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What an amazing and fun journey. I love seeing each new top and what improvements you come up with. I suggest no knurling as it is not very aero. If traction is an issue, try wearing a rubber glove or fingertip cover.

I have to say I don't like the look of the titanium rod, would look much better as a single continous part. Have you considered using stiffer aluminum alloys like 7005?

Use a sapphire watch face for the base, then the carbide wont harm it. Edit: Hey it looks like you already did. :D

interesting , would a watch jewel make a good bottom bearing , synthetic ruby from memory .

always a pleasure to see these videos

Incredible achievement as always :D the curve below Mk. 23 looks so cool!

The internal reflection reminds me of the Chicago Cloud Gate (Bean)

Is the new material for the base... Sapphire?

mainstream popularity if you add blades and battle them, is my hot take

What about using a denser and smaller flywheel. would you not be able to get higher speeds if you used a highly polished copper or silver? Tungsten?

Have you considered trying osmium alloys for the tip?I know it's used in making high grade fountain pen nibs and it may be suitable for this purpose as well

Absolutely fascinating! What about using magnets plus some electronics to start it without hands?

Love it

If you're trying to polish certain parts, you can consider using methods from jewelery making / gemstone grinding, where artisans use shellac or other types of resins to glue already finished parts to some other piece that you can then mount in your lathe or any other tool. This methods allows you to mount any weirdly shaped objects relatively solidly. If it is done right, you can remove it again without leaving any residue on the surface, or residues that you can remove using solvents. I'm however definitely not an expert in this, maybe someone else can help out.

Your dedication is admirable. Keep up the good work!

What a journey! It might be cost prohibitive but what about jewels for the tip or base? Like rubies and sapphires in watch movements?

Could you sidestep the micro-drilling problem of a hard tip by using two self-lubricating surfaces? Something like graphite maybe.

Thanks !!

Amazing achievement. Using CNC is definitely the way to go! You are definitely taking this to the next level. Keep going.

Damn! Polished crystal for a future base?

Would an aerodynamic bearing have even less friction and make a top that spins even longer since there is no physical contact?

I wonder what is the longest mechanical assisted spin?

This is what the algorithm likes with the right title and thumbnail.

Tôi muốn mua spinning top

Fantastic! A video of you making the top would be great. Did you make it on a manual lathe? Looks like a fun project. I'm going to make a few tops for my grandkids. I have 1-1/2" (50MM) brass and aluminum. Hardened bearing balls are cheap for the tip. How can I make a base without fancy materials? I can't make a big radius on the base either with a manual lathe unless I make a ball turner tool. Maybe I'll just polish a piece of brass for it to spin on, or make a base with a stem and use a ball mill to make the pocket.

Would dimpling the sides like a golf ball reduce drag?

And thé earth is spinning at 666mph in two directions ... Bullshit, the plan-ete is stationnary

HIGH PERFORMANCE! Has anyone noticed that a top can spin much longer and up to twice as long if its not being observed. No cameras or recording devices or anything that can be considered a recording device such as a tv or radio or tape recorder, etc. can be in the room or used outside the room visible or not or it wont work. Must have any windows and mirrors completely covered or wont work. Door must be closed and lights shut off. You can only know when it stops from the sound it makes when stopping as personally heard from outside the room or to see that it has passed the normal stopping time when checking, in which case it will stop spinning immediately afterwards. I discovered this by accident and yet to turn it in to the science community to be read and tested by peers. How a top knows when is is being watched or recorded is beyond me to answer, but it does.

Did you make the spinning top? I have to make a 25/30 min spinning top and do you have some tips for that?

For somebody thats got a great mind i could not hear what you was saying because that music .

I spin my kayak , same idea . Keep going strong

Absolutely beautiful, I've been wanting a tungsten top for a bit now and yours is mesmerizing.

I'm glad you find joy in such a simple toy, kids these days want all the latest stuff. Your a credit to your parents.

Cool if you make one who spinns for exactly 1 hour and use it as a timer

How did i get here?

Maybe this is a dream.

It's enough time to see earth rotation

Now wrap a string around it and give it a pull, like a gyroscope. It would probably spin for hours.

i love the undying dedication to making metal spin for a really really long time, they really are quite beautiful as well. I'm curious as to what kind of considerations you put into the nurling, is it a source of drag because of the ridges? or does not really effect the spin time as much? regardless really neat stuff you do, super fun to watch the times keep creeping up and up :)

Wow!! Great work and good job

That's top shelf

Whats the longest youve got with a standard small spinning top with just a single spin by hand

Is it just me that feels like hiding the tip in this strange extra device feels like cheating? It's hard to see what is actually going on down there

You should spin it between tour hands

Really annoying background music.

Hello, great toy! May I make you few suggestions? Try to use ruby tips or diamond tips (ruby like the one they use in the watches). I think this may improve the time a little bit.

Gonna be hard to top that....

There were some South Park unbelievers who called it a dreidel

How much time do you think you can gain if you spin it in a vacuum on a magnetic device ? No surface / air friction it could last for hours and hours 🎉

Go to Malaysia. They have a traditional game in Kelantan called “gasing”, been played for hundreds of years. They compete who’s gasing can spin the longest. Similar shape to yours but made of wood mainly, but bigger. They can spin over 2 hours, Yes over 2 hours. but never claimed or never been recorded as world record. Do your research. Google “ gasing kelantan”