Fastest 3D Printed Gearbox Ever.

10 місяців тому

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350W DC Motor: amzn.to/3Py7U3U

КОМЕНТАРІ: 321

@waldfruchttee 10 місяців тому

im not a engeneer or something like that but i think torque would be a problem

@kintex6441 10 місяців тому

It is. Just an inevitability from the engines

@jascow 10 місяців тому

Yes, but there is no load. Its like picking up nothing vs picking up a tv, you would run out of torque to pick up the tv but not the nothing because there is nothing to lift

@kintex6441 10 місяців тому

@@jascow here there is something to "lift" though. Each gear acts as tension applied, creating the need for torque.

@bongogorillatag7025 10 місяців тому

That’s what I was thinking lol

@Cyberlong 10 місяців тому

@@jascowbruh, you forgot friction inefficiency. Even without a load, if the gears have too much friction, the machine won't work.

@billdoodson4232 10 місяців тому

You would get higher speeds just by lubricating the gears with a silicone spray. You could do a before and after run to see how large the improvement is.

@nuclearpowerphysics5409 10 місяців тому

He just did idiot, watch the whole video before you comment.

@poptartmcjelly7054 9 місяців тому

guy dunks oil all over the gears, no way they're under-lubed

@nuclearpowerphysics5409 9 місяців тому

@@poptartmcjelly7054 lube up 😏😏😏😏

@billdoodson4232 9 місяців тому

@@poptartmcjelly7054 Too thick and viscous, needs something really light weight and not sticky.

@Darth_Vader_jr. 8 місяців тому

Wd40

@mrzimm 10 місяців тому

Cool But did you think of using bearings for gears ? You already use non printed axels Bearings can significantly reduce friction between gears and axels, resulting in much higher resulting speed. Also bearings will help with precision which will help to reduce friction between gears and will not let them wobble (this is frictions losses too) And if you mad enough you can end up using ceramic bearing instead of usual ones, which do not need grease and have extremely low friction. This will give you the best result, but using ceramic bearings will be very costly in comparison to usual bearings

@kirknelson156 10 місяців тому

took the words right out of my mouth, thanks for saving me the time to type that 🙂

@DroidzandBrix 10 місяців тому

Not to mention it would greatly reduce wear on the gears, since there is nothing between the shaft and the gear

@aidenkyle6627 9 місяців тому

With just 120 rpm I got it going 50 rps using gears

@schrodingersmechanic7622 8 місяців тому

I built a 3d printed fidget spinner that used ceramic bearings and had a steel outer ring for maximum rotating mass. Best hand spin was a little over 7 minutes. Ceramic bearings are next level

@shiranduarte 8 місяців тому

Add a weight wheel so you can accelerate slowly but with little increment of torque. The spinning torque will be kept by the momentum of the heavy wheel, so you can add more gears if torque is the problem

@trk.is.trippin 8 місяців тому

at this point just build it out of metal

@mosesm.3431 9 місяців тому

The key is, for that 35,000 rpm motor on Amazon, that rating is given with ZERO load. (And that motor is probably not strong enough to sustain that RPM with a load) So potentially a 2:1 gear ratio attached to it might have such a load as to reduce the motor speed by half, thereby only maintaining 35,000 on the output side of this 2:1 gear ratio.

@Lucas_sGarage 10 місяців тому

there is no way that little power brick can do 350w, that's why it cuts out

@fss1704 9 місяців тому

it's probably a pwm controller.

@protogen_boi 8 місяців тому

Yea, that power brick is probably way underrated for that huge motor lol

@DavidIsTheWalrus 10 місяців тому

I would also consider teeth design, I recall another creator finding herringbone gears handling the friction problem a lot better when it comes to 3D printing.

