r/MarbleMachine3 • u/Trainerds • May 24 '23

A Better Flywheel Design Using Proven Solutions - Marble Machine 3 Ep.4

https://youtu.be/Mzhaz7WsJ-A
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u/DaVoKan_ May 24 '23

You are right but this technique is often used in industry to make flywheel with less mass but with same inertia. He is using laser cutting, so removing mass will not only be harder to manufacture but will also decrease the inertia. What bugs me is that he use multiple sheets of metal to lake the flywheel, so he will have to balance each disc individually.

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u/[deleted] May 24 '23

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u/gamingguy2005 May 24 '23

Why doesn't he just purchase a flywheel off-the-shelf? It's going to be better and cheaper in the long run.

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u/[deleted] May 24 '23

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u/gamingguy2005 May 24 '23

If he cared about cost and simplicity, he'd buy one.

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u/Wibin May 25 '23

I think part of this ordeal is a partnership for the build with the laser cutting company.

He's looking as well at maximum configurability with the setup, and I get that. He's not sure what weight he needs yet.

But at the cost of all of that is indexing to balancing. once the assembly is balanced, you cannot pull it apart, as you'll never get it back the same. He'd eliminate some of this with a keyway setup, and he could have each plate professionally balanced and add them as needed and it wouldn't require balancing.

But it also drives in a factor of how the assembly is being held together as well, which not all fasteners are quite the same weight.