Rebuild? Why? - Marble Machine X #142

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A lot of REAL progress this week! I thought it was high time that i tried to give you all some context on why i am doing this major redesign that i am working on right now. Im presenting one theory that might explain the motivation behind the decision to do this redesign. Perhaps the Marble Machine X itself is the Local Maximum, in that case, the current process will lead me to that discovery and i will take another u-turn to find the path to the world tour. Probably i will take the advice that has been given to me so many times during the past years: "Why dont you just play guitar?"
:) Hope you all are are having a great day and enjoy everyone! ;) / Martin

Rebuild? Why? - Marble Machine X #142
Video edited by Martin & Hannes Knutsson
Support the Marble Machine X Project:
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INSTAGRAM ► wintergatan2000
Thanks to the Marble Machine X Team 2020
►Alex Füßl | Alex CNC | Munich, Germany
►Carlos Montoro | Anjuda Guitars | Madrid, Spain
►Chris Nadon | Aix-en-Provence France
►Dwayne Myers | Safety | Phoenixville, PA, USA
►Ecco Pierce | All Things Ecco | Oakland, California, USA
►Florian Hu | fhuable | Wellington, NZ
►Jacob LaRocca | Rocket Props | Somerville, Massachusetts
►James Passmore | CAD9 Design LLC | Worcester MA
►Marius Hirn | Munich, Germany
►Nick Householder | Florida, USA
►Philip Brown (solo banjo) Winston Salem, NC USA
►Rainfall projects
►Richard Southall | String HeArt | Devon, UK
►Sebastiaan Jansen | Leuven, Belgium (BE)
►Tim Keller | Inventopia | Davis California USA
►Tim Mitchell | CNC Machinist | Nashville USA
►Tobias Gutmann | Tobias Gutmann Prototyping | Munich, Germany
►Tommaso D'Amico | Vancouver, Canada
►Will Francis | Machine Thinking | San Francisco Bay Area, USA
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► -
Help us caption & translate this video!


  1. DoodleChaos


    8 dagen geleden

    Ooof that was a brutal angle grinder. Hang in there Martin, regardless of what happens we support you.

    • TheChipmunk2008


      3 dagen geleden

      @Wintergatan YASSSSSSSS

    • JoRasEyez


      3 dagen geleden

      Redesign?????? am gonna stop watching i sad a million times Martin has a problem ... i wasted like 3 years following this project ........we all know martin he is perfectionist ,but every thing has its limit.. and i think he is doing this because the channel was not for building the marble machine , so he is scraping the barrel , soo it was fun while it lasted .... bye bye

    • numfortably_combed


      5 dagen geleden

      @Wintergatan Hi Martin, You're now reaching epic levels of failure rates with the grinder! ;-) People in the comments below are talking about 6 Sigma standards. I'd also mention that you've reached the stratosphere-- you're now talking about aeronautical design levels of failure. See also ideas about "redundancy" in design and "fault tolerance." Airplane safety statistics might also be helpful to get a grasp of how to pinpoint design durability and weakness. Keep striving for excellence!

    • Atomic Shrimp

      Atomic Shrimp

      7 dagen geleden

      If you had to approach a completely different, but equally complex machine build project in the future, knowing what you have learned along the way, what would you do differently? Seems to me that you might invest more time testing single prototypes of a sub-mechanism before iterating them across the machine itself - that is, for example, build one marble dropper, and test it with a million marble drops. Then you're only fixing one thing, rather than fixing 20 of the same thing, only to find that the fix isn't sufficient. I'm not saying I would do better myself (in fact I know I wouldn't - I simply lack the patience for this scale and complexity of engineering), and it's also less exciting and less fulfilling to be just testing components, instead of seeing the machine emerge of course. Hope this doesn't come across as critique - I'm actually just interested to know how your methodologies have changed across the course of the project.

    • ramp agent 92

      ramp agent 92

      7 dagen geleden

      @Cobalt 27 try to isolate and figure out which game is doing it. Then inform Martin on whichever media you think he is most likely to see it.

