Martin, in trying to find a reason to quit the marble machine, keeps accidentally discovering the perfect solution to his problems.

@peterjohnson9438

6 ай бұрын

Martin keeps discovering everything taught in mechanical engineering school, the hard way. On the plus side, doing it this way means he'll retain all the lessons. When he's done with this project, he should consider fast-tracking a degree from a technical college.

@thomasbecker9676

6 ай бұрын

@@peterjohnson9438 Press 'X' to doubt.

@quakxy_dukx

6 ай бұрын

In a way, this is raw science. He’s discovering fundamental principles through experimentation.

@Tsagan

6 ай бұрын

@@peterjohnson9438 I guess the difference will have been between learning and understanding. Having experienced the pain for each and every principle, Martin would have pretty much grokked mechanical engineering by the time he is done.

@bubblesculptor

6 ай бұрын

​@@Tsaganlearning the 'hard way' usually means you truly understand, vs superficially studying for exams.

As a musician myself: It's always a bit painful to hear him say the first Marble Machines "failed". They did not. Especially the first one. It did everything it needed to. It played music, it felt authentic because it wasn't perfect. It had a lot of charm, it had a lot of passion and you could feel it. It wasn't perfect by any means and it never had to be. Just one instrument has caught so much attention, so many fans, and to this day, it is one of the most watched and most genuinely liked videos on the internet. Basically the whole internet knows the Marble Machine song. It moved people, made them think, feel. THAT is music. That's what it is all about. Then came MMX, which was started with a vision, and sparked a lot of hope in the fans for more marble machine music. And that hope is still there. In my eyes, the marble machines did not fail at all.

@twentysEvan

6 ай бұрын

I have struggled with this too. It may be true to say that neither earlier machine could perform in the way he imagined (consistent, live), and perhaps (?) required a fair bit of post-processing to sound good, but as a viewer it's jarring to hear him criticize the carrot that drew us here in the first place. And frustrating that he’d (a videographer) imply this with blanket criticism instead of showing it. Listening, I feel a bit like I’ve stumbled into a cult where I’m repeatedly told to leave my past behind, haha.

@twentysEvan

6 ай бұрын

Maybe others have this same experience, but I catch myself thinking things like “there’s a better way to tell this story” and then remembering this is largely someone’s real life, without the benefit of a known narrative arc. Despite the present focus and goals Martin forefronts, the real “story” - as it is - is only visible in retrospect.

The change from "i believe" to "i verify" is symbolic of martin learning to be a true engineer. Mm3 will be successful

@thomasbecker9676

6 ай бұрын

He's nowhere even close to being an engineer. MM3 will most likely *not* be successful, unless the goalposts move to make it so.

@notead

6 ай бұрын

@@thomasbecker9676 Did you forget to include the motivation behind this assertion or was it deliberately meant to be read as meaningless opinion?

@D3nn1s

6 ай бұрын

​@@thomasbecker9676wow you are truely a negative person wtf haha

@thomasbecker9676

6 ай бұрын

@@Josh_728 Martin isn't going to sleep with you, just because you simp for him.

@thomasbecker9676

6 ай бұрын

@@notead Please see all of MMX through the eyes of an actual, experienced engineer.

I like your idea for the new wheel but I have one suggestion, either use a regular endmill or a slitting saw to cut a small section from the bottom of the circular groove. The ball endmill will have trouble cutting at the bottom of the ball because the radius of the cutter goes to zero with respect to the rotating axis, meaning that point on the ball will essentially drag across the material and cut poorly leaving a bad surface finish.

@Nbec95

6 ай бұрын

If it's mechanically possible on the CNC, he could maybe also angle the spindle so that it leans away from it's direction of movement. That way the point where the ball would drag would be a bit in front where the material will be removed anyway.

@danieltandello5074

6 ай бұрын

Up

You will definitely want to test the machining of that long slot it may be a lot more challenging than you think. Chip evacuation will be very important if you intend on using a spherical tip mill. The type of cutter that you showed is not designed to cut plastic at all and will likely clog and break either the cutter or the work piece. The cutter shown is called a rotary bur and is used to contour metal by hand and is notorious for clogging. You would be far better off cutting a groove with a ball nose end mill and then gluing the bar in place. Pressing in a very long and thin metal rod into a long hole will be VERY challenging to get right with a press fit. Most press fits do not go longer than about 10:1 aspect ratio of length to diameter, or you will have problems of bending the "pin" due to every increasing friction of the press fit. Too loose, and it will slide in easy, but you will have to secure it with glue anyway. That would be preferable to the press fit in my book.

