea analysis for testing
Hi Myron. I liked your implementation. Tell me can I make a similar gearbox for a 12 V DC motor?
For my college project
Instead of using petroleum jelly it is better you put silicon grease or high density oil
the guy is using airsoft bbs as bearings, there isnt much we can do to help him it seems
@@bmxscape Nonsense. The bbs are more than strong enough for a plastic gear.
@@propheteyebert7063they aren't designed to be as smooth as a bearing surface should
@@bmxscape Its also on 3d printed plastic, which is far far rougher, I don't think the slight roughness of the balls matters at that point.
@@__-fm5qv and so you think the type of lubricant is going to matter why?
Hi i am.trying to make a self winding clock charge cellphones very needed
I have most of it.
Would you please help me with the finishing part
Its very little
Please help me
can i have those drawings to try on a homemade cnc 4 axis ??? Ty
She sounds good. Did you measure backlash?
Not properly, but it will not rotate from the torque produced by my hand alone.
What is the play angle of the output element?
congrats!
Very well done, it will keep on working, most of those drives work different, you simplified the design! I will make this with 2 stages, to have 1:300.
Who wants to make it : github.com/dsuarezv/GearSolver and go on in Fusion 360
Supergood
What printer do you use? Looking for a better one
Nice
Is it just me or the output rotation seemed intermittent?
great work. how much torque can you get from it?
I have not tested the torque yet. However, the gear reduction is 30:1.
Myron Ho does that mean the torque is 30x higher than without gear? (or is it not that simple to convert?)
@@serialdad33 As far as I understand it yes, minus some losses due to friction in the system.
At last I'm seeing someone use BBs to make a ball bearing 👍 👍
B B - Ball Bearing
@@oljobo Many people make this assumption, but the term BB actually comes from the nomenclature of the size of lead shots used in a smoothbore shotgun loads - three of the sizes are B, BB and BBB.
Early air guns adopted the BB size as a single spherical projectile, which has a diameter of 0.17 inch (4.5mm) and people commonly called the projectiles BBs and the the guns BB guns.
@@oljobo en.wikipedia.org/wiki/Shot_(pellet)
@@oljobo en.wikipedia.org/wiki/BB_gun
Bravo!
awesome
This is scifi tech right here.
Is there any backlash in your design?
Is it backdrivable?
The gearbox does seem to be somewhat backdrivable. I am not able to backdrive it using the torque from my hand alone. However, with a level attacked onto the gearbox, it is somewhat backdrivable.
Can I buy it?
Confucius once say "never double dip the vaseline"
Agood design but for what it used mostly. Thanks if some body can explain their work
Can you please share the files ?
Супер!
but why
bearings are not expensive... bb's are expensive and weak... makes no sense to use them as bearings
gear ratio?
The gear ratio is 30:1
Hi boys
Самый наркоманский редуктор, который я видел)
Шо це за фігня
Could you please share the files?
For my college project
Please🙏