# Why no bimetal Shutter?

**URL:** <https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161>\
**Category:** General Yo-Yo\
**Created:** [September 18, 2018, 5:20pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161 "2018-09-18T17:20:29Z")\
**Posts on this page:** 20\
**Page:** 3

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**Author:** ![JWaugh](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jwaugh/32/42366_2.png) [@JWaugh](https://forums.yoyoexpert.com/u/JWaugh)\
**Post date:** [January 25, 2019, 8:39pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/41 "2019-01-25T20:39:55Z")

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It doesn’t look like a Shutter though, I mean, it looks like it has the inspiration, but the cuts are different and it just looks like Gentry is moving on with a new yoyo.

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**Author:** ![threebearrries](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/threebearrries/32/42073_2.png) [@threebearrries](https://forums.yoyoexpert.com/u/threebearrries)\
**Post date:** [January 25, 2019, 9:01pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/42 "2019-01-25T21:01:16Z")

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What? It looks almost exactly like a Shutter with steel rings added.

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**Author:** ![anon5341354](https://avatars.discourse-cdn.com/v4/letter/a/3ab097/32.png) [@anon5341354](https://forums.yoyoexpert.com/u/anon5341354)\
**Post date:** [January 25, 2019, 9:01pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/43 "2019-01-25T21:01:56Z")

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> [@zslane](#):
>
> That’s a bimetal, sure, but with those rings so far away from the outer rim, I’m not sure I see the point in having them. :thinking:

The same point as any bimetal; it adds concentrated weight in the desired area

I wish there were a lot more bimetals designed like that with the rings further in. You just wait and see, this will play super fast and obey your every command.

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**Author:** ![zslane](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/zslane/32/19816_2.png) [@zslane](https://forums.yoyoexpert.com/u/zslane)\
**Post date:** [January 25, 2019, 9:21pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/44 "2019-01-25T21:21:06Z")

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That ring placement reminds me of my Space Cadet, and given the direction that bimetals went in the years that followed, it seems like mid-positioned rings were just a developmental stepping stone towards edge rims, rather than an enduring design choice driven by player/consumer demand.

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**Author:** ![YoYoExpertGarrett](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyoexpertgarrett/32/1543_2.png) [@YoYoExpertGarrett](https://forums.yoyoexpert.com/u/YoYoExpertGarrett)\
**Post date:** [January 25, 2019, 9:26pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/45 "2019-01-25T21:26:07Z")

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I dunno, the Edge was pretty popular and it had about the same ring placement as the Space Cadet.

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**Author:** ![zslane](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/zslane/32/19816_2.png) [@zslane](https://forums.yoyoexpert.com/u/zslane)\
**Post date:** [January 25, 2019, 9:29pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/46 "2019-01-25T21:29:59Z")

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The Edge is considerably wider, putting that SS ring weight further away from the center of the yoyo than on a Space Cadet. It is far more “edge weighted” than a Space Cadet as a result.

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**Author:** ![codinghorror](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/codinghorror/32/8052_2.png) [@codinghorror](https://forums.yoyoexpert.com/u/codinghorror)\
**Post date:** [January 25, 2019, 9:32pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/47 "2019-01-25T21:32:26Z")

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We don’t know if this bimetal will be a Wide Angle shutter or not. I suspect it will be, personally.

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**Author:** ![zslane](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/zslane/32/19816_2.png) [@zslane](https://forums.yoyoexpert.com/u/zslane)\
**Post date:** [January 25, 2019, 9:33pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/48 "2019-01-25T21:33:59Z")

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Ah, well, in that case the ring placement is probably where it is so as to prevent the yoyo from being _too_ stable, i.e., too difficult to nudge off plane on purpose.

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**Author:** ![anon5341354](https://avatars.discourse-cdn.com/v4/letter/a/3ab097/32.png) [@anon5341354](https://forums.yoyoexpert.com/u/anon5341354)\
**Post date:** [January 25, 2019, 9:34pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/49 "2019-01-25T21:34:53Z")

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> [@codinghorror](#):
>
> We don’t know if this bimetal will be a Wide Angle shutter or not. I suspect it will be, personally.

I don’t think it will be a regular or Wide Angle Shutter, but something new.

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<div class="post-metadata">

**Author:** ![anon5341354](https://avatars.discourse-cdn.com/v4/letter/a/3ab097/32.png) [@anon5341354](https://forums.yoyoexpert.com/u/anon5341354)\
**Post date:** [January 25, 2019, 9:35pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/50 "2019-01-25T21:35:45Z")

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Mid weights tend to be faster and easier to push around.