@NPerillo

6 ай бұрын

Yeah a slot with a ball mill is a much more feasible idea. Chip clearing will be near impossible unless there is a pre cut slot like when machining a dovetail. The proposed machining steps should also be reversed so there's more room for chip clearing between programming profile slots. Instead of glue, he could clamp the bars down with a bunch of printed straps or saddle clamps.

@garysmcdermott

6 ай бұрын

I suspect that he will need to insert the rod longways and not click it into place, because you will have two plastic pieces playing tug-o-war and if the slot on the wheel "loses" the rod can be pulled out of position. In addition, the slots on the wheel will face degradation over time, due to repeated programming changes, and loose their solid grip on the rod

@ameunier41

6 ай бұрын

​@@NPerilloI think it's the best way, just cut a grooves to hold the rods in place and secure them with metal straps that go around the wheel

@WafflesASAP

6 ай бұрын

The press fit thing felt weird to me, too. Over time, clipping the profile parts in and out is likely to expose an imperfect fitment on at least _one_ of the bars, having the thing pop out when trying to remove one of the profiles. I want to see the design work, but I'm not sure about a press fit.

I think you're going to find that your timing mechanism will not hold up under load. You really need to make an oscillating escapement to keep tight time or you will always be fighting against the influence of the mechanism drag effecting your timing. If you want your machine to run like a clock you need to make a clock.

@kayakMike1000

5 ай бұрын

excellent point, my metronome I practice with agrees with you.

The amount of force needed to push the rods in seems like the hardest (ha) part of this new design.

@twardnw

6 ай бұрын

yeah, I have concerns with how much force that is going to take, that's gonna add up to be a lot of friction

@FloLedermann

6 ай бұрын

Why not slot them in from the side?

@twardnw

6 ай бұрын

​@@FloLedermann the further it's pushed in, the more resistance there will be. And in order to keep the position accurate (and thus tight timing), it will need a fairly tight fit. We'll see what he comes up with :) Hopefully does a test-run of a slice of the programming wheel before committing to whole thing

@insertnamehere1044

6 ай бұрын

@@twardnw if they’re hard to push in sideways, he can break the rods and do it in pieces. The accuracy should still be there since that’s driven by the holes’ accuracies

@MysticalSkyMonkey

6 ай бұрын

Could he not use many smaller rods instead of one long rod across the whole length of the wheel? Each small rod could have a tight fit without having to apply a colossal force. Might take a while to assemble

At this point, Martin is going to just end up building a clock with some instruments lmao

MARTIN, don't forget, that varying marble troughput trough instruments will put varying load on marble lifting mechanism, which will deviate marble machine speed since you will be inputing constant force via huygen drive. Less marble troughput, smaller load on the machine, machine speeds up. Loads of marbles to lift, heavy load on the machine, machine slows down

@PermireFabrica

6 ай бұрын

That's what I'm thinking ever since Martin told the first time he discovered the huygen drive. The drive inputs mostly a constant force and the speed results from the force balance. However, the governor adds a bit of a speed regulation since its breaking force is quadratic proportional to the speed. But I don't think it can keep up with such dynamic loads and precision Martin asks for!

@MisterHieronymus

6 ай бұрын

He can always just use another power source for the marbles. Or not at all. Just have enough of them and let gravity do all the work.

@RobFarley74

6 ай бұрын

Honestly there was an electric motor on the mmx, personally I'd do away with all that complexity and just brute force it with a motor and gearbox, no need for a dangerous flywheel, governor etc and it'll be laser accurate because geared down enough they'll be more torque than you'd ever need

@br52685

6 ай бұрын

@@RobFarley74It’s simply a “dumb design requirement” for this thing to be mechanically/human powered, instead of using a motor.

@kontrolledkhaos4853

6 ай бұрын

To solve that is to mangage a gear ratio

The design of every piece of this has been stunning, and seeing it assembled is probably going to be one of the most wonderful things I witness.

@thomasbecker9676

6 ай бұрын

You need to get out more.

@MCasterAnd

6 ай бұрын

We all know that this will most likely never be assembled and fully functioning. 😅 But at least the content is entertaining.

@MikeKrasnenkov

6 ай бұрын

@@thomasbecker9676says the person who’s whole idea is to write negative comments under every wintergatan upload lmao

@eddievanbasten1751

6 ай бұрын

Yeah, I thought that about the last one.

