Yoyo CAD & Prototyping Adventures

Can someone tell me if this design is viable? The hub is made of aluminum, and the body is plastic, press-fit onto the hub. Kind of inspired by the H5 Leaf, although I’ve never tried that yoyo myself. Thanks!

This will probably fly apart.

Ideally you have one metal part on one side of the plastic (the hub and bearing post) and one metal part on the other side of the plastic (the bearing spacer). The bearing post goes through the middle, and the screw pulls it together.

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Thanks, this is what I had thought. But from pictures of the H5 Leaf, it looks like the hub is just a single piece of aluminum, with the plastic sitting on top, so I thought I might try something similar. Does anybody own that yoyo and can confirm how it’s constructed?

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I know it’s possible to make designs like that (iceberg has a single piece hub also), but not how you’ve drawn it. On the iceberg at least there’s all sorts of stuff going on internally that you can’t see without cutting it in half.

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@GTDropKnot Henry gots one

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It looks to be a concave slitted section that holds the single piece hub in. It looks like it’s pressed through the inside of the cup and is kept in place by the retention groove

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Yah it looks like this ^ . Just checked mine

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Thanks guys!

Well, I changed my mind

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I would love to cast these for you if you rather try that.

I’m actually working on casting a few right now and was looking for folks to help me R&D.

My biggest issue so far is balancing and how to ensure I do it properly.

hi guys, an update on this prototype

the carbon fiber didn’t form correctly at the inner wall for the pads and you can see lots of small air bubbles as well as big ones

this is fresh out of the mould, the flashing are easy enough to remove

the other half, same defect, but the carbon fiber filled more of the silicone pad wall

so many trapped air bubbles, the pinkish white stuff is plasticine i use to highlight the air bubble crater

the other half got less trapped air bubbles, but they’re still there

the weight ring tolerance is too tight, i’ll redesign the ring to be glued on instead.

the weight of the halves is 7.8 grams, and 8.1 grams for the other… something definitely went wrong here, i don’t know what though

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What process is this?

Looks like forged carbon. I’ve seen it used for watches before.

Would it be possible to mould it in a more general yoyo shape and then machine it?

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compression mould carbon fiber

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forged carbon fiber’s best properties is that you can make a solid 3d part straight from a mould, there’s absolutely no reason to add extra steps to complicate the process

Amazing stuff!! Love the weight!