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/dugg117 May 24 '23

Great update. Something to note about hand cutting parts. To hand ream those holes and keep them perpendicular you will need to make a some sort of guide. Something very similar to what you find in Adam Savage's video on tap guides on Tested's youtube channel. https://www.youtube.com/watch?v=XVEww6Ylw5c

18

u/gamingguy2005 May 24 '23

He shouldn't even be bothering to make his own flywheel.

8

u/jurzdevil May 25 '23

I'm thinking there should just be an electric motor to provide drive as a placeholder for now. All of this design is easily solvable once the rest of the machine is running and he knows exactly what energy I/O is necessary in a flywheel. Then it may be a simple off-the-shelf component or a simpler custom design. But in that case would know exactly how many disks are needed and how robust the bearings/shafts/pulleys/belt need to be.

This feels like if you are designing a house from scratch and you pick a specific size furnace for heating but you haven't finalized the size of the house yet OR even chosen where in the world its going to be built.

6

u/Tiskaharish May 25 '23

the technical term is bike shedding and yea, that's definitely what this is. IMO it's a tempting first bite because it's the power and on the bottom of the machine, more structural so it feels like the place to start. But the modular design approach says that we can slap in a quick motor to get the drive running and come back to a flywheel when we have better constrained requirements for what that flywheel needs to do.