  2. Daskut


    Uur geleden

    "I'm rebuilding the Marble Machine X!" Germans: 24:49

  3. Pixel The Incrediboxer

    Pixel The Incrediboxer

    4 uur geleden

    This is *marbelous*

  4. Joe Balint

    Joe Balint

    6 uur geleden

    Martin- I've missed quite a few episodes. But, I had a thought after your Captain Context vid: Are you treating the wooden parts to reduce the impact of humidity? A couple of decades ago, we use to make our robot chassis from plywood. We did our work in Ohio but the competition was at EPCOT in Florida. To avoid the plywood swelling from absorbing water due to the high humidity, we painted the chassis with several coats. Is there a coating on your plywood parts? Maybe it won't be an issue with your smaller parts.

  5. lexdimond1


    9 uur geleden

    You need to link up with Adam Savage

  6. Benjamin Stadler

    Benjamin Stadler

    11 uur geleden

    This calls for an intervention. Somebody get him out of the shed? Feels like current circumstances take a heavy toll on artists. Nothing wrong with focusing on details but this turns more and more into an unhealthy obsession - called perfecting yourself to death. It's not worth going insane over this.

  7. KWA


    12 uur geleden

    If it were not for this kind of ambition and determination the world would never have the light bulb, the automobile, or the airplane. Keep up the good work.

  8. Hadley Siqueira

    Hadley Siqueira

    12 uur geleden

    I feel sorry for those ones who are making the 3D model of MMX. ^^'

  9. PurpleGuy2779


    15 uur geleden

    when i hear brutal, i think of sledgehammers.

  10. Evan Stunt

    Evan Stunt

    16 uur geleden

    Someday you'll need some magnetic polarized balls repelling to each other to avoid some noise .. or mechanism .. try adding alternated magnet binaries .. if they repels each other there is no reasonable motives to the marble to get stocked .. cause it will flow by magnet repulsion almoust for about forever..

  11. ronrooz


    16 uur geleden

    Martin, why is it that in many of your videos the sound is sometimes out of phase and a moment later (next edit step) back in phase again?

  12. Uraneum


    16 uur geleden


  13. Baron Münchhausen

    Baron Münchhausen

    16 uur geleden

    Why? YT-Money for this "never ending story"!

  14. Anson Olds

    Anson Olds

    17 uur geleden

    Piano Technician here, I would advise against using Graphite Powder. In pianos it is useful for the short term, but eventually it gums up. Some "technicians" use graphite so much that it ends up everywhere, and those parts need to be cleaned or replaced because the friction becomes unmanageable. Instead I would recommend using Teflon powder, very sparingly.

  15. Abe Dillon

    Abe Dillon

    18 uur geleden

    An alternative to graphite is High-Density Polyethylene (HDPE) . It's like a low-friction plastic material that should be pretty easy to machine.

  16. Abe Dillon

    Abe Dillon

    18 uur geleden

    At some point, you gotta lock in the design (flaws and all) and push future improvements to MMX 2.0 After the world tour, you'll have money for all sorts of fun tools.

  17. Willaby Uberton

    Willaby Uberton

    20 uur geleden

    I think your math is off. If you do something 100 times with a 99% success rate, than you have 0.99^100 = 0.366 chance of it working. Obviously not good enough, but that's still not 100% chance of one failure. A 99.99% success rate 3600 times is 69.76%. Increasing success rate by a single nine gives you 96.46%! If you want to play the machine ten times a day with a >95% success rate (less than one failure a month), you need each individual operation to have a 99.9999% success rate. Which is probably beyond standard engineering. NASA quotes figures like 99.74% success rates for engines. Have you considered finding ways to recover gracefully from a failure?

  18. Ethan


    21 uur geleden

    me: doesn't watch wintergatan for a few weeks, come back. martin: I've replaced half of the machine. Wow what an improvement. The lack of noise on that runthrough :o it's beautiful

  19. MantraHerbInchSin


    21 uur geleden

    He is not crazy, just devoted. I support you Martin!

  20. Martin A.

    Martin A.

    21 uur geleden

    yeah... lets start all over again.... at this point this is so stupid

  21. Jörg Johow

    Jörg Johow

    23 uur geleden

    I changed my mind:"never" - period.

  22. Carson Kendall

    Carson Kendall

    23 uur geleden

    you have the coolest job ever.. if you can call it that. incredible.

