Відео

this would've been a great example for my machine design course

Hi dude. Nice job. I like it. Which pc program do you use?

Mechanical engineers are insane

Creators continue to misuse the word genius.

This may be the smartest comment section I've ever seen on UA-cam. Congrats! Give yourselves a hand. 👏

Brilliant!!!, the only drawback to this would be the cost since magnets are quite expensive.

Wow, another science fair project that pretends to be scalable! Why not using electromagnets, so you can actually control the magnetic field intensity? I mean, if you are going to post this kind of stuff with 3D printed parts that are unbalanced connected to a motor that peaked at 0.068HP (the 50W at the beginning, even though you overvolted that DC motor to get there) , you might as well overcomplicate it further an make it even less viable. I wonder how well this experiment will do on a 1HP (735W) motor and the cost to even make that.

Vibrating nutation🤔

Overcoming rolling resistance isn't the same as lifting the cars weight.

Amazing 😮

I could kill that in an environmental test chamber.

awesome video thank you

Looks like a neat variant of the harmonic drive that doesn't involve deformation

Now we need a competition with 3D Printing Academy

Am i following correctly thinking this would work well as a transmission on a turbine engine for a car

Can you make a sim racing wheel out of this 😅, i suspect there will be slop in direction changes though?

What about dust and mud?

6:19 Why is the motion of the output (sun gear) so jerky when shown in slowmo? The input (ring gear) is receiving perfectly rotational energy with no jerky motions, so something within the gearbox is introducing a jerky motion inbetween the input and output gears. I think I have a theory as to why this is happening, at 5:03 you explained that the number of pole pairs in the planetary gear needs to be the sum of the pole pairs in the sun and ring gears (sun has 4pp, ring has 12pp, planet should have 16pp) and each screw in the planet gear acts as a temporary magnet that is magnetized by the permanent magnetic forces of the other two gear sets, so 16 pole pairs means you should have 32 screws, but you accidentally halved it by putting 16 screws instead of 16 *pairs of screws (32 screws total) as the term pole pairs would imply.

It appears you used involutes for the gears. Might a saw tooth or acme work better?

I dunno, I think that worm gears are more practical.

lol ---- Ratio: 25740.5 ---- sun1: 296, ring1: 362 diff1: 66, sun2: 287, ring2: 351 diff2: 64, max planets = 31 31, coherent planets: 20 halfDegAB = 8.753799 and 9.028214 ---- Ratio: 25865.2 ---- sun1: 298, ring1: 364 diff1: 66, sun2: 289, ring2: 353 diff2: 64, max planets = 31 31, coherent planets: 10 halfDegAB = 17.94562 and 17.94393 ---- Ratio: 25865.2 ---- sun1: 298, ring1: 364 diff1: 66, sun2: 289, ring2: 353 diff2: 64, max planets = 31 31, coherent planets: 19 halfDegAB = 9.244713 and 8.971963 ---- Ratio: 25865.2 ---- sun1: 298, ring1: 364 diff1: 66, sun2: 289, ring2: 353 diff2: 64, max planets = 31 31, coherent planets: 20 halfDegAB = 9.244713 and 8.971963

here are planetary gears with high ratios: ---- Ratio: 5310.6 ---- sun1: 106, ring1: 158 diff1: 52, sun2: 110, ring2: 164 diff2: 54, max planets = 15 15, coherent planets: 10 halfDegAB = 17.72727 and 18.39416 ---- Ratio: 3554.626 ---- sun1: 107, ring1: 159 diff1: 52, sun2: 111, ring2: 165 diff2: 54, max planets = 16 16, coherent planets: 10 halfDegAB = 17.59398 and 18.26087 ---- Ratio: 5313.742 ---- sun1: 110, ring1: 164 diff1: 54, sun2: 106, ring2: 158 diff2: 52, max planets = 15 15, coherent planets: 10 halfDegAB = 18.39416 and 17.72727 ---- Ratio: 3557.574 ---- sun1: 111, ring1: 165 diff1: 54, sun2: 107, ring2: 159 diff2: 52, max planets = 16 16, coherent planets: 10 halfDegAB = 18.26087 and 17.59398 i have a planet gear generator which materializes them out of thin air i am checking it it today adn uploading it to thingiverse zoon1234micron soon

There should be a counter balance weight installed to keep the center of mass around the center of rotation.

Esa transmisión me parece inadecuada. Las vibraciones a altas velocidades rompen el eje y los dientes

Usefull in the circumstances you don't have access to flexible material for an harmonic drive. Harmonic drive don't have the wobbling of middle gear, much greater ratio and tooth engagement.

You have amazing skills in explaining things clearly. Well done.

Problem with magnetics is the amount of internal loss because of eddy currents

cool idea. maybe the center gear could be balanced by modulating the infill percentage at least a bit.

Might be good for powering the motion in an electric swivel head dildo?

Try swapping the incoming and outgoing rotation. In order not to slow down the final rotation, but rather to accelerate it. Is it possible to create a propeller based on this transmission mechanism ? For example, for "pedal catamarans".

Very inspiring! Ever considered to make a calender clock this way?

I highly suggest changing your bearings to nitride boron ball bearings. Not only will they not heat up as much, the ceramic bearings wont deform due to heat cycling or extended high rpm runs like metal bearings. They also chew up any junk that gets in the bearing unlike metallic bearings. But best of all? Less rolling resistance for higher system efficiency and less parasitic loss.

Keep in mind, mirroring the gear boxes doubles the gear contact area. 2x the strength, or same strength, half the weight neaded in materials

Omg this is exactly what I need

It’s an interesting concept. Have you done a comparison with a traditional gear with the same ratio for friction? I have a feeling the friction may be too high for practical purposes. Adding bearings to the shaft to reduce the friction there was a great idea, but as you mentioned in the video, there are multiple teeth meshing simultaneously instead of just one and that means more friction.

Be i interesting to see if it can be used in a bicycle.

What an interesting little gearbox. Im sure theres a few applications for it

I would have to say that a possible weak point could be the specific gear tooth shapes. This would likely require some very precisely made teeth incorporating the fact that theoretically the teeth should be wider at the edge and less wide towards the center, because of the direction of force, to be able to maintain balance. Some lubrication for high forces.

even if it has 1:400 ratio, tooth on the output shaft cycles 1:1 ratio making it highly inefficient and low durable.

Thank you for sharing your knowledge on the gearing

Very cool! I have never heard of pericyclic transmissions before

With the proper bits and materials that could drive a boring bit .

seems like a fun concept but must be one helluva thing to balance properly

Maybe good for solar panel tracking because of the slow movement required. Could probably have the gearbox sealed and filled with oil for low maintenance since solar arrays are pretty remote sometimes

A densitometer AND a level indicator all in one. Brilliant!

I have an idea for a clutch mechanism, that would require a lot of pressure but not a lot of parts.

How to create a rotor for locomotive, thank you the sound remains

as you mentioned, a solid casing made of thick steel plate, machined solid steel parts, some grease and this thing would genuinely be useful in a lot of industrial applications

Yeah, it’s cool for the guy that gets paid to repair it regularly.😅

i think this was genuinly one of the least annoying sponsor presentation ive seen,nice job bro