Wednesday is weekly gathering of the Avengineers, Thorsday is weekly gathering of the Trainerds! Check Out Hannes 3000 awesome channel here: kzread.info/dash/bejne/pGyuma6Yc6uTd8o.html

@thetruewhiteowl

Жыл бұрын

I love your videos and the effort you are putting into making the new machine!

@shrey6496

Жыл бұрын

As you said Martin, we are hopeful nerds waiting patiently, and enjoying the engineering and musical marvel that you are going to create! Life is good again with your weekly videos!!

@jpro8952

Жыл бұрын

6 years?

@GearsAndBricks

Жыл бұрын

I like trains. I like gears. I love music. I was destined to be a nerd. 😄⚙️🎸

@endertwk

Жыл бұрын

I love the work you're doing and I'm excited to see you get started building. I'm still not sure why you want the drums to play at different speeds though. I would think you would want the option for all of the drums to play at any given speed rather than a set relative speed to each other. It would also be an opportunity to affix a sort of modular transmission unit to each programming wheel which would also give you another lever to play with, switching gears during a performance. This could allow cool solos for any of the instruments.

Since you have the spread sheet already, code the output cells to color code based on values. Red is no go, yellow is situational or cutting it close (if this applies to mm3) then green or no color is good. That way you don't have to read numbers to know if you're okay and you remove the risk of reading them or remembering them wrong

@SilvrSavior

Жыл бұрын

Conditional formatting is your friend

@ccoder4953

Жыл бұрын

Yes, we use it at work all the time - especially great when you have a huge spreadsheet full of numbers. Makes it much easier to see at glance.

@collinbardini

Жыл бұрын

Along the same line, Martin could also use the excel solver (and the least squares method) to automatically tune the inputs to achieve the desired outputs.

@HesmiyuMC

Жыл бұрын

@@SilvrSavior Conditonal formatting. I use that in an excel information file for my book :D

@teareachkh8076

Жыл бұрын

Good luck

Remember, Martin, in your quest for "tight" music, don't lose sight of the most important feature: A Marble Machine that _won't self-destruct._ • Marble-Machine 1 shook itself apart as you were making the original video. • The MMX had plastic pipes rupturing, marbles getting jammed in moving parts, and so on. That is what actually killed the MMX: it self-destructed during testing, making The Quest for Perfection utterly irrelevant. Also, remember: the MMX took so much effort to power that you needed to motorize it! The MM3 needs to be _playable,_ or all if this Quest for Tight Timing becomes irrelevant. Don't lost sight of these: playability and will-not-self-destruct.

Martin reduced the programming wheel parts count by 5! So now he can make 3 programming wheels! I'm scared now how many marble gates there will be XD

@tasty_sand

Жыл бұрын

You should be happy about it. The more gates and marbles the better :D

@sevegarza

Жыл бұрын

At least the complexity of each gate has gone way down. 10 hammers are more reliable than one nail gun.

@etestart

Жыл бұрын

Only one, to rule them all!

@creageous

Жыл бұрын

Did you see how simple and elegant and how few parts are in the new gates?

@nagualdesign

Жыл бұрын

_And it's only half the calories, so you can eat twice as much!_ 😊

Pay attention to the power transmission parts, especially that long shaft. It may be worth a quick calc to check what size and material are necessary so that you don’t get major twisting motion deformation under load. That might affect the synchronization on your 3 separate programming wheels.

@kin2naruto

Жыл бұрын

Considering that Martin is planning on standing in the middle - not the edge - that crank is clearly a placeholder. Full design features not created yet.

@benanddadmechanical6573

Жыл бұрын

Yeah I was thinking that also, people always seem to neglect torsion. For simple stuff it truly does not matter, but when Martin is aiming at millisecond timing this load/deform needs validation.

@billstrahan4791

Жыл бұрын

I was thinking same thing and a large diameter thin wall tube would be good.

@bencushwa8902

Жыл бұрын

I was going to say exactly this. Even if it's not an instantaneous effect, torque can warp the transmission over time so the timing of the three drums could slowly drift.