  23. Somebody_Else


    Dag geleden

    15:38 Good spot, Martin!

  24. teamidris


    Dag geleden

    I hear your ‘feels’ 100% :o) I ran the same race car 4x4 from 1993 to 2020 and it got changed many times. Around 2011 I took an angle grinder to the back and was cutting out redundant brackets from 1993. It was bad/good feeling. It was waaay better for it. *At the moment I am making a Mamod steam car into a Gscale rail car. I will have a small box of prototype parts that each took hours to make. :O

  25. LangyX


    Dag geleden

    @wintergatan, Auction off your spare parts as souvenirs.

  26. YourResidentRedleg


    Dag geleden

    Not gonna lie. I don’t care about any sort of reason. I’m not gonna stick around for someone to rebuild the same thing over and over and over and over again. Been here for years now. Watching you do this so many times is just monumentally disappointing. Keep screwing yourself, the people who help you, and your fans. Just finish the machine dude. Probability and what actually will happen can be two entirely different things. But oh well. Just milk a Patreon for years with no finished product.

  27. Frank Wells

    Frank Wells

    Dag geleden

    9146 X 5 = 45,730

  28. Jonas Pihl

    Jonas Pihl

    Dag geleden

    I Can hear the cad team screaming

  29. Jamie Kawabata

    Jamie Kawabata

    Dag geleden

    "All my friends have at least one friend like that." Hmmm... checks out.

  30. wilson langeani

    wilson langeani

    Dag geleden

    You build it, man!

  31. Ro Paul

    Ro Paul

    Dag geleden

    This is a prime example of why I unsubscribed from this channel. What will you redesign next? You can spend the rest of your life on continuous improvements. I can see it now Episode #507 - Marble Divider Version 8

  32. Chuck D

    Chuck D

    Dag geleden

    I wish I was this brilliant.

  33. Rafael Pernil

    Rafael Pernil

    Dag geleden

    I think it would be better to design the MMX to be serviceable, to have easy to replace parts and ways to recover from failure quickly

  34. Niko Shropshire

    Niko Shropshire

    Dag geleden

    I am not sure if you want to get your machine complete. Wth?

  35. Skillfully Executed

    Skillfully Executed

    Dag geleden

    Well your probability math is a bit poor there but okay, u can't really say u have a 99% stability rate based on 100 marbles, that is not a dynamic probability. What you are looking for is stability, meaning a 99.9% probability for each marble to go through the system successfully, if after this you can start calculating using the probability of instance 1, and put the number of attempts as a power of. Probability of a marble stopping within 3584 time(s) at 99.9% probability = 0.9993584 = 0.027714675751556 = 2.77% So at 99.9% you'd actually have a 2.77% failure rate for each time you played the song, that is more than acceptable.

  36. MC Falkenstein

    MC Falkenstein

    Dag geleden

    25:43 "I know my friends have at least one friend like that" That one cracked me up :D

  37. Diário de um casal viking

    Diário de um casal viking

    Dag geleden

    4:35 Hey guys, ChrisFix here

  38. Charlie


    Dag geleden

    Lolz that graph about the local max is hilarious

  39. Charlie


    Dag geleden

    Your transparency is so refreshing Martin. Been a fan for quite a while and love how much detail you give all us fans. Cheers and Stay Safe.

  40. nursefuzzywuzzy


    Dag geleden

    Martin Don't you dare quit on this! You can get it to work I know you can do it!!!!

  41. MeMuX


    Dag geleden

    You should make a "Loctite usage" counter next video of assembly lol xD

  42. AlexTheFluffyBoi


    Dag geleden

    I wonder if we'll get a remake of the marble machine song on the new marble machine i really hope so :3

  43. Pete Hyde

    Pete Hyde

    Dag geleden

    Service with a smile

  44. Michael Nio

    Michael Nio

    Dag geleden

    What program do you use for your cnc router?