@gqinc1202 10 місяців тому

You need a way better power supply, that brick can't supply the amperage that motor needs, that's why it shut off

@fss1704 9 місяців тому

pwm controller not psu

@kevinroscom 8 місяців тому

@@fss1704PWM isn't magic, if it's a 350 watt motor and you run it at 100% duty cycle you're still going to saturate whatever the power supply limit is. Judging by the thin gauge of the wires connecting to the PWM controller as compared to the motor, yeah he's definitely running out of current

@Denis7947. Місяць тому

It needs 31-30 amps for that motor

@Denis7947. Місяць тому

If is a 12v motor

@PrinceofWalesisland Місяць тому

Your wires feeding your motor are way too small! You're not getting near the output the motor is capable of. The leads coming from the motor are designed to be connected directly to an ESC. If you need to extend these wires you have to run a heavier gauge. In your case you have a smaller gauge wire running to the bigger wires from the motor, no bueno! BTW if you're really trying to get insane rpms you either need to run bearings or tight tolerance lubricated bushings. The motor didn't stall when you fed more power, you had runaway thermal impedance in that tiny wire you're feeding the motor with, I'm surprised it didn't catch on fire!

@bombn4779 9 місяців тому

Try building a transmission where you can change gears to build speed more efficiently, also try installing bearings on each gear to reduce friction

@Bomber_fireworks 8 місяців тому

Hey, just a thought, you could try to use magnetic gears to avoid friction, plus put gears on a special high speed ballbearings. Eventually, the speed is limited by the material strength, at some point the gear will self destruct by the centrifugal force, so maybe the last gear could be made from metal. Theoretically, few houndreds thouthands PRM could be reacheble

@thetomster7625 8 місяців тому

a got a few questions: - why not adding bearings? - why not adding lubrication? - why not furthermore decrease mechanical tolerances? its seems to have a huge amount of play - why not improve on the gearteeth design?

@JoeBlow-zr2ru 7 місяців тому

The motor is *_not_* going to suddenly "stall" as the power continues to be increased (unless it burns out). Instead, it would simply reach a maximum speed. Probably you reached the current (or temperature) limit of your supply's regulator (or maybe the speed controller), and it shut off it's output to prevent damage, until the load was disconnected (or the semiconductor device cooled down). You can check this with a voltmeter across the motor wires.

@TheRaidingGamer 3 місяці тому

I was thinking the same thing! Brushed DC motors like the one he showed don’t “stall” since they’re mechanically commutated (they can stall but not in the same way as BLDCs, like the guy in the video is describing)

@BJL2142 8 місяців тому

Also worth noting that the torque is reduced due to the multiplication, its always a trade off, multiply torque/ruduce speed or multiply speed/reduce torque

@jakobvelepec5131 8 місяців тому

power supply for the motor definitely cant provide 350w

@MrRancid1986 Місяць тому

Maybee 20w lol

@SuperLowe1 8 місяців тому

for the axles, next time freeze them and then tap them in, then let them seat as they come up to temp

@slapyomommahard6515 Місяць тому

If it could hold the weight of a car and still go the same rpm, that car would theoretically move at exactly 3,730.71428576 MPH

@Voice_Of_Truth467 8 місяців тому

Try using some bearings next time. That way the force of friction will be reduced to a minimum, may achieve a higher rpm that can be sustained. This will also increase the efficiency of the system.

@neusgames321 9 місяців тому

Some big improvements can be made to be honest. First of all bearings would decrease a lot of friction. The second is to use as little gears as possible. There is energy loss in every gear connection you make. Rather use two gears with hughe size difference than 5 in a row. Third every motor has a rpm range that delivers the best performance, depending on the motor type this range can vary but in most electrical motors this range is actually at low rpm.

@HelloKittyFanMan 6 місяців тому

I don't know about using gears that are as little as possible. That doesn't seem like a sound idea. But yeah, he should try to find some print files with helical gears in them instead of spur gears. Why use spur gears when you could use helicals? 🤷🏻‍♂️

@simoesp 8 місяців тому

some issue you have is also power the wires and transformer you were using definitively doesn't trow 14 Amps for the motor to hold on the 350W

@rasikrodriguez3962 8 місяців тому

What material did you use to print the gears? Those are extreme rpms, I did not know a 3d printed part could survive at that speed!

@hestonbriant1969 8 місяців тому

Incase you overcome your friction loss issues: Depending on the radius, a 100k rpm shaft speed could cause the gear teeth to exceed the speed of sound.