@thomasbecker9676

6 ай бұрын

@@MikeKrasnenkov Simp for Martin all you want, he's not going to sleep with you, and MM3 isn't going to meet his current expectations and promises.

Keep in mind at 8:46 that the cutter moves along the axis of the cnc but the cutter itself will be rotating and cutting on one edge, causing force to be put in the direction of your rotation axis. Something that will help with that is always starting the cut from the same side. This way the rotation axis isn't pushed one direction during a cut and the other direction on the back cut. If there is an offset due to the cutting edge it will be the same for all slots this way.

@MacroAggressor

6 ай бұрын

I'm hoping he goes with aluminum for the cylinder... much easier to cut and would limit axial loading.

@ryanp6267

6 ай бұрын

@@MacroAggressor Yeah and depending on how it's secured there could be a large amount of deflection and chattering. Hopefully he does lots of test cuts first.

Every time I started to worry he was returning to his old mistakes, he throws in a "but this would be a bad idea for of exactly what you were thinking"

CRAZY IDEA: What if instead of having a programing wheel that activates the gates mechanically, with the pins or prophiles, you had one that activated them electrically? One option is that you could print a board with electrodes and a small battery on the wheel, that would make contact with a loose wire instead of a lever. Another option is to use optical sensors with infrared LEDs in the place of the lever, lke those robots that follow a black line on the floor, having the wheel be printed with the notes Both things would be incredibly precise, but maybe the machine would lose part of it's magic, since the mechanical activation is so pleasing to see

Take a drink every time Martin says "tight".

@ryano.5149

6 ай бұрын

Careful! That's how you get alcohol poisoning! lol

I mean, I miss the music, but EVERY engineering student should be following this. Just fantastic information, walking through the problems and the process to address them, etc.

@kotovnikthegreat

6 ай бұрын

Negative examples are important, yes.

@RubyRhod

6 ай бұрын

I am an engineer and MM3 will fail as well. Martin keeps increasing his requirements every episode. He did it in the past and he still keeps doing so. He eventually will find a way not to go on tour. MMX failed because he kept putting esthetics before function and now it's about tight music in every second sentence. So far I never heard any difference between tight and not tight music.

@MacroAggressor

6 ай бұрын

@@RubyRhod Seems overly pessimistic, and a tad bit elitist. I haven't seen much feature creep of particular note. As far as I can tell he seems to be approaching this from a methodical and sane perspective, and is making steady progress toward a solid design. He certainly isn't an engineer, but he's coming at this with an engineering mindset.

@FunkThompson

6 ай бұрын

@@RubyRhodShitting all over other peoples project, and nay-saying those with kind words is not "constructive criticism" no matter how much you tell yourself it is.

@innertuber4049

6 ай бұрын

​@@RubyRhod I think we need to keep in mind that he edits the audio quite heavily for a lot of the actual music he posts From the way he describes his experiences with the other machines, he had to actively fight them to get any semblance of tempo out of them. As a musician, you NEVER want to be fighting your instrument. Especially if it is primarily a rhythm instrument. His definition of tight appears to me to be under 1ms standard deviation. Of course he's not factoring in how that'll scale up from prototype to full design, but it's still a pretty solid goal. You'll notice he has accepted every design he's created up to this point as being good enough.

I really hope the marble machine still has some hand crank/foot crank for you to choose the speed. I know its less precise but the appeal of the marble machine for me has always been that it felt like an instrument not an automaton

@methodermis

6 ай бұрын

Hoping the final machine has both, so he can play with manual (imperfect) timing for a few songs but not have to stomp a lever for an hour concert

@Izrun

6 ай бұрын

That's interesting. I'm a bit different. I definitely want it to be manually powered (not electric), but watching someone rotate a crank is boring. What's interesting to me is watching him flip levers and play the manual part of the instruments. I want to see his arms (and maybe feet) control different aspects of the music like some crazy conductor / one man band. That gives more opportunity for improvisation as well. If we get more beautiful chaos from that at the expense of not watching him do something anyone in the world can do I'm on board 100%

@justinnaramor6050

4 ай бұрын

@@Izrun Literally every single person in this fucking community needs to understand this. Guys, stop overglorifying the hand crank, it's fucking stupid actually. There are other aspects of the music that all of the marble machines have had the ability to control manually, that are far more important than "change tempo by cranking faster".