  45. 風見隼人


    Dag geleden

    I hope I can see my name next time. QAQ

  46. Candra Shalahuddin

    Candra Shalahuddin

    Dag geleden

    I have followed your progress in making this masterpiece. I'm very inspired! But at this point it looks like you are too emotional to do this brutal angle grinder. If you discuss this first on NLcameras before act, I will advise you to make an MMX version, finish your work in stages, don't destroy what you have previously made, make a new one that is better without destroying the old one. nothing is perfect, perfect is respecting imperfection But I respect your decision. Just don't get discouraged Martin. I hope the best for you!

  47. Simorenarium


    2 dagen geleden

    As a Software Developer I can really relate to the complexity and sometimes to the necessety to redisgn things...

  48. HackdIluminattihater


    2 dagen geleden

    24:49 Nein! Nein! Nein! Nein! Nein!

  49. Th3f0xman Mc

    Th3f0xman Mc

    2 dagen geleden

    martin the 371 thousand people that watched this video are the real supporters

  50. G erman C arrasco

    G erman C arrasco

    2 dagen geleden

    In other words, songs for the tour are not ready, building life in France is cozy and COVID allows to postpone completition undefinetey

  51. NaiOni


    2 dagen geleden

    So this is what I'm wondering... Isn't the likelihood of a master musician missing a note greater than 0.00001%? And isn't the likelihood of a string failing on a guitar greater as well? It's starting to feel like you're chasing precision that might actually be unachievable. The Lego company has some of the most accurate and precise manufacturing of any factory in the world, and 18 out of 1 000 000 pieces are faulty. That's 0.0018%, that's a lower precision than you are aiming for with the MMX. You are building a machine at least partially by hand with the goal of it having higher precision than some of the most sophisticated machines in the world. I'm worried that your unwillingness to compromise could make the completion of the MMX impossible. I admire the dedication, but this is the first time watching these videos that I've truly felt that you might be aiming towards the unachievable.

  52. Tedd


    2 dagen geleden

    As a comparison, how did the original marble machine fare stability-wise? I know a lot of marbles dropped to the floor, as can be seen in the video, but how much work was it to get one song out of the machine?

  53. Tausif ali

    Tausif ali

    2 dagen geleden

    No one..... German Engineering: Lets make a band using marbles

  54. Koawei


    2 dagen geleden

    classic to steampunk

  55. Daniel Brendemuehl

    Daniel Brendemuehl

    2 dagen geleden

    With the graph Martin I just got to say I completely support you, but as a machinist I know that if you are dealing with anything mechanical you are going to have failures. Nothing will be perfect you can get close but nothing in this world is perfect.

  56. chatparesseux


    2 dagen geleden

    What you described is 6 sigma standard there are training books to reach that standard in the engineering process. Most automotive industries follow it

  57. Ev3rM0r3


    2 dagen geleden

    One of the most dedicated individuals I have never met but the most intriguing single person I've watched on youtube or anywhere. I've watched your progress from day one on the last build and now this new one. What a journey. I could never follow in your ambition footsteps. I envy you sir. And GL on completion. And god damnit you better complete this!

  58. Forge


    2 dagen geleden

    Welcome to the 5 9's club!

  59. Rai Kanegasi

    Rai Kanegasi

    2 dagen geleden

    7:58 If you were going to bore me, I wouldn't be watching you. Keep going, you're doing great.

  60. zerohm m

    zerohm m

    2 dagen geleden

    been following this for what feels like years now. really cool to watch the different iterations and major breakthroughs you have periodically.

  61. ky


    2 dagen geleden

    At this rate I don’t know if it will ever get finished.

  62. vinasu maaj

    vinasu maaj

    2 dagen geleden

    "In mathematics you don't understand things. You just get used to them." - John von Neumann

  63. Tony C

    Tony C

    2 dagen geleden

    You're kidding me.... just finish the machine already!

  64. Damalycus


    2 dagen geleden


    • vinasu maaj

      vinasu maaj

      2 dagen geleden

      the last part about stability hits home as a software engineer

  65. MrCyssiek


    2 dagen geleden

    Martin... I stopped watching this amazing project because... you tripping dude. You should know where is healthy line because MMX is not your project anymore, its obsession.