@SuperPhunThyme9 8 місяців тому

Lube the gears with Teflon powder. It's like dry graphite lubricant, but less dirty and way more slippery-er.

@Tylorean 8 місяців тому

I’ve been trying to upgrade a fan i have at home and tried various ways of designing gears, but they all didn’t work. Which tool are you using to get your gears?

@Dazdigo 8 місяців тому

Also there is little surface contact between the gears so any sort of work on it would break teeth.

@parzival7071 3 місяці тому

im so thankfull mate i have an RPM problem with one of my projekts and didnt even think about such a controller

@Derpynewb 2 місяці тому

torque multiplication also works the othet way. thay ratio also works in reverse for multiplying the resistance of that gear.

@Caramel--- 12 днів тому

If you really wanted high RPM he could get a Castle Creations brushless 7700kv motor when you run it on 4S or 16.8 volts full charge you should get just about 100,000 RPM and you could put bearings in between the shaft and the gears, also adding grease you could probably geared up two to three times skit about 200,000 to 400,000RPM The RPM and gear ratio was a estimate but the motor should be able to run the high of RPM and don't run it for too long or the motor might heat up

@danamatic7216 8 місяців тому

Time to build a transmission.

@KingChess602 8 місяців тому

How do you determine the gear ratio and how do you make it in Blender?

@TheRecho 8 місяців тому

What program do you use for your drawing of the gears?

@StevenHouse1980 10 місяців тому

Yes but if you setup the drive wheel to give power to 6 other wheels in a Hex configuration around it could you get each one to make enough power to the drive wheel and a bit more?

@_cody 8 місяців тому

also amazon has a kit with up to a 3000watt brushless motor that has high rpm that would do great for this and its less then 200$

@sharonbradford4494 6 днів тому

Speed controller also works as a light dimmer

@petermorris9592 6 місяців тому

The motor isn't stalling. The power supply is being overloaded. Assuming that 350 W motor runs from 24 V, you'll need a 15 A power supply. That one you showed doesn't look like it could do mote than 2!

@ogysmet9667 3 місяці тому

For speeds like that, ball bearings with the proper C value will be a game changer, every C value is for a particular rotation speed. This will enable you to stop the gears from rubbing and shifting back and forward on the axle. I use C3 barrings up to 20k rpm. Above, you would probably need type C4.

@kai._.gilligan541 10 місяців тому

Need to be using bearings on each shaft and lubricant between the gears

@josephroche9311 6 місяців тому

Love the video. Would it help to add wheel bearings (e.g., 608 bearing) to reduce friction from the axle. Also, I would be super grateful if you may please let me know how I may get the STL/other 3D printing files for your gear designs. Thank you!

@CrestRising 7 місяців тому

bearings and shims to stop the gears slapping off the stanchions as they rotate

@user-ur6po4yr9o 8 днів тому

at this point the main issue is not friction, but centrifugal force, because i'm scared it will tear itself apart at 100,000 rpm.

@PhilmoreJenkins 8 місяців тому

Isn't the torque of DC motors directly connected to their speed (input voltage)? Wouldn't an ac motor be better suited for this type of application? That way you get max torque even at lower speeds in order to fight that high torque?

@enigmatique1387 9 місяців тому

What if we implemented this design into vehicles? Would it result in less fuel consumption if the motors are spinning slower gears but putting out a faster rotation?

@romefalls. 9 місяців тому

that's already implemented with those 10 speed gearboxes that are becoming sorta common nowadays. at the cost of stressing the bleep out of the engine, you could theoretically have your engine sitting at idling rpm while driving at 60mph on the highway.

@romefalls. 9 місяців тому

forgot to mention it does impact fuel consumption in a good way, because in a nutshell lower rpm equals lower fuel consumption... theoretically. im not a motor wagon fixer person

@dheerajkr.7899 Місяць тому

you should add a flywheel to the last gear to get maximum output

@joshuameredith4602 9 місяців тому

I think I have an idea to make it gearbox spin fast, so what is of course you start with a big gear and you know attached to a small gear simple, instead of adding a bigger gear to the small gear to the small gear. How about you add a small gear to it that has more teeth and then have a smaller for that gear(with less teeth of course), I hope you get the point

@ShadyHero Місяць тому

0:21 roughly half a horsepower for anyone wondering. 0.469358 HP to be exact

@deadshot6477 10 місяців тому

I'm not an engineer but I think it's common sense to add bearing

@JohnDoe-un3xm 8 місяців тому

worth mentioning you can do a 32:1 gear ratio with only one set of gears.

