Here's Why EVERY Cube Needs the GTS3 Spring System 

Better than my physics teacher

This video is amazing. I definitely agree that companies need to start planning ahead and improving their spring systems (or they could just put the perfect springs in their cubes in the first place...). Your channel has got to be one of the most informative channels in cubing, keep it up dude!

2 years later: Now a $9 cube has the gts3 tension system

Great vid and explanation! I've just started playing around with springs in 3D Printed puzzles and definitely encountered the difficulty of choosing the right ones and of the right length. I wonder if you could do something similar but adjust the spring torsionally... only a small amount but fix both ends and wind it in or out. That would give you the same travel distance but different force perhaps.

1:02 needed the vsauce background music it would have been awesome

I really like the way you visualize the concepts you’re explaining. Not just the sketch of a cube’s mechanism, but also the graphs make the video even more interesting in my opinion. Good video!

This is so good! Thanks so much for sharing :D

2 Gan employee disliked

True engineer.. But this isn't sorn extraordinary physics pals It's just the basics but he explained so well. Great work sir. 😃

Here's Why EVERY Cuber Needs to Watch This Video.

I have a v16 3.8 litre 1,800 horsepower spring system in my cube

Rs3m 2020: allow me to introduce myself

This was so clear and helpful! I also agree that the range for spring compression could be improved. Hopefully more future flagship cubes implement a similar system.

Anti-Ridge Club unite! But I do agree, the spring system was a great idea. Even better than the GES nuts from GAN.

3:11 He deadass did U5!

3:02 RIP GTS lol

5 years later, people are complaining about moyu not updating their compression system

Oof. Guess I have to buy the GTS3M now to test it out.

Holy shit. Way to go above and beyond. This is by far the best cubing-related review/analysis type video I've ever seen. Thank you for putting in all the effort that clearly went into this video. It paid off big time.

Physics has always been my least favorite thing on this Earth but thank you for making it bearable haha. Really amazing video man! You have a real gift for teaching people dude. You are great at explaining things (nothing new here) but also at designing visual aids that are actually useful and can make complicated topics so much easier to understand. Idk what your career path is but teaching is def a viable option for you haha.

8:5 - 8:9 Gan Employees are triggered and they hit the dislike button

J Perm, thanks for all your helpful and interesting videos. I know that the GTS3 came out two years ago and that this video is also two years old, but I still would like to share some thoughts about the separate mechanism for adjusting the spring pre-compression. With conventional speed cubes, adjusting the screw has the effect of adjusting both slack and spring compression, which are separate attributes that are coupled by virtue of design. In speed cubes generally, the distance from the head of the screw to the center of the cube is somewhat greater than what is needed to accommodate the dimension of the cube. I.e., there is some slack, the exact amount determined by the adjustment of the screw. The springs take up the slack, thereby supplying the slackened cube with needed rigidity. The spring is held in place by the head of the screw, and at the other end it pushes against the base of the center square piece, such that the six center square pieces are pushed inward toward one another. Without the springs, the edge and corner pieces would potentially fall out, depending on the amount of slack. Corner cutting wouldn't be possible without slack. But too much slack can make the corner pieces prone to flip, especially if the spring force isn't strong enough to help prevent this from occurring. In the design used by most all speed cubes, the spring force weakens slightly when you increase the slack, because when you turn the screw out (counterclockwise) to increase the slack, this reduces the amount of pre-compression of the spring. Notwithstanding that this effect is not great, it is undesirable for the spring force to automatically weaken in conjunction with an increase in slack. MoYo's innovation provides a separate means to adjust the spring pre-compression, independently of the slack adjustment, such that it is possible to offset the effect that slack adjustment has on the spring pre-compression. Inside each of the center square pieces, there is a small cup made of clear plastic, round with a flat bottom. You rotate the cup counterclockwise using the supplied tool, and as you turn it, the cup works its way out along a ratcheting ramp, until you go one step beyond the position where the cup is as far out as it goes, at which point it jumps fully back into the interior of the piece. Since the base of this cup supports the bottom of the spring, this mechanism allows for fine-tuning the spring force, independently of the slack adjustment. This is moderately useful, however I think it is important to note that this mechanism permits just enough variation of the spring pre-compression to compensate for the variation caused by the slack adjustment, which is typically a small variation, except possibly when the slack is reduced to nearly nothing, and then depending on how carefully the center square piece was designed. At the other end of the slack adjustment range, it is difficult to discern the effect that this separate adjustment has on the rigidity of the cube. Swapping out the springs remains the only means by which it is generally possible for the owner to adjust slack and rigidity each independently of the other and according to personal preference. Given a choice between a cube with this innovative mechanism vs. a cube that includes extra sets of springs, I would hands down take the one with the extra springs.

im gonna tell my mum i was doing physics extra credit. cuz technically i was

8:05 just DESTROYED me XD....