I like this idea! Using a single, known-consistent metal bar for your precision is clever. As long as you can get the rotary CNC to cut channels which are precise distances from one another, sounds awesome. My only hesitancy would be destroying a large/expensive wheel if you get your machining operation wrong, but small scale tests can hopefully help avoid that. :)

@Finnspin_unicycles

6 ай бұрын

Unfortunately a long bar like that is far from consistent and will be nearly impossible to fit along the whole length.

There is something special about watching someone learn true design engineering and implement it. These videos also demonstrate design thinking very well and is a great tool to show the difference between an idea and a design.

As my previous worries weren't dissolved, I'll just re-post the comment I wrote in a previous video. The programming wheel don't seems rigid enough to avoid deformation between both ends, the lack of diagonals or structural parts may cause a problem, moreover the driving force is applied to one end and there is resistance all the way whit the gates. One other overlooked requirement is the need to play notes in fast succession, cause you can place a pin every 2 holes at minimum, holes that are worth 1 quarter note each in your design. Some will say that the profile could have multiple edges to play multiple notes but you'd have to redesign the gate, as it is right now, it's way to flat and will be sitting on top of the multiple edges, thus merging everything into a single long note.

Just a technical comment here. You talked about the cutting forces only being in the "rigid direction" on the programming wheel for version 3. There is actually also a force in the "not rigid" direction. As a plunging cutting tool engaged with material on 3 sides. On 2 of the sides the forces cancel out, but the last side creates a sideways force that actually tries to "turn" the programming wheel. Just something to keep in mind, not critical :)

I think an important idea to ponder is why a programming wheel. If you want to design form from function maybe consider a different approach than just assuming the programming wheel is the way to go.

@fifty-plus

6 ай бұрын

My thoughts exactly as soon as I saw the double gear again.

imagine martin demanding this kind of precision from his human band-mates.

@br52685

6 ай бұрын

@@WartornNOROr because they no longer exist?

@justinnaramor6050

4 ай бұрын

Oh boy, not again! This has nothing to do whatsoever with removing the human imperfection characteristic from music. I find it amazing how this fucking community can't understand this.

This programming wheel is brilliant. At last, it seems, a wheel that is machineable and foolproof!

@Abra089

6 ай бұрын

Famous last words

Now this is promising! I hope the tests with the prototypes are successful and you learn a lot from them!

Have taken account of thermal expansion of the different materials, brass bar and 3d printed plastic under the lights on stage I would guess it will be warmer than your workshop

Martin, you can change bpm on the go precisely by adding a attack angle rod to the governor. With this rod, you can manipulate drag coefficient of the governor propeller like in helicopters thus changing the rpm that the flywheel rotates at. This method does not effect precision of the system and might be a good addition possibly. With this flexibility on the BPM, you can use the programming wheel much more efficient for varying tempo of different music tracks.

Your videos make me so happy. It is going to be bitter sweet once you nail this design. I have LOVED watching this evolve from the first machine. It has been a pleasure to learn with you, you are a wonderful educator, and an equally wonderful person.

Love it! That is such a nice and forgiving design. It WILL play tight music, for sure.

Design number two makes me think that you could look to bike wheel parts and wheel building techniques to save design effort.

@jasonbenoit2277

6 ай бұрын

just use bike rims , head back yo your bike place

Finding all these solutions while trying to quit is hillarious, when we're on our lowest the mind becomes free of its shackles after all. I'm happy you are getting better and better at the marble machine, no matter the outcome I'm just glad i get to experience this journey in real time. Best of luck!

I love this channel. I've learned so much about engineering, prototyping, materials, etc., all while being entertained. Thank you!

You've been doing a great job, love how much the marble machine has been improving over the years

Awesome video, once again. When this is all over it would be fun to have a video of everything you've done so far. Like a timelapse or something. Or maybe just a 40 hour video consisting of all your Marblemachine video's back to back. I often just have you talking about your machine in the background while i'm working on my on shenanigans

I do not know why, but your videos seem to be so cozy and atmospheric. Keep it up, Martin!

I am so proud of your new approach and the storytelling is amazing!

Fantastic video and I love how we are seeing the evolution of the designs. Those programming wheels will not be easy to move around but I guess that goes for the whole machine too.

I so love how this project is turning out! From "I believe" to "I verify" - wonderful!

So intense! Can't wait for the next video! It almost feel like watching a series and being at the end of a season, waiting for the conclusion to know if there will be a season 3 or not

4 years from now. "Prototyping The Marble Machine Programming Wheel"

I really like how you're not just using 3D printing to create parts for the machine but also tools to improve the creation process itself, that's really cool!

I really love how 3d printing has allowed the creative process to flourish! Keep up the great work! I'm excited for what the future holds, and am enjoying seeing the progress being made.

