Precision Gyroscope (colors may vary)

Bought this for my just turned 5 year old Grandson to demonstrate how the "gyro-helicopters" and "drones" work. He is a kid with everything and is deep into Legos. We watched the videos and he was super excited about getting one. Not being in the stores, we had to wait for delivery. Every day he was filled with anticipation of this "magical gift" He actually got a new bike for his birthday and shocked his parents by only asking if the "gyroscope" had arrived. The gyroscope came in his favorite color "neon green" and it was an immediate hit. The gyroscope itself works flawlessly and can actually spin for a couple of minutes. We purchased the old string model as well and this one is certainly better built and the pull piece made it easy for him to use it with ease. There probably are not enough words to express how much he loves this "toy" He gives shows to whoever is around showing the tricks and spends countless hours just spinning it in every variation. Three months later, I see him during my calls on Facetime, still being obsessed with and showing me his latest trick. When I say "trick" he actually is dropping the spinning gyroscope on the floor and it just spins away. I strongly recommend this gyroscope as a great teaching and fun filled toy.

I needed a gyroscope for a physics class I was presenting. I had the classic metal gyroscope, but it had bent and no longer spun reliably. This is a great substitute - the plastic frame is more "precise", and I love the plastic zip pull for getting it going. Far faster than wrapping a string (though that is also an option). It does vibrate a bit - it's not quite precision, but it works. Also, the hole for the string was blocked with plastic flashing, requiring me to cut it out with an X-acto blade. But it's not that $250 gyroscope you can find on Amazon either - it works well enough for the price.

This is one of the best gyroscopes you can spin with a ripcord which is a huge plus. I own many of the older heavy duty metal ones you have to use a string to spin. This is not quite as solid but the build quality is still very good. The only downside is the plastic stand is not heavy enough to stabilize the gyroscope. I've had to use metal stands from other gyroscopes I own with this.

Great little gyroscope. It spins for a good minute. This is my second one, My first was purchased for me by my mother over 10 years ago, it was this same model. The only difference that I can tell is the weight rings in these newer ones don't look as smooth and well finished as mine from years ago which still operates fantastically. My old one has a little more slop and play in it as it has seen hours of use. this new one spins great! I haven't had problems that some users have with the rip cord getting ruined. I am careful to insert it straight and pull it out straight. I don't take it easy though, I pull it as hard as possible to really get a good spin and boy does it spin! Brought it into the office and employees got a kick out of seeing how it works. (I work with a bunch of engineers so the physics conversations really started flowing)

It's heavy, which is good, it gives a more definite feel of the "gyro-power" that resists any attempts to move it. Flipping it upside down while it's going gives an awesome feeling as it 'resists' your turning. But ^^^ is if you're holding it with your hand. Which I can say was not the reason I got this. I, just like most of you I'm assuming, bought this to display it to friends and family on tables and such. (Quick note, the heaviness of it creates a momentum far far greater than any friction the lil black base displayed in the picture can have thus the base will actually be moved around by the force of the gyro, rendering it utterly useless. You'd have like superglue it down because I don't think any form of tape would be strong enough. Base = light and small, gyro = heavy and big) Anyways, the gyro I got was a green one, not a blue like depicted, but that was fine really. It came with a ripcord mechanism very very similar to bey-blades (toy tops) therefore, launching this thing is incredibly easy. There is a small hole and string included if you like to push this thing with like a kitestring or something. Given all of this however, there was one major flaw. The outer horizontal ring you see, the thin one, is un-proportional. One side of it is clearly larger than the other. This unbalance causes this gyro to quickly fall out of balance. IE: land on it's side/topple over. Gyros are supposed to stay upright or whatever position you put it in for a while, but the most I could get was about 60 seconds before it started wobbling and fell to its side. And that was with a complete upright stance. If you lean it at all, it's even less time. All the while, the gyro is wizzin all over the place like a beyblade if you put it on a flat surface. Obviously, this was one gyroscope out of many. But I do suspect that even if you get one that is perfectly symmetrical, any drop on it's side will bend the ring because it doesn't feel sturdy. Conclusion: it works, but not well enough to offer vastly more entertainment than frustration.

Didn't work well. Its unfortunate that choices for gyroscopes are limited to either super cheap (and low quality) or super expensive. This one was not even worth the low price I paid...and I would have paid more. Can't someone offer a decent one for $20-$25? Each spin lasted only a few seconds before it lost momentum and became unstable. Also, it vibrated so much that it would not stay on a hard edge. The stand is so light the gyroscope just sort of falls off of it.

Nice can stay for a good long of time although I stepped on mine and it broke the ring I put it back still spins really good just not as long very good and easy to spin you don’t need to use a string like the old one which I like more but if you like it more you can still youse the string if you like over all very good product would get again.

I agree with the one reviewer on the need for oiling the bearings as received and suspect that this is true of most toy gyroscopes. Point contact type bearings definitely require lubrication occasionally to give decent life. This unit claims ball bearings but they are molded into the rotor shaft so have been heated up during the plastics molding process. Not good for the original lubrication IMO. I cannot agree with the reviewer who speaks of gimbals though as this is not a gimballed gyroscope. Amazon does offer gimballed gyroscopes intended for use in engineering and physics teaching but they are considerably more expensive, starting at about $35, with almost all metal construction and going up to about $140 for Amazon's offerings. They are also not suitable for some of the things that this toy gyroscope is good for as typically true gimbal mounted gyroscopes do not include a guard ring around the rotor assembly which all the toy versions have. I believe that the reviewer was referring to the frame and bearings. As noted above a bit of oil helps a lot and will probably extend the life expectancy but there is apparently no adjustment available for rotor end play in the frame. After oiling it runs well so far for up to a couple of minutes by my timing. That may extend slightly as the bearings break-in or I gain in experience with starting it. I wish that the documentation of experiments to try shipped with the gyroscope had more than the four examples included. Even a toy like this can be a learning device. Keep in mind that as a ball bearing supported rotor gyroscope, bearing damage is very likely if it is dropped. The only other ball bearing gyroscopes currently on the market, both a lot more expensive, specifically warn of this hazard in their documentation.

It is a very fine product which functions perfectly to demonstrate the principles of gyroscope. My kids love to play with it. A must have for teachers, parents and kids who want their kids to feel the magic of science.

Fonctionne bien longtemps

O produto veio em perfeita ordem, td certo.

The toy is well built and construction is reasonably precise. It is a good toy to demonstrate gyroscopic precession to students.

GREAT EDUCATIONAL TOY