Great video. My cube has that system and has no instruction or explanation of adjustment. Absolutely mind boggling why a product like this is boxed with no instructions.

3:50 just after it said “Hooke’s Law is” I got an ANW ad. Therefore Hooke’s Law is an ANW ad.

I've just got one after waiting 2 months for delivery

Last time I was this early People clicked read more I like you. You are a rebel

I've been cubing for a good 10 years, but felt comfy being sub-30. Seeing the current records and innovations in speedcubing has given me the drive to get better. Your channel's a godsend, so keep it up!

5:42 Some springs are sold without the cube at The Cubicle

The use of animation and your content is very appropriate! I love it And your spring content was so so new to me, learnt just so much from the video

Just had a discussion on Reddit. One thing you forget here is that when you click the adjustment thingie out, you are actually lifting the inside bottom of the center closer to the screw while compressing the spring. Now assume you could move the center out 3mm with setting 0, and setting 7 is 1mm further out. That means the center will be able to travel only 2mm. You could imagine the same without springs. The more you lift the inside of center, the shorter it will move. Now, a standard M screw like M2, M3 etc they have a pitch of 0.5mm - That means it will turn 0.5 mm in or out by one full 360 degree turn. If we assume difference between min&max click/setting is 1mm (looks close), then that is exactly 8 quarter turns on an M2 screw. And we have a clicks. So to have exactly the same distance on min&max on the side of the center closer to the core, you would have to turn as many 1/4 turns on the screw than you to on the adjustment thing. Then distance from core to underbelly of corner is the same. Imagine no springs. Then adjusting the click system out to where it touches the screw at setting 7 and you will have one distance from center. Then moving it to setting 0, you can pull the center 1mm further away from core. So from a physics point of view, the screw must be turned in unison with the click thing.

Little did he know that it will come with EVERY moyu cube after

We talked about this in physics class. I'm quiet, so I didn't speak up, but I'm just imagining how funny it would be if I told him I already knew about it because of Rubik's cubes.

This is one of your best videos yet! Now I know what to expect from my GTS3, but also WHY it'll do what it does. You explained it very well, making me understand what happens and why, without overcomplicating it.

*SCIENCE*

Omg this is the best cubing video ever.

If some people use mf3rs2 i recommend to use the diansheng springs to it it makes more Corner Cuts And Stable :D

The cube looks too funny without springs

this video is absolutely perfect, very well made.👍 I know this is probably a bit of rambling, but I have to tell a quick story about spring compression. Half a year ago, I tried forever to find the perfect tensions on my gts2 and goguan pro. It took forever to find the perfect tensions, literally weeks, and I was never happy with it. When you said the thing about the gts 2, that really loose tensions and hard springs would be the best, I literally said yes out loud. :P Long story short, one day it clicked, and I was like: dude, all I need to do is put 2 more washers on every side in my cube and I have perfect spring strength. And then I was like,.... I'm an Idiot, It took me 3,5 years of cubing to find out that putting extra washers in the cube does the same as putting harder springs in it. Then I ended up putting 3 extra washers in my gts2 and I put it on the loosest possible tensions, and that's my main I get the best times with,... by far. :) yeah,... maybe putting extra washers in the gts3 would also solve your problem with the range. :) ok, then,.. thanks If you read my 215 word essay. :P

Today we're learning physics But... I'm 6th grade..