@stabilini

Жыл бұрын

He should make an U crank placed in the middle, where he will stand

I’m an engineering student. As much as I’d like to see this machine in its final form, learning your design process has been extremely helpful in my education. Thanks brother

@smeghead666

Жыл бұрын

lol step 1, don't listen to Elon Musk

@RubyRhod

Жыл бұрын

If you learn from him, you are learning how NOT to do it. He gave up on the MMX, because he constantly made bad decisions. and he keeps doing them. Or why is he suddenly all about tightness of music? How about making everything work for once? No, he just HAS to have a new goal...

@_TheDudeAbides_

Жыл бұрын

@@smeghead666 I hope your self confidence improves. Be well.

@extracted225

Жыл бұрын

@@RubyRhod He's getting the fundamentals right. "Just get it working" is how you end up with a spaghetti mess further down the road.

@thomasbecker9676

Жыл бұрын

Actual engineer here; I would suggest *not* using this project as one to aspire to in engineering.

Martin: "Gonna simplify things: 3 programming wheels later...

What a crazy day, TWO Wintergatan videos on ONE Wednesday!

@Talaxianer

Жыл бұрын

Was this on purpose?

@novapophis

Жыл бұрын

The best day

@_TheDudeAbides_

Жыл бұрын

@@Talaxianer It was all according to the prophecy.

@TheBaconWizard

Жыл бұрын

It's Wedneswednesdayday

@feryth

Жыл бұрын

Oh hey Bobby, fancy seeing you here too lol

Martin for the last 5 videos: I reduced the part count of the programming wheel by 10!!! Martin in this video: let’s make multiple programming wheels that run at different speeds!

@r-a-ray

Жыл бұрын

A means B is feasible.

@Krmpfpks

Жыл бұрын

@@r-a-ray mmx was too complex for him to build. So he reduces complexity. How does that make reintroducing complexity feasible?

@thomasbecker9676

Жыл бұрын

@@r-a-ray Howso?

@Taolan8472

Жыл бұрын

@Krmpfpks complexity is a function of actions and space. A given number of actions is more or less complex to execute depending on the amount of space you have to work with. By spacing out his instruments across multiple drums driven by a central crank, he has net a lower complexity than the original condensed machine. Once he has proof of concept and a functional "tight" performing machine, he can then work toward making the more condensed machine.

@ppprime98K

Жыл бұрын

@@SpeedyGwen that's the idea, he wants something that wont break by looking at it

With an axle that's super long, like the one you are using for the gears, I fear that it is going to twist a little bit under use. The timing within one programming wheel won't be affected, but the timing between the different wheels will be offset. If you can guess the load that the axle is going to see, I bet one of the many engineers can easily calculate how many degrees it will twist over its length and how much adjustment should be planned in, if needed ;)

@HonoredMule

Жыл бұрын

I doubt this will be a significant factor if the drive axle is, say, a 1/2" steel pipe. And if it is, 3/4" and 1" steel pipes are cheap common commodities too.

@clgr1323

Жыл бұрын

would this be a problem if using a THICC rod?

@jokoluna6978

Жыл бұрын

@@clgr1323 nope, the effect should be neglectable

@blargcoster

Жыл бұрын

@@HonoredMule If Martin wants his "super tight precision" then ALL factors should be considered. Even if miniscule, that torsion of the rod could affect the timing.

@fletchro789

Жыл бұрын

Probably the effect would be accounted for when you calibrate the machine. Each channel has an adjuster screw, so it'll still be all synchronized.

Yes, I would like to see a finished marble machine. But what I would like to see even more is for Martin to make some new music.

@Indianadixon

Жыл бұрын

THIS

I'd recommend a mark on the readers with a 0 at center so you can see exactly how much you've adjusted the movement. Also keep backlash of the bolt in mind

Don't forget to leave space for the bicycle to power all these speeding drums!

Hey, this week I started a new job working as a automations engineer, I'm only 16, just want to say thank you, your a big inspiration to me, I absolutely love your work and videos, I'm confident in marble machine 3! Keep it up. So glad to see you posting more, I feel unfinished without your videos. Thank you so much 💓

I remember the videos back then where you were taking us in museums to look at old antique automated music machines built long ago, before the digital era. Considering todays technology it's mind blowing to think how those artisans were able to make those wonderful working music machines with the tools they had.

@Frank01985

Жыл бұрын

They probably weren't obsessing over millisecond timings and tolerances.

@keiyakins

6 ай бұрын

​@@Frank01985 I mean, mechanical tolerances had to be pretty tight. Arguably tighter, since most of them were at least partly pneumatic. It's true that there was probably a little more slack in the timing, though part of that is the styles of music more common on them...