@Twostrokejoe 3 місяці тому

the large pivots are a high point of friction. make them a lot smaller, or place the gears on bearings. i think the limit for speed will be when one of the gears flys apart.

@Anton_X69 10 місяців тому

Said it before, Order some small bearings and press into the gears, And ull notice a huge diffrence

@themonsterunderyourbed9408 Місяць тому

He's a UKpostsr that's decent at 3d printing. He has no idea how to make those design better.

@Thexiledemon Місяць тому

0:12 blud became McQueen

@ruthberryman937 3 місяці тому

I just love watching his videos

@user-st1cw7yw7r 6 місяців тому

it is necessary to add massive flywheels that will accumulate kinetic energy and increase the impact force according to the lever rule.

@user-cv3kx7fc7w 3 місяці тому

being more accurate and putting more care into your craft will result in a better product, not just slapping stuff together

@andymuzzo8568 9 місяців тому

How many watts is that power supply. Does look like it can output greater than 350w. Also makes the setup with less parts. And get some needle rolling bearings

@alexander2856 9 місяців тому

you can also calculate the speed of movement of the extreme point on the last gear, and estimate how close you are to the speed of light o_O

@virrebooi93 2 дні тому

Use bearings wtf

@joshanderson1019 8 місяців тому

Your biggest problem is that you are trying to feed a 300w motor with a tiny power supply and when the motor overloads the power supply, it shuts off. Borrow one from a 3d printer and try again.

@3DPrinterAcademy 8 місяців тому

!! the Ender 3 has a 24v 350w power supply, would be perfect for this motor

@ScorgeRudess 10 місяців тому

This is insane, Thanks!

@maxholf 2 місяці тому

Hey I love your videos found your channel today can you match the speed of light by increasing the ratio and using more powerful motor?

@null_0x00 3 місяці тому

That tiny little power supply will never be able to drive a 350 watt motor.

@pixelapse9613 3 місяці тому

5:36 Best Quote ever for Mechanical Engineering students

@Impossible_Fishy 8 місяців тому

You need a 15 amp 24 volt psi minimum, a wall wart isn’t doing that

@rowanrichard8037 6 місяців тому

Maybe use bearings, the friction due to vibration might be really affecting the rotation of the last gear, I could be wrong cause I’m not an engineer 🤷‍♂️

@_cody 8 місяців тому

the plug you used to power that motor i guarantee wasn't enough amps I've used those motors they take a lot use 2 12 volt battery's to power the motor and it should reach 100k rpm that power brick can at most give 3 amps of power and that motor uses 14 amps under load

@anonymous-mj8wb 8 місяців тому

bearings and very light oil. that would make the last one spin over 100k rpm

@nickolaslandon4640 8 місяців тому

Silicon spray lubricant would help wonders

@user-st6qu7lo4y 22 дні тому

You should build a launcher for bayblades Have you ever thought of launching a bayblade with this crazy rpm?

@rdizzy1 10 місяців тому

I wish microcenter would open up some stores in upstate NY.

@Wojtek_1777 2 місяці тому

Same thing but in Wisconsin or Arizona

@bricoschmoo1897 10 місяців тому

I love how you fidget spinned the variable speed controller at the begining of the video :'D

@quinnfoster1234 10 місяців тому

Haha right

@wistralis7387 9 місяців тому

You should try plotting those numbers on a graph to find an optimal gear ratio

@user-ke7ki6mx2z 12 днів тому

0:42 UKposts captions : ya that’s sounds like music to me

@mcbeenb 8 місяців тому

those gears flopping around have huge losses. lock down those axles, and get some bearing in there to control your motion.