Not to be pedantic, but to clear up something that may be a bit confusing: In Hooke's Law, the "distance" is referring to how much it's moved from it's relaxed position (so you can increase the force exerted by the spring by compressing it OR by putting it under tension by pulling it apart). This video is great, but seemed a bit confusing to say the distance was increasing when compressing the spring with the new system. :)

Here's what I don't get: turning the screw chances spring compression (= distance) from the upper side, turning the "compression adjustment" changes it from the bottom. If I increase compression through the latter, the peaces can again move out less, just as it happens when doing the former and vice versa. So either I didn't understand how this system works or I slept during classical mechanics class when I did my master's in physics.

I don't get it. How is compressing the spring in the GTS3 different from tensioning the screw? I know that the spring is placed between the screw and a plastic surface on the piece. Let's call the room between the screw and that surface "the wiggle room". I get how the GAN system works. All the extra springs have the same length, but each has a different constant hence a different strength. So when you swap the springs, you're changing their strength without changing the wiggle room (because of the same springs' length) But in the GTS3 system, increasing the springs' strength is done by compressing them, i.e, by raising the surface of the piece that the spring touches, which means that the wiggle room is shortened too. So yes, I made the springs exert more force on the piece, but I also shortened the wiggle room, which can be done only by tensioning the screw (which also compresses the springs). The only difference I see is that the screw gets closer to the piece when tensioning it, but when compressing the spring, the piece gets taller, hence closer to the screw.

I still don't get it. While I do understand that compressing a spring makes it behave like a stronger spring, but when you compress the spring, that means you also change the length of the spring, right? The spring becomes shorter when you compress it. This means that your center piece travel is affected as well. Hence, it seems to have the same effect as compared to if you just turn the screw tighter. Am I missing something here?

My new favorite RU-vid/ physics video 😊👍

I like this system. That’s like Gan GES system but much better: u don’t have to change this small colorful shets on gan from ones to others, u can just change one blue shet on gts 3 however u want. Nice.

i watched this 5 times and finally know what he's talking about

Now it's the haven era for Speed cubar with the help of magnets 😊😍 like those who agree

1:03Vsauce music plays

I still don't understand the difference between the screw increasing the compression of the spring and this system increasing the compression of the spring. I guess I'll have to see one in person sometime.

*2 years later* RS3M2020-let me introduce myself

Anyone here when jr cuber has 1 million subs? Yeah, me neither.

AWESOME video. I just ordered the GTS3 M a couple of days ago and it's arriving tomorrow, and I can't wait to try out MoYu's new cubing innovations. 😃

man, I am in grade 6 now, it is my first physics class and this shows up !!!!!!!!!!!!

The best video of all time Really great explanation 👍🏻

Ok if its your main i will buy it on speedcubeshop with the discout code jperm

Yeah now every moyu cube STILL has it 😭

Anyone remember the dual adjustment system for the weilong GTS (the first one)

I don't totally agree. It's a good system, yes. It's a good starting point, but it's not faster than GES system. Swapping the GES nuts isn't a "spring swap" like other cubes. It takes 3-4 minutes to change all the 6 nuts. And when you put the new nuts, you align them with the screw and you're ready to cube. I don't think you can tension all the six screws of the GTS3 and set the six blue pieces to the same position in 3-4 minutes. The first step is to set the six screw tension, like every cube in history (except Gan). After that you can use this good idea of spring compression. And with this system you have to lubricate the contact points between screws and springs. And also the contact points between springs and washers (if you don't want spring noise, that in my GTS3 was really annoying). I love setting cubes, lubing and modding, but this system, for me, it's not a good step. You have to set 2 different things for face (and cubers don't like setting cubes), with GES you have to set nothing. In this cube you need to find correct screw tension for each face, and it has to be equal for each face. This is the most hated step for most cubers... :D And it take a lot of time. I hope that next version of this system has a non-adjustable screw (already set to corner-cut perfectly), so you have to choose only the spring compression. That would be a great step, imho. :) But for now (in my opinion) GES is still better than this system.

So pretty much gans xs system but better

Hooke's Law continued: "the spring follows the equation F=kD until a certain limit of which the spring would then stretch without following the equation" Why am I even saying this. It's just a GTS3 video.

ok i have a question. what does gts mean? i mean is it a moyu sub brand?