  66. Drew


    2 dagen geleden

    Martin: takes out angle grinder Cad team: NONONONONONONONONONONONONO

  67. Jakubiak Kos

    Jakubiak Kos

    2 dagen geleden

    20:00 Explanation

  68. Steven Kozlosky

    Steven Kozlosky

    2 dagen geleden

    I love what you've done and what you're doing!! It's so much more than a build - it's instructive. My son is currently embroiled in a senior project at university. It's a device that four students conjured up in a spitball session and now they're tasked with building it. It has electronic and mechanical components but I'm convinced that the lesson is elsewhere - the lesson is the human components and learning to usher resources. The likelihood of a device that four kids agreed to build based on an hour spitballing ideas will work is slim to none and not really important. I concluded this having watched our eldest go through a similar "senior project" at another university. It was, by my estimate, not successful as a product, but what his team learned about engineering and management was priceless. Thanks again for all you do!!!

  69. Carter Laubach

    Carter Laubach

    2 dagen geleden

    Don’t give up! You have made too much progress to turn back!

  70. Omnihil777


    2 dagen geleden

    November 2036 : 6th rebuild of the MMX on the way, we think it will be ready in 2 months...

  71. Exploding Crow

    Exploding Crow

    2 dagen geleden

    this whole project is proof that engineering and art can coexist also i'm from chicago, i have no idea if it's actually a 'chicago' or 'boston' screw, but apology accepted anyway also also, if you look briefly at the history of machines moving really fast, before the industrial revolution there was no real concept of machinery failing through normal use. things didn't move fast, you didn't have a part that was being used hundreds if not thousands of times a second. so when things started breaking on the big expensive new machines it took a collective brain blast from engineers to figure out what was happening. you basically went through all of that independently. i went to engineering school, i'm not even sure if that's where i learned about the problem. if it was they mentioned it like once and never again. the biggest breakthroughs of the past have become so common that they aren't even considered important enough to be common knowledge

  72. Jasper Cattoor

    Jasper Cattoor

    2 dagen geleden

    Noooo don't give up :o

  73. Jasper Cattoor

    Jasper Cattoor

    2 dagen geleden

    Yes, exactly, I mean WTH? WHYYYYY

  74. nur farrahana

    nur farrahana

    2 dagen geleden

    You are so geneous

  75. Shankara Rhuddlan

    Shankara Rhuddlan

    2 dagen geleden

    Hi Martin! Before I say anything else please know how much we appreciate you and how much you have inspired so many of us!!! I had this idea... what if you take any of the parts you removed and won't use again and auction off some of these parts to help raise money for upgrades, stir up some hype and excitement and allow some of us to donate and possible win a piece of MMX history and display it in our homes while we continue with you on this journey? Thanks for reading my comment and thank you for being so awesome!!!!

  76. CarColleRote


    2 dagen geleden


  77. soniyu ziuy

    soniyu ziuy

    2 dagen geleden


    • soniyu ziuy

      soniyu ziuy

      2 dagen geleden

      ... will last months. The difference is remarkable :)

  78. Sean Lyttle

    Sean Lyttle

    2 dagen geleden

    6:12 - Thumbs up for a perfect transition and a perfect illustration of your point!!! Nicely done.

  79. Jacob Johansen

    Jacob Johansen

    3 dagen geleden

    the last part about stability hits home as a software engineer

  80. Jacob Johansen

    Jacob Johansen

    3 dagen geleden

    Teflon shims could also work as a friction reducer without the need to reapply the graphite lubricant over time... its what's on the bottom of mice

  81. Blacklab412294


    3 dagen geleden

    Ok, I get why you are using water - to keep your bits cool. But why not Cutting Oil (the stuff you use when your tapping Threads) ? Water can lead to rusting (if you are using Iron), but tapping Oil tends to really cut down on friction, is great at cutting holes too. Sure you have to degrease after words, but still Water can be hard on drill bits.