The fear with how big you're making all these programming wheels is that even if you make them out of plastic, the entire machine will end up with a lot of inertia, and you will need a lot of force to stop and start the machine. There may be significant windup time before you get up to speed, which may impede the flow of a concert setting

Seeing Martin so happy and smiling makes me happy and smiling.

It's very inspiring to see you make MM3. I still listen to that original song and got hyped for MMX, but you seemed to have burned yourself out with all the frustrations. However now you seem super calm and collected and I'm so proud of you.

As a drummer, I drooled at the thought of you building a beat live. YES!!!

You didn’t explicitly mention why the wheels rotate at 3 different speeds. I assume it’s because you want to optimize for tightness on the left (drums), and maximize addressable number of notes on the right? Cheers

@lasskinn474

Жыл бұрын

you get more resolution compared to the slower one on the faster wheel, but you get a shorter program(relative to the slower wheel). though his thinking seemed to be that simply because it's faster it's tighter.

This video was really needed, because i was so confused by the (huge) size of the programming "pins".

I'm having a hard time deciding if I can get emotionally invested in this again lol.

@nathano2778

Жыл бұрын

Ill just watch a few hundred more while i decide

@nerokcubreva

Жыл бұрын

you can follow a project and not become "emotionaly invested"

@The_oli4

Жыл бұрын

@@SpeedyGwen it is easier with the timings especially if he decides to go with the programming pins he has now. Also I don't think aesthetic should be considered at this point of the proces that is why both the 2 other machines failed.

@coder0xff

Жыл бұрын

@@SpeedyGwen This one will definitely be more difficult to transport!

@armandocamero

Жыл бұрын

don't do it!!

Can't wait to hear the "original" song on the final marble machine.

I wouldn't say I'm an optimistic nerd. I am a nerd, and I do believe you will be able to create the marble machine, but I am a bit afraid that you may get stuck due to your perfectionism. I'm not here for the final product though. As much as I would love to see the marble machine finished, I also love to witness the journey itself. To me it's very interesting to see the problems you encounter - both the engineering problems as well as mental problems - and it's even more interesting to see the solutions you and the community are able to come up with. This project has inspired people and educated many of as well. So no matter what happens in the future, I will always see this project as a success. Yes, even if the marble machine never gets finished I still see this whole project as a success :)

@Travelinmatt1976

Жыл бұрын

That's what happened with the last marble machine. I still believe it was perfectly viable and he should have finished. Now he's talking about tight music but spread across 3 wheels with that super long shaft. I just don't see how that will work.

i'm just a musician, no particular interest in engineering, but since i've discovered this i haven't missed one! just so happy to see you get through this and all results are just motivating! keep up the good work!

@extracted225

Жыл бұрын

I have absolutely no interest in the music, just the engineering 😄

The "more speed = higher resolution" concept applies to sheet music as well. If I want to write a passage of very rapid syncopated notes in an otherwise slow piece, I might run out of small enough subdivisions (64th notes are usually the smallest). But if I increase the tempo during the fast section, I can start with larger subdivisions (e.g. 8th notes) and still have enough smaller ones to notate every little rhythmic accent. TL;DR: the faster the tempo, the more precise note-length values can be.

I love the massive activity this channel is getting back to

These videos are so fun to watch. I love seeing the new designs you are coming up with.

Your SOP has helped me look at my creativity strategies differently. Thanks for you transparency on this channel!

I hope 3 different speeds dont add 3 times the trouble in getting them to be timed to each other, manufacturing incositensies add up with gearing.

6:53 love when Martin sneeks in a bit of Gothenburg-humour in an obvious but subtle way: “so I can be more like a DJ and build a beat “reel” time” 👏

I'm glad you're posting videos again. I have enjoyed watching your journey through the marble machine x and I'm looking forward to see what you build in the future.

I love you man, but diminishing returns. The amount of perfection you are trying to achieve is beyond what is necessary.

@davinderc

Жыл бұрын

For him it's not.

@nalissolus9213

Жыл бұрын

He's learning a lot of useful skills along the way too.

@Swerve2987

Жыл бұрын

@@nalissolus9213 I completely agree, but trying to achieve 100% will never happen. Even 99.9% would take years. When in reality achieving something like 97% is much more reasonable and nobody could tell the difference. Hell in a previous video the difference in time was due to the noise in his recording equipment.

