# Idea for Yoyo design
**URL:** https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268
**Category:** General Yo-Yo
**Created:** [August 25, 2024, 6:24pm UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268 "2024-08-25T18:24:22Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Moxilicious](https://forums.yoyoexpert.com/u/Moxilicious)
#### Post date: [August 25, 2024, 6:24pm UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268/1 "2024-08-25T18:24:22Z")
I have an idea for a tri-metal yoyo, but have no idea if it’s good or how to make it. My idea is to have tungsten surrounded by titanium for the outer rings
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### Author:  [@K1LCr09](https://forums.yoyoexpert.com/u/K1LCr09)
#### Post date: [August 25, 2024, 6:26pm UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268/2 "2024-08-25T18:26:30Z")
You should start by looking at other tri metal yoyos like Trion Crash.
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### Author:  [@hobbygod](https://forums.yoyoexpert.com/u/hobbygod)
#### Post date: [August 25, 2024, 8:43pm UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268/3 "2024-08-25T20:43:00Z")
It’s gonna be a little guy
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### Author:  [@YFG](https://forums.yoyoexpert.com/u/YFG)
#### Post date: [August 26, 2024, 11:06am UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268/4 "2024-08-26T11:06:20Z")
Tungsten is really heavy, and it’s hard and brittle making it difficult to machine.
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### Author:  [@Captrogers](https://forums.yoyoexpert.com/u/Captrogers)
#### Post date: [August 26, 2024, 12:15pm UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268/5 "2024-08-26T12:15:12Z")
What I’m reading is expensive.
I’m guessing your saying aluminum body, tungsten inner ring and a titanium outer ring? Hence the tri metal.
In theory that would work. Add a bunch of rim weight and protect the brittle tungsten a bit. You could probably do better going the tungsten covered in a Polly shell route as well.
Either way it would be an expensive YoYo to machine the rings for.
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### Author:  [@Splizacular](https://forums.yoyoexpert.com/u/Splizacular)
#### Post date: [August 26, 2024, 12:36pm UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268/6 "2024-08-26T12:36:29Z")
out of curiosity was there anything specific that drove your choice in tungsten? I’m completely ignorant and was wondering if there was a goal in using it specifically
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### Author:  [@Moxilicious](https://forums.yoyoexpert.com/u/Moxilicious)
#### Post date: [August 27, 2024, 12:06am UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268/7 "2024-08-27T00:06:42Z")
I mean, I kinda wanted to use tungsten because it’s so heavy that I wouldn’t have to use much of it
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### Author:  [@jhb8426](https://forums.yoyoexpert.com/u/jhb8426)
#### Post date: [August 27, 2024, 5:45am UTC](https://forums.yoyoexpert.com/t/idea-for-yoyo-design/408268/8 "2024-08-27T05:45:41Z")
Bi-metal yoyos are difficult enough to make into a quality product at a reasonable price. Why complicate it with a tri-metal design?