Martin, can I challenge your assumption that the programming wheel needs to be a wheel? What if it was a chain drive? You could make your music loop of arbitrary length by using larger chains (and adjusting your idler gears).

Always incredible to watch your videos, Martin! Much love! Stay awesome!

What I got out of this video is how to 3d print a very cool wheel. Got some GREAT ideas from your version 2 wheel. Love your videos!

Wow, what a great project! I can't wait to see it finished. My sincere compliments.😃

This whole astounding ride from 1 to 3 continues to amaze me!!!

Dang in at only 347 views! I think this is the earliest I've ever noticed a Wintergatan video! Hyped for the programming wheel and hyped for the world tour!

9:28 Wait, that seems like a lot of metal-to-metal surface area that needs to slide across each other while being tight enough to "press-fit". After you get a few centimeters in, are you going to attempt hammering at the end of a meter-long, thin rod? I highly recommend prototyping this before you construct a whole wheel with it. Maybe consider making the rods thinner, and adding rings on both sides to hold them in?

Fiiine! Your perseverance, passion, and love for efficiency made me resubscribe.

"Will this new wheel be hard to manufacture?" "It will be easy, barely an inconvenience and it will play very tight." "Ohh tight marble music is TIGHT."

Chasing "tight" specs is nice and all, but remember that the original captured hearts and was barely holding together. If it's not perfect, that doesn't mean it's not perfect. The *goal* here is to make music, to spread joy, to create wonder. You don't always need millisecond accuracy to do that.

great video! what a journey. I have absolutely no engineering background, but i'm still here since Day1. Having some cliffhanger vibes rn. martin is not only getting better at designing this monstrousity, even his storytelling skills are blooming! fingers crossed ❤🎉❤

I love the storytelling and video editing in this episode ❤

I always love seeing you problem solve and innovate.

I love the "Previously on, Wintergatan" introduction that starts off every video. Gives off TV show vibes.

Please note that a full plastic wheel will be prone to a lot of thermal expansion on the world tour. This could result in centimeters of variation in programming wheel diameter. Also, plastic is prone to creeping over time. I would recommend a steel basis for the wheel with small, replaceable, plastic parts.

I'm here for that good designing and crafting, absolutely lovely! XD

As soon as I saw design requirements, you got my full attention ❤

Awesome to see new ideas. I still listen to the songs

The dedication of this guy, it's rare to find professional engineers as thorough!

Martin let be short and simple on Point!!! You're nailed it once again❤ Love it🫠

Man this is one of the greatest youtube cliffhanger ever, will Martin end up continuing marble machine 3 or will he drop the project? can't wait for the next video

really cool to see the exact methods i'm learning in my mechanical engineering classes being used in this video

i get so happy when i see an upload from you Martin! I hope it all works so we can finally see your vision come to life! :D

Martin. You have brought me back. I'm so happy watching this video.

What a cliffhanger!

Buckling up! This will be awesome!

You might want to consider adding a thin “backstop” in the programming wheel for when you’re inserting the rods. You could either stop the circular bit just before exiting the far side, or just attach a ring of sheet metal to the outside. It’d at least help with assembly, but if you did it on both sides it could also help with preventing the rods from drifting out over time. Potentially not a problem, but it should be an easy enough fix that it might be worth doing preventatively.

@ameunier41

6 ай бұрын

I think it's gonna be the inverse, if the slut is somewhat tight, he will never be able to drive 3ft rod in there.

Trying to stay with Martin is like a roller coaster ride. Computer technology achieves most all off the requirmenrs except on stage presence of an instrument. The truly retro nature is "pain and pleasure. So is the design journey from performance artist to mechanical engineer. I rate Ivan Miranda cause of his very strong mech engineer skills.

The video are always so much incredible, SO happy when i see a new one

THIS HAS TO PLAY TIGHT MUSIC. YOU CAN NOT GIVE UP ON THE MARBLE MACHINE. You've come so far.

I hope it plays the right music because we all need to get the marble machine on stage with you guys when you go on your. Plus I imagine it opens up what music you can make by having the marble machine be a multi instrument leaving band meme era to play other instruments for the songs that otherwise wouldn’t be possible with the number of people on stage.

@thomasbecker9676

6 ай бұрын

Is there even a band anymore?

Look into compressionless brake housing for transferring the movement at the programming wheel to the marble gate. Bikes with mechanical brake systems use brake housing to route the movement of the brake lever to the brake calipers. Compressionless housing is specifically made to be stiffer and less squishy, possibly letting it play tighter.