@HonoredMule

Жыл бұрын

Aim to overshoot your baseline goals and you're much more likely to reach them.

Yey. I'm an optimistic nerd.

Thank you for your great and educational content. Can't wait for the first prototype to be done.

Love your drive since so long that now it just feels natural to caught on every of your updates, and to have lost the account of the "when"s. Commenting to eventualy support all of what you have acheived and what I've learned from you during all those years. Keep on going, it's very exciting to follow this project and the improvement you made as a designer and maker along the way. With love to you and Wilson, from France.

Martin you are a true musician and engineer you’re docs are so inspiring keep it going always 😊😊😊

@thomasbecker9676

Жыл бұрын

He's not an engineer.

I spent 3 years of my life programing an algorithmic music generation software. With every new version, I would make improvements, and the generated music would sound closer to perfection. I eventually ended the project when I had an epiphany that I was fundamentally chasing the wrong thing...my human ears actually prefer subtle error in pitch and timing, for interest, otherwise music begins to sounds too harsh and sterile. Actually, thinking back on it now, the absolute perfect song might simply be a single sine wave that doesn't start or end. Wow, that got way too deep, way too quick : ) I hope that when you finally achieve perfection, you don't come to the same conclusion. Cheers!

@LordDragox412

Жыл бұрын

"A single sine wave that doesn't start or end" - so... silence, but more wavy? /s

@killerbreadsticks

Жыл бұрын

@@LordDragox412 spicy silence

Dude I will watch anything you make. The moment I saw the marble machine one I went back and watched all your other videos and have been following you avidly ever since. We are all as excited as you are to see the final working machine.

Here for you and this journey. I can't wait to see and hear your creations some day.

Mathematics is the language we use to understand the universe! I love seeing your approach to engineering coming from a creative standpoint rather than an academic standpoint. It really provides an insight into a new perspective on how to approach the learning process. In fact, it may even be a better way to approach it in some ways, because it puts more emphasis on passion and enthusiastic exploration. You are a real inspiration Martin, I'm glad that you share your journey with us all, and KZread is definitely a better place because of that fact. I look forward to your next, cheers!

@HonoredMule

Жыл бұрын

In a world where AI and robots are becoming increasingly capable, passion for personal visions may be the thing that can keep humans occupied - and creatively relevant. Not that I see a post-scarcity utopia on the near horizon, but we have been crawling in that direction for centuries, with progressively higher percentages of the population able to dedicate large parts of their lives to such pursuits as this under the glow of a Naked Sun.

@chrispycryptic

Жыл бұрын

@@HonoredMule Well said. Though I will add, AI/Robots in tandem with humans will likely usher in a new technological/scientific revolution. They are innovative tools to make us better humans, to take us to new heights; and it's probably coming sooner than you might expect!

@thomasbecker9676

Жыл бұрын

But our system of math is potentially fundamentally flawed.

@chrispycryptic

Жыл бұрын

@@thomasbecker9676 ...and yet we continue to use it daily as a means to successfully solve engineering problems. This is the fundamental reality of science, we work with the tools that we have at our disposal to achieve greater understanding of the world around us. As we continue to progress, we also innovate the tools we use. The system of mathematics, as you put it, is an open system continually in a state of flux as we achieve greater levels of comprehension. Though, I am curious as to how you would arrive at that conclusion? Why do you feel this way? Mathematics is a very logical language for interpreting our world. It is even able to reliably predict the nature of the smallest things in the universe to a mind-boggling degree of accuracy.

@thomasbecker9676

Жыл бұрын

@@chrispycryptic The fact it breaks done at either end of scale. Imaginary numbers. Etc.

Hey Martin, I’m a drummer and I had a cool idea come to mind, you should add a drum pad so you can get some electronic drum sounds, say for example you can have a snare with lots a reverb or say a reversed cymbal roll, a drum pad can add so much opportunities to the percussive side of the machine, and since the pads are made of rubber it can be hit by a stick and a marble, cool idea, I think that would give for depth into the music the machine makes

@nickfosterxx

Жыл бұрын

Seconded. (why did I not think of this, I have a Roland ffs)

Martin you are the man. Been religiously following you journey since you began on MM2. I get so much enjoyment for watching your evolution and thought processes. Wintergatan music is so good I would love to see you guys in concert someday. Keep up the great work, you have huge fan community cheering for you.

