I think that concept could be a winner and you should continue to explore. That could be a game changer.
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Gotta make sure you keep your credit cards away from it! At least if it is the kind with the magnetic strip and not the chip.
(But I love the idea of magnetic axles…)
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They are neodymium. Is there anything stronger?
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What does it do to your credit cards? Erase your funds?
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No, but maybe get bigger ones? If neodymium isn’t adequate, you may be out of luck.
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I could go with 1/2 magnets instead of 8mm. That could do the trick.
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Yea, increasing the contact area should help quite a bit. But as far as magnet composition, neodymium is the best.
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I just don’t want to increase the weight too much either.
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Magnets work best when you increase the contact area, so thinner neodymium pucks would work if you can find them. But the real test is still down to trying it. I imagine a hard throw will disturb the connection just a little bit regardless, but maybe not (preventingslack by a tight wood fit). Its definitely one of the more interesting yoyo experiments I’ve ever seen and am very interested to see how it works out.
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It will scramble/erase the data on the magstrip, just like erasing data off of magnetic tape or old computer disks. For credit cards that must be swiped, rather than inserted into a chip-reader, that magstrip is essential.
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One cool thing about the system is that the whole yoyo works as a magnet. You can stick it k your fridge:
Your bandsaw:
Your lathe:
And even your bike. Kinda handy! Haha
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What about using the spin created power or batteries to make an electromagnet! 
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I’ve figured out a way to make it work. Pretty sure the next prototype will be a winner.
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Excited to see this! What an outstanding idea Glen!
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I now just to have to wait like 3 weeks for my magnets to arrive in the post.
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I was going to like this post, but that really isn’t my emotion. Can I ask what you came up with? I really like the idea of this. Put me on the wait list!
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You shall see when I’ve made it. 
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lmao
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North American woods are just so lovely. Many have such fine textures and beautiful and subtle grain patterns. Australian woods mostly seem to exhibit rugged, sundrenched unyielding toughness and are very heavy for yoyo making. Most woods worth using for a yoyo are North American. It’s so hard going past Oak, ash and maple. Walnut is beautiful too. Here’s a walnut one.
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American walnut tree: come and read a book under my leafy shade and enjoy! Family memories can be made here."
https://images.app.goo.gl/mhGqMys4WZF6wgps7
Australian gidgee tree: 'No water to be found here, feel free to sit down and die under me. I’ll try my best to shoo the dingoes away from scavenging your parched corpse."
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