Wonderful, Amazing, Incredible . . . . . . really good stuff !

I never normally interact with youtubers outside of watching the videos or commenting, and very very rarely I'll join a channel briefly for a very specific reason (Like if they have an extended learning course or something I want). I never usually go to any meet ups, shows, buy merch or any of that stuff, but I actually think if this machine finally does get finished to martins standards, I'll go to see it live when he tours round my way!

Finally when even this and the next and the next programming wheel is short of perfection- the narrative shall change to why one should never think of designing a programming wheel

dude,... you're taking things to a whole other level.... you haven't ceased to amase me yet!... :o

Certainly that design with the massive amount of pieces could be printed by anyone on even a really small printer. So it's not without its merits too. The jig for hammering in the pins is good too. I can't wait to see this machine finished, since it feels like you've been working on it for at least a decade.

The evolution of this machine has been mind boggling.

Good vibes. You got this Martin 🎉

That design is very smart. I really love it!! Well done Martin!. I think if you ever wanted to retire as a musician, you would be quickly hired as an engineer or industrial designer

I can't comprehend the level of genius behind designing these music machines.

@thomasbecker9676

6 ай бұрын

That's because there is none.

these videos always make me grin! martin! you will succeed!

You could easily get *TIGHT MUSIC* from imprecise _slow moving_ programming wheel, if the programming wheel only register *WHICH* note should be played next, but actual actuation force comes from _fast moving_ flywheel telling *WHEN* the note shall be played.

Martin, I'm so happy that you seem to be making fewer crazy decisions every video and slowly becoming the engineer that I know you can be deep down!

I imagine that press fitting those LONG metal bars into LONG slots will be quite difficult. I think the amount of friction building up will quickly overcome your ability to push them into the slots. You might consider splitting the programming wheel into several narrower drums with shorter slots for ease of assembly. You could even align the narrow drums using the metal bars provided you leave some overlap.

One of the only projects ive watched from beginning to end, ive been watching since the beginning and loved seeing where you've been and am excited to see where you're going. The first marble machine has a very special place in my heart as it was the first wooden mechanical structure i had ever seen and to make it even better, it played a beautiful song that caught my ear immediately!!!! Super excited to follow along with this project i have faith it will all play tight music!!

The perfect is the enemy of the good. Love to see the learning experiences and progress, but I would also have loved to see you going on-tour 2 years ago.😘 Go whatever direction the universe demands😙

Martin is literally reinventing the wheel!

If you replace the programming wheel with an electronic controller and replace the marbles with speakers, the whole system would be simplified and the timing/sound would be near perfect.

Im no engenier, but im a mechanic and i can tell you, depending on the material you use, V3 will be a pain in the ass. 1) the entire ball part of the mill bit is in use. That will most likely mess up the bit pretty fast and you will burn throu them like cracy. You have to use a pretty soft material for the wheel or take it incredebly slow, orherwise the wobble you create by full contact milling will mess up your meassurments. 2) you have a lot of different cuts. If you use a soft material like PE, as soon as your milling bits gets dull your edges start to look like chewed. Its doable, no doubt but if you do, do yourself a favor and outsorce it to a professional. You get your money double back in safed lifetime.

been watching since you put together that cnc in that shipping container :D I have no doubt you'll succeed Martin

I do like the metal bar idea

The suspense for next episode is insane!!

Man, that tease at the end surprised me.... lol, great progress though!!!

It better play tight music because I haven't been following you this long to see you give up!!!! It WILL work, I have faith in your abilities!

Martin, I have been watching since the beginning of the MMX and love everything you have done on this channel. You've made amazing progress as an engineer and filmmaker. I admire the finality of your closing statement, but I would suggest that your standards for success of this prototype are dependent on the known cumulative error plus a (tiny) splash of benefit of the doubt. By taking the cumulative err into account the success of the project depends on the musical tightness of the cables and drive system, rather than the flaws you already know about and know how to fix.

You are laterally building the tourbillon of marble machines! Kudos!

@scaredyfish

6 ай бұрын

The World Tourbillon

One thing to keep in mind, if the outer material is in tension or compression, it'll move as it's machined. It's possible to machine around this if you go the long route of milling it like you're tightening lug nuts.

I feel like you are living a programmers dream. Every project I work on is basically MMX but the difference is once we get to the point where early design errors become apparent, we have already overshot the budget and all we can do is to patch it up as best as we can and ship it.