I've always watched this channel for the ride, no point to me picking at every step Martin takes. Sit back and enjoy this amazing machine come to life again. Love it

I love to see the marble machine 3 become more and more reality

How much torque is going to be needed to drive three programming wheels from a single axle like that, compared to the previous machines?

I love still being here for this journey. Watching your process is so much fun.

Such a delight to see the advancement of your wonderful machines, thanks for sharing❤

Is playing tighter than most human musicians one of those "dumb" design requirements? I think being able to play music is a better design requirement. It is still music if it plays about as tight as human musicians.

@KaitouKaiju

Жыл бұрын

Having a greater musical resolution so-to-speak will make it easier to play songs with slew and swing

@davinderc

Жыл бұрын

Dear lord, if you want to design a sloppy machine, you're welcome to do so. Martin is building what he knows he needs and it's fully up to him to do what he wants in his life...

@TMinusRecords

Жыл бұрын

@@davinderc In chasing beyond human precise human, he's threw the entire machine out of the window. It's not called a "sloppy machine", It's called a minimum viable product.

@HonoredMule

Жыл бұрын

Aiming for tighter resolution creates margin for error in the final assembly, and equates to greater mechanical consistency. I'm guessing here, but suspect greater mechanical consistency will also translate into greater _reliability._

@davinderc

Жыл бұрын

@@TMinusRecords it's not up to you to decide how Martin lives his life or whether his decisions are worth his time

What is the purpose of "hold time" rather than just on/off? or a standard length?

@GoelWCS

Жыл бұрын

The marble is not totally set before dropping => loss of time precision.

Loving these videos and how you continue to inspire everyone and even me with my music

I absolutely love this series. Super interesting stuff and I love the way of you tackling the individual tasks. Keep up the work. And I’m certain we will see the marble machine 3 see the light of day.

It looks really good, but I hope we're not making it too complicated again. Edit- For those making fun of me because I said "we", it's because I've seen the evolution of his invention. He has shared his thoughts on previous designs and talked in depth about over engineering. I'm not taking credit for his work or implying that I'm working with him.

@ChrisLee-yr7tz

Жыл бұрын

Lol. We.

@davinderc

Жыл бұрын

Diego are you at his shop working with Martin?

@ChrisLee-yr7tz

Жыл бұрын

It's all friendly banter! I know what you mean.

@davinderc

Жыл бұрын

To be fair, there are many disappointing comments here trying to tell Martin what he should or should not be doing, when in reality it's his project to do with what he pleases

@uruwow8

Жыл бұрын

@@davinderc I understand, I was thinking back to his video he released about over engineering and engineering for looks instead of practicality.

I love your channel and I am very happy that you are back(no pressure).

Awesome! I really like the image in my mind of you pulling levers to adjust which loop is active. Wizard of Oz man behind the curtain style, really cool level of interactivity for the performance side of the music.

Yay! Love your enthusiasm. Life is good.

so happy to see you back into it martin. thank you. kudos

As a “not quite engineer” who works with and designs repetitive assembly-line work, i love to watch this journal of discovery! Your passion is quite inspiring and your community is glorious 👏

I’m watching in 2023 and I still believe, Martin! Just keep properly testing your designs, and the MM3 will become reality.

That checklist of yours is truly satisfying!

Love Wintergatan Wednesdays!!! Great to have you back :D Really hope you succeed this time but no big deal if you don't, the process is what matters! Wish youthe best Martin 😍

I'm so excited to see you go for a modular design! It leaves the machine open to so many options for future use. I can imagine this stage filled with individual sections that can be added or subtracted from songs.

I have only been able to recently start following closer. I remember seeing the first marble machine years ago. So freeking cool. Im loving all this amazing insight!

One thing I really like about this new machine is that you aren't sticking to the small form factor of the original marble machine. I feel like this was really holding it back as it forced everything to fit within a small space and thus made it much harder to design something that just works properly. Now you have the space to basically do whatever you want, and there wont be the issues of having to cram things together.

havent seen your videosin long time but the idea itself is your still going love it

Idea for a video down the line. Program "Never gonna give you up" into the MM3 then use the muting levers to real time mix your own song. At the end of the video you flip on all the relevant channels and walk away as everyone watching realizes you've Rick Rolled them. A lot of work but it would be totally worth it.

