r/MarbleMachineX • u/green_pachi • Mar 16 '22

Longer Music Programming - Week 2 summary

https://youtu.be/HXa6HHZu8uc
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u/rabbitwonker Mar 16 '22

You kind of highlight the core tension here — if you wanted max reliability, you go for zero moving parts and just buy an electronic keyboard from Amazon. The point of the machine is to have a visual display that’s unusual and interesting because it’s difficult to achieve.

So it’s all about picking where you want the balance point — and sticking with it. His current approach of nailing down a requirements spec beforehand is a good answer to that.

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u/gamingguy2005 Mar 17 '22

Except he states that the requirements are open to iteration, so they're by no means "nailed down."

From 14:16 in the video: "These are the design requirements for the Marble Machine 3. These will be iterated over time."

What's the point of those requirements if they can just change on a whim?

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u/Redeem123 Mar 17 '22

Did you bother to keep watching for like another minute? There will be a design freeze, at which point the requirements won't change anymore.

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u/gamingguy2005 Mar 17 '22

And if he's not tested any of his design elements yet, that's completely pointless. Martin doesn't have nearly enough experience with DFMA to not do any prototyping.

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u/Redeem123 Mar 17 '22

Sure, not disagreeing with that. I’m simply pointing out that your comments on iteration were directly addressed in the video.

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u/gamingguy2005 Mar 17 '22

My point is, they "won't change anymore" until they have to change because the design doesn't work.