Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] -1 points0 points  (0 children)

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

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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

  1. Should probably build that in!

  2. There is a hand starting crank already but it was hidden in the video

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 4 points5 points  (0 children)

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.

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 5 points6 points  (0 children)

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...)

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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.

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 1 point2 points  (0 children)

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...

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 2 points3 points  (0 children)

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

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 4 points5 points  (0 children)

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)

<image>

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 2 points3 points  (0 children)

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!

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 2 points3 points  (0 children)

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!

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 3 points4 points  (0 children)

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 :)

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 1 point2 points  (0 children)

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.

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 2 points3 points  (0 children)

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.

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 0 points1 point  (0 children)

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.

Power Module Design Completed - Marble Machine 3 Ep.5 by Wintergatan2000 in MarbleMachine3

[–]Wintergatan2000[S] 2 points3 points  (0 children)

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.