So many videos!! I love it

It's not even about optimism in seeing the machine work. I do want to see that but seeing you grow in your design Journey has been very interesting to watch. That's why I subscribed today.

The workout compilation after you say "I'm trying to become a stronger designer" got a chuckle out of me. Much love and happy creating Martin!

This looks amazing!

No lie, I kind of loved being one of those described as an "optimistic nerd"!

I love these videos. Just make sure you take time for yourself because you look a bit exhausted here. Hope you are well man.

I love the new idea of an entire wheel for just drums, theoreticly you could have everything already programmed on the drums, like quarter notes, triples etc, and if you wanna go really hardcore (might be issues with timing though) is different tempos set with gear ratios, also activated by levers etc. You could probably play an entire set with just one programming wheel for the drums. 🙌

making the marble machine like this enables other people to print your machine and mix different instruments for their performances

Decoupling the drum, bass, and melody programming wheel is a brilliant move.

I'm a musical dunce but I am mechanicaly minded. Your journey is truly something awesome to watch! You rock and I can't wait to see more

Im watching your videos since the first machine, and i really feel like a nerd that want you to achieve this one. Lets goooo i trust u

So happy to have Wintergaten Wednesdays back! Loving watching this new machine evolve as theory.

Love the intro! Nerd hoping to see the tight music world tour!

What you don't seem to be stressing enough is how simple these designs are. Repeat after me: "Simple is Best"

you really go hard on the engineering i love that.

I love the idea of having a greater range of songs with one program by adding more channels, and more levers. Very dynamic!

YES!!!! Hooray for Wintergatan Wednesdays! They used to be a (or more like the) staple in my week and sure will be again!

The journey continues. Thanks Martin.

Wintergatan: "If you're watching this in 2023" Me: watching literally 5 mins after published

I really hope the attention the channel is getting shows Wintergatan how badly we just want some simple songs being played by any marble machine. You must realise that even though YOUR expectations are to build a perfect machine because a machine can be finetuned... I feel like I speak for many people when I say that hearing the marble machine X play for full 2 minutes. I don't understand how you could play a song on the wood machine with so many marbles falling out and now you're almost afraid to let every 50 thousandth marble drop.

Thank you for all this cool Videos, I have learned a bunch watching you. I am here to see you going on an Worldtour and to see you building The Marble Orchestra Bot in the future. -)

I normally try to prevent notifications, but you sir, are getting the bell. I have been looking forward to your videos, these are awesome.

Of course I can not let it go :) I've been following this project for years now. Can't wait to see a finished marble machine :D

Can't wait to hear it when it's done

Hi, @Wintergatan! Your marble machines are super cool. I can't wait for Marble Machine 3 to be finished. I wish you the best of luck.

The reader adjustement feature and the timing table with inputs and outputs just blew my mind. This is getting serious! Congrats on the job you're doing!

@br52685

Жыл бұрын

You’ve never used MS Excel before?

I’m seeing this project to the end. And you are finishing it. I’m to invested in it for you to not finishing. 😂 Holy smokes, I’m 5 years into watching this .

Woohoo, Wintergatan Wednesdays is back. Now my wednesdays are no longer a dark and dreary hellscape of remembering what it used to be like, getting a fix every week!

Always optimistic for the Marble Machine whatever version and loved the whole journey. The madble machine is growing up, now more adult!

KEEP PUSHING MARTIN 💪

Thank you for the video.

you are the engineering art genius of this era!

One thing about feedback in an engineering process: the earlier the better! You can definitely receive too MUCH feedback, but it's honestly never too early to get another (often more senior/experienced) engineer's eyes on the design. Those extra eyes will almost always see something that you didn't, and when designing something with complex systems that must interconnect frequently, consistently, and tightly, making a change to a single small component can trigger changes to many other components. tl;dr - don't wait until the design is totally complete to solicit feedback! If you have some trusted engineers on your Discord, please solicit and process their feedback ASAP on what you've done so far and on each major piece moving forward. You don't have to open it up to the entire community, but a small team (or even just one person) is better than waiting until right before prototyping.

I would suggest making the hexagonal nut flush with the 3D printed part by making a hexagonal inlay that's slightly oversized. This way the part will loosely clamp the nut and you can tighten the bolt with an Allen key with a single hand.