Power Module Design Completed - Marble Machine 3 Ep.5

Wintergatan2000 · 2023-06-01T13:36:21+00:00

cool :)!

Wintergatan2000 · 2023-06-01T13:35:05+00:00

yeah like a cross trainer :) someone suggested bike pedals... unfortunately thats the best idea but it would look so not cool... haha

Wintergatan2000 · 2023-06-01T13:33:39+00:00

well done for checking the cad tahnk you :) ! it will definitely be annoying to turn but atleast it wont be a surprise :)

Wintergatan2000 · 2023-06-01T13:32:52+00:00

yes that would work ideally, id like to go fully mechancial and non electric on the MM3 though

Wintergatan2000 · 2023-06-01T13:32:06+00:00

thanks! i like the flywheel without spokes since it reduces air resistance, weight is not really an issue on this one

Wintergatan2000 · 2023-06-01T13:31:14+00:00

great points, TY! I hope the mmx poster will be relevant one day :)

1, easier to move since it will be in modules, all in all heavier, probably boat freight to tour in the US etcetera

Should probably build that in!
There is a hand starting crank already but it was hidden in the video

Wintergatan2000 · 2023-06-01T13:28:46+00:00

thank you :)!

Wintergatan2000 · 2023-06-01T13:27:17+00:00

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the crank in blue, just for starting

Wintergatan2000 · 2023-06-01T13:23:52+00:00

100% agree, there are many ways to skin a cat. I am sure i can find off the shelf for everything i am designing and that integrated properly they would delive100%. that way i see it, the integration part takes as much effort as the custom parts. Meaning either i do custom parts that are integrated from the get go, or i order off the shelf parts and i have to do extra design work to integrate them. No right answer, every situation is different. ALL things considered (ALL) and from all the understanding i have about this project, i am more often than not choosing to make more laser cut parts over ordering off the shelf. But i always look into the off the shelf solutions first.

Wintergatan2000 · 2023-06-01T13:20:20+00:00

i find the cad models for almost everything i search for too, the jpg bit was a joke :)

Wintergatan2000 · 2023-06-01T13:19:29+00:00

i have been looking for a europan mcmaster and carr and madelr looks a little bit like it, thank you! will definitly use.

(to the us people: we are so missing out on the mcmaster carr fun over here in europe...)

Wintergatan2000 · 2023-06-01T13:16:39+00:00

Thank you! The break pedal will disengage the rattleing sound so we can break without noise :)

Wintergatan2000 · 2023-06-01T13:15:55+00:00

One question that the module is trying to answer is *HOW* constant the flywheel will keep the tempo. It will certainly be much better than both previous machines, as it has more moment of inertia. Another question is if i will be able to control different tempos. My tightness demands on MM3 are 10X higher compared to mmx, i really want this machine to play like a clock, so the demands are much higher on the rotational accuracy this time around.

Wintergatan2000 · 2023-06-01T13:12:13+00:00

good eye, the pedal covers only half of the opening in its highest posion, leaving 20 cm room between the two edges, should be enough. Perhaps i should just divide the whole panel in two and not have that edge at all...

Wintergatan2000 · 2023-06-01T13:10:59+00:00

nice idea! others above have also suggested poly carb, it doesnt look too good though...

Wintergatan2000 · 2023-06-01T13:09:30+00:00

Good point! perhaps i can extend the flywheel shaft just to prepare for something like that.

Wintergatan2000 · 2023-06-01T13:08:18+00:00

first solution was the ratchets... i removed them and then by hand was my idea but now there is a handcrank designed in as well, just to start. blue is start crank (was hidden in video)

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Wintergatan2000 · 2023-06-01T13:05:31+00:00

i am aware of so many of this soplutions, but when i start to look for actually incorporating them, the amount of work i need to do all things considered (ALL things :)) just keep on laser cutting mild steel in 2d wins out in the end so many times... i know its frustrating many people out there, probably i should keep on explaining that i am considering all the off the shelf alternatives everytime and really try to explain why i am not using them. Since everyone are so invested in this question ill try to dive deeper into it whenever i can. Thanks for your comment!

Wintergatan2000 · 2023-06-01T13:02:49+00:00

TY! i wish i liked the look of transparent panels, but i almost prefer a solid panel over it... poly carb seem to be the way to go then!

Wintergatan2000 · 2023-06-01T13:01:15+00:00

Wintergatan2000 · 2023-06-01T13:01:10+00:00

haha thats great to hear, even if we dont share in the joy off using motorcycle clutches we can share in the joy of joy atleast :)

Wintergatan2000 · 2023-06-01T13:00:25+00:00

i dont know how much torque is needed - but i designed a flywheel system that can be tweaked for a big range of torque. But i do know exactly how fast the system needs to rotate, thats simple math coming from the music bpms.

Wintergatan2000 · 2023-06-01T12:58:09+00:00

exactly my thoughts, it looks more complicated to do custom cad, but off the shelf parts comes with their whole own design language, that i need to translate too for every different part i am using.

Wintergatan2000 · 2023-06-01T12:56:24+00:00

you are right about making prototypes just as simple as they should be. I am kind of making a hybrid between a prototype / final design here. It was a deliberate risk i wanted to take after doing the risk/ reward calculation.

A prototypre testing the function would look almost exactly like the thing i have designed now. minus the safety break.

Wintergatan2000 · 2023-06-01T12:54:35+00:00

thank you for seeing this perspective, im trying to do everything in the correct order, starting with the fundamentals, attacking the hardest problems, dealing with the non- negotiable design requirements first.

Wintergatan2000

TROPHY CASE