@fpaonchart 8 місяців тому

So with 43 525 RPM and finally gear with rayon to 2cm we have ((43525(2pi))/100)*60*3.6 ≈ 590 000 km/h ≈ 367 000 mph ≈ 1/500 of celerity.

@Austinsairplanes 8 місяців тому

Not sure those tiny wires from your power source would even provide enough current to get that motor up to speed

@iangreenhoe6611 3 місяці тому

A great experiment to repeat WITH THE AXLES ON BEARINGS

@MattThePrintingNerd 10 місяців тому

Very nice video! I like the trend that more and more people printing parts that where you normally would use steel or aluminium for! Good job!

@farmlifefpv8735 7 місяців тому

There is no way that little power supply can feed that motor under load. That motor stalling is probably the power supply cutting out. Get a bigger power supply so you can feed it some proper BEANS!

@metalhead2476 Місяць тому

Have you tried with bearings instead of directly on axels?

@asa7398 2 місяці тому

You could've used a brushless motor or a 775 dc motor that can easily top 7k to 30k rpm

@jenniferwhichelo4787 8 місяців тому

You would need a bigger motor for it to be faster

@0j1xArab 5 місяців тому

Can You Please Make That Spreadsheet Public to make copies? Thank You!

@aidanschmidt 2 місяці тому

I am pursuing an internal combustion engine development career. I think that a simple $100 harbor freight 212cc engine could have enough torque to get 100k rpm

@marshallhenry7214 8 місяців тому

The vibration in the gears create ALOTof drag too

@alexanderrog9940 10 місяців тому

very interesting video! thanks a lot for all your videos! I have one question. with no gears the motor spins with 3300 rpm , and with the load of the gears at the end it spins with 3482 rpm? Am i missing something?

@Lucas_sGarage 10 місяців тому

my guess is that the long tape at the beginning was tricking the tachometer

@1islam1 10 місяців тому

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@Lucas_sGarage 10 місяців тому

@@1islam1 nah thx I'm Christian

@jesse-dg8yx 6 місяців тому

Ever heard of grease? Most gearboxes have a layer of it. Also, like someone else said, torque is the issue in this equation.

@user-os6zc5qf4r 8 місяців тому

Can it spin with speed of light??

@sajidmohammad3190 10 місяців тому

Increase power handling capability of your electric source and and speed controller.

@user-xz3xf6bc8o 10 місяців тому

Keep it up, I learned everything about gears all thanks to YOU !!! Greetings from Balkans

@user-mw4po9mx1t 6 місяців тому

Something is telling me that you should try to cut with that..

@wilmercb 5 місяців тому

Do you have a download file of the Numbers spread sheet of the gear ratios? Thanks

@EpicToadRage 8 місяців тому

Why not use skateboard bearings to reduce friction?

@owensjs2 8 місяців тому

no lubrication of any kind?

@nikolus24 5 місяців тому

Im pretty sure your power supply is the limiting factor. The motor can pull way more then the supply can well supply.

@Frambhueee 8 місяців тому

How many gears do ypu need to reach the speed of light?

@lozercakez Місяць тому

A lot but the torque would be earth shattering

@billytisme 10 місяців тому

That small power supply surely cant supply 350W?

@erick2328 10 місяців тому

that thing with knob is not the power supply i believe, thats the speed controller

@billytisme 9 місяців тому

@@erick2328 at 0:21 it is a small wall adapter (black box) plus the extra long wires for extra resistance

@erick2328 9 місяців тому

@@billytisme oh yea, i didnt see that, that probably only 5a adaptor

@matejgamingandotherstuff6484 3 місяці тому

@@erick2328 That's probably a 2A adapter.

@sizzlinggrandma2609 8 місяців тому

"look at my cool gear train" *epic boss music starts playing*

@makagyngrimm3392 12 днів тому

Someone please tell me where i know the song at the end from. Im begging you

@eon6857 8 місяців тому

5:29 what is name of this program ?

@_Pekkarow_YT 8 місяців тому

Bro how much does all of these cost and how much years of experience do you have

@mrhaftbar 8 місяців тому

bearings?