" Unless they do the same thing" *Vsauce music plays*

3:51 jperm Don't teach me physics 😤I hate it 😒 Just kidding 😂

Does that mean loose tensions strong spring would be optimal?

and non-cubers thought a rubix cube was just a toy

Sorry J I will have to respectfully disagree with you here. True the GTS3 system is faster than the GES nuts, but its not the same nor is it the better system, at least in my opinion. With the GTS spring system you are compressing the springs themselves to change the feel of the cube, thus limiting the springs travel and in the end reducing corner cutting and performance even if the screw itself is on a looser tension, Whereas the GES nuts (assuming are set to the same tension) have identical length of travel from nut to nut translating to the same corner cutting performance from nut to nut but different cube feels for each nut. I do applaud Moyu though for at least trying to innovate as it seemed like Gan was the only one for a long while, but this is a more quick and sloppy way to go about it, and if that works for some people then good for them, but IMO the GES nuts are superior. And let's be serious here it takes like all of maybe 5 min to swap GES nuts and once u find the one u want its done, its not like every week you have to get back in there and do it all over again.

I just checked out at speedcubeshop and used code jperm

this video has more views than a educational video

captions be like hope you can read chinese

Great video dude, you got everything right, this was what I actually needed to show everyone why my GTS 3 is better than other cubes

I think you need more diagram that includes the spring compression system of GTS3. I'm not thoroughly convinced that the spring compression system is any different than tightening or loosening the screw.

4:04 what I say when a bully is coming

Sir any giveway of cube gift.

3:40 i litterly got that theory today at school lol

1:02 missed V sauce opportunity

Wow, you are so good at explaining. I mean i never knew what springs are for and the animations look very cool as well. Your videos are so helpful and full of information. I‘ve never had physics in school because im very young but I could instantly understand what you said. Overall you are my favourite cubing channel on youtube and because of you I got so much better in cubing. I just wanted to say thank you for the work that you put in into your videos. Keep it up!

Which spring tension you use

thanks, i learned a lot about cube physics

so many times my cube popped cause its springs was weak..

This is the equivalent on why the Floyd Rose was a major success in Guitars

1:00 V-sauce has enterd the chat

He's also teach us how important is spring strength with Math Pyshics

1:03 Hey Vsauce, Michael here

When you tighten your screws, doesn’t that compress the springs more. Wouldn’t that make it better to have variation k-values rather than the distance compressed.

My one centre peace dissamble automatically after some time turning cube is MF3RS2 what to do plz say say plzzz!!!

Can you make a similar video on the new gan system that the Gan 356 X has ? Now that it's kinda the old system combined with the system of the gts

I always thought about this while tensioning my cube!

Physica are my fav subject lol never knew it would come in handy in my hobbies

I think there's a problem though.. The more you gain on spring strength when compressing, the more you lose on distance.

2 years later Every cube had this system

That's one of your best videos, it's literally amazing. You explained some concepts of physics ahd told us about springs, a really important part of cubing. And yes, I needed a year to comment this.

Can you make a video about the GAN 354? Or just let me know your thoughts on it? I’m planning on getting it.

3:12 lmao

That was incredibly well made. Awesome video man

See, when we increase the spring tension by compressing it, the travel of that layer is also being limited, which is not always favourable. So we might need long distance between the core & the screw, but at the same time we might need greater spring force. Gan allows us to achieve this.

Thank you so much dude 🙏... I needed to know exactly what to do with the spring compression and so many other videos didn't really explain so well .... without taking my moyu rs3m apart and figuring exactly what the tool does ,you explained perfectly..... thank you again .. great video .. I'm new to cubing and getting faster ... ha ha ha , I'm 53 and always wanted to solve the cube and now I can .. I have a few decent speed cubes but I still want more 😂😂... so what cubes do you recommend.. my best ones are the x-man tornado v3 maglev. And my moyu rs3m v5 maglev ball core robot ... I'm thinking on the GAN 11 m pro ...or the GAN 356 m ? .. or something else ?....

Hey, do you still do solve critiques? if you do, i will do a ao5 on 3x3. Quick side note: i may not be good at f2l and cross :/. BTW, Great video! :D OH, i forgot i will post the video on Aug 10 2018

Great vid, though your terminology is a little confusing. Tension and compression are two kinds of stress. The force due to screw tension always equals that due to the spring compression, or else the screw would be accelerating. Without springs, the screws experience no tension at all. I think when you say "screw tension" you're referring to the exposed length of the spring?