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**Author:** ![MarkD](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/markd/32/40845_2.png) [@MarkD](https://forums.yoyoexpert.com/u/MarkD)\
**Post date:** [January 25, 2019, 9:49pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/51 "2019-01-25T21:49:51Z")

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> [@zslane](#):
>
> Ah, well, in that case the ring placement is probably where it is so as to prevent the yoyo from being _too_ stable, i.e., too difficult to nudge off plane on purpose.

One important aspect is that weight closer to the string plane (regardless of distance from the axis) makes it easier to get a smooth throw. This has to do with the principal axes of rotation of the object - you need the moment of inertia around one to be very high (around the axis) and the other two to be much lower. This is why the weight placement on the Edge is so clever, along with its W profile - it accomplishes two things at once (high rotational inertia on the primary axis, but still relatively low on the other axes) while still allowing a wider catch zone.

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**Author:** ![JWaugh](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jwaugh/32/42366_2.png) [@JWaugh](https://forums.yoyoexpert.com/u/JWaugh)\
**Post date:** [January 25, 2019, 11:18pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/52 "2019-01-25T23:18:54Z")

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That one tall cut is rounded now, the ring has made the other cuts look smaller and more minute, when we get the specs I will probably be dead wrong but whatever.

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**Author:** ![Dalex](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/dalex/32/43290_2.png) [@Dalex](https://forums.yoyoexpert.com/u/Dalex)\
**Post date:** [January 26, 2019, 7:13pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/53 "2019-01-26T19:13:43Z")

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Aparently, Instagram followers have declared that the bimetal shutter is called the “butter”.

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<div class="post-metadata">

**Author:** ![JWaugh](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jwaugh/32/42366_2.png) [@JWaugh](https://forums.yoyoexpert.com/u/JWaugh)\
**Post date:** [January 26, 2019, 8:08pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/54 "2019-01-26T20:08:12Z")

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lol ikr.

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**Author:** ![noodles](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/noodles/32/36467_2.png) [@noodles](https://forums.yoyoexpert.com/u/noodles)\
**Post date:** [January 28, 2019, 4:08am UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/55 "2019-01-28T04:08:02Z")

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aye anyone remember this video?

[![](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/c/8/4/c84b201aa1a30a76da9fdfd0dc9446dc3eb6fa8e.jpeg "New Yoyofactory Shutter and Replay Colors!") ](https://www.youtube.com/watch?v=JddoXHH7rN4)

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**Author:** ![feryuweryu](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/feryuweryu/32/42092_2.png) [@feryuweryu](https://forums.yoyoexpert.com/u/feryuweryu)\
**Post date:** [January 28, 2019, 4:20am UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/56 "2019-01-28T04:20:51Z")

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Butter plans started in 2016 confirmed! 🤣

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<div class="post-metadata">

**Author:** ![noodles](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/noodles/32/36467_2.png) [@noodles](https://forums.yoyoexpert.com/u/noodles)\
**Post date:** [February 22, 2019, 9:50pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/57 "2019-02-22T21:50:09Z")

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Sike bois it is just a polished rim

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<div class="post-metadata">

**Author:** ![feryuweryu](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/feryuweryu/32/42092_2.png) [@feryuweryu](https://forums.yoyoexpert.com/u/feryuweryu)\
**Post date:** [February 22, 2019, 10:15pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/60 "2019-02-22T22:15:59Z")

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![SmartSelect_20190222-141357_Instagram](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/9/c/e/9ce39a843bab0e8d874d541c2049140b6db749af.jpeg)  
latest post from Gentry, probably not a bimetal.

Anyway gonna grab one from Gentry’s stand tomorrow!

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**Author:** ![Applepooh](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/applepooh/32/40751_2.png) [@Applepooh](https://forums.yoyoexpert.com/u/Applepooh)\
**Post date:** [February 22, 2019, 10:17pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/61 "2019-02-22T22:17:00Z")

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Just cosmetic. Polished.

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**Author:** ![Sinister\_Yoyos](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/sinister_yoyos/32/114006_2.png) [@Sinister\_Yoyos](https://forums.yoyoexpert.com/u/Sinister_Yoyos)\
**Post date:** [February 22, 2019, 10:25pm UTC](https://forums.yoyoexpert.com/t/why-no-bimetal-shutter/293161/62 "2019-02-22T22:25:47Z")

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If you read the description on a different yoyo store site you’ll see that it says they don’t need steel rings, the new MVP allegedly proves that. In the picture it says “bimetal style design.” You’d think that if it was an actual bimetal they wouldn’t have classified it as bimetal style design. I’m not certain, but it looks to me like it’s just a regular Shutter Wide Angle with shiny bits. Also, you’d think that a bimetal Wangle would be more expensive than the OG Wangle.

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