  82. bill bergovoy

    bill bergovoy

    3 dagen geleden

    as for ur diatribe re global maximum/local maximum, u spent a great deal of time reciting info/math that doesnt matter. the bottom line is, examining any musical instrument. They all work perfectly. PERFECT. saxophone? every time u press a key, it opens the right amount and closes the same way, every single time. guitar, same. trombone, same, violin, it doesnt matter. the beauty is how perfect they work. the side affect is, how easy it is to determine the value by how well it is built and the material used. but the design is the same, and remains unchanged. this also isolates any variations in sound quality, is a result of the amount of skill/talent of the musician. the beauty of ur marble machine is due to the dichotomy of how complex it is, while still being able to create awesome sound. but, therein lays the problem. IT IS COMPLEX. meaning there is chance of mistakes during assembly, or maintenance, or accidental impact, and not being able to ID what might have been impacted, and or causing more damage by not being diagnosed properly then getting used more and more but, asis abundantly apparent, the creation of music is not the primary achievement. the design/assembly is as much of marvel as you cranking on a lever and pressing/pulling on levers and buttons all of it is evertainment, proving reliefaaaaaa to me and many others and for that, I thank you

  83. bill bergovoy

    bill bergovoy

    3 dagen geleden

    oh no. no no graphite powder is awesome, but not on unfinished / raw wood. if friction is a concern, you should have done a couple different things. over cut the slots, then install a low friction material where the metal parts slide on the low friction material. or, you can sand the slots, by working thru the sand paper grits, up to the highest grit you want. maybe 1000g? or, u can again sand the slots/grooves, but no need to go upward of 220g sandpaper. Then apply a few coats of sanding sealer, lacquer base. (dont let the name, 'lacquer' scare u off. This is the easiest material to apply and get awesome results. It will also penetrate deeply and allow super easy sanding. after a few coats of lacquer you can apply a few coats of wax car polish This will give u the best low resistance surface possible. the graphite is messy as you now know. but the bigger problem is that it will GUNK UP. it will get moist, attract oils, water, and gum up, creating a bigger problem whereas wax wont have any problem, except the chance of over maintenance, which can be fixed relatively quickly/easy. anyways, good luck

  84. Comic Fox

    Comic Fox

    3 dagen geleden

    “Maybe I SHOULD give up” Everyone: *No*

  85. Valsa sam

    Valsa sam

    3 dagen geleden

    See nothing is perfect so we have to work harder and harder to achieve that perfection

  86. bitbrain


    3 dagen geleden

    Hey Martin. Professional Software Engineer here. The 99.999+% case you are making also applies in Software Design. However, at some point, failure WILL happen. Even if you have optimised here 99.9999999% failure WILL happen. This is why you also should consider Resilience, or the ability how to deal with failure. For example, Tesla cars have a complete redundant computer system. In case one fails, the other will take over. (the same applies to their sensors) I don't know how to apply the resiliency principle to your project, however, only considering "failure resistance" might not be enough.



    3 dagen geleden

    Made a joke last year that I can't wait till 2031 when it finally will be complete. Now it's starting to look like I was being a little eagar, I'm pushing it back to 2035...

  88. bitbrain


    3 dagen geleden

    A BANANA 🍌

  89. n_wordmassV.3 .ͤ̀͋

    n_wordmassV.3 .ͤ̀͋

    3 dagen geleden

    It went from all wood to stainless steal and metal and stuff

  90. *ArcanHage*


    3 dagen geleden

    you could make so the machine auto fixes itself, when a marble is stuck it could be released out of the way.

  91. kainpwnsu


    3 dagen geleden

    I find putting a wrecking ball to personal work for redesign is refreshing. I'm a programmer and do this often. My best work is done when something is lost and I have the replace it using what I learned to my advantage.

  92. George Georgalis

    George Georgalis

    3 dagen geleden

    Good time to add a 1 or two octave virginal? 3D print some biotin to pluck strings, and build a rolling mechanism with per key enabling levers that drive an open clutch accept when programming tabs turn the adjusted cogs for a pluck? :-)

    • George Georgalis

      George Georgalis

      Dag geleden

      Actually, why is the inside wheel empty? Wish there were a 2 octave harp in the middle. Or, just a click track generator driven by gravity, the biggest marble of all, and programmed on the inside of the wheel...

  93. ruddyadam


    3 dagen geleden

    You can't unsee the bunnies.

  94. TheChipmunk2008


    3 dagen geleden

    Tip regarding graphite that may be useful in normal life for people who aren't building a world class musical instrument... or maybe even if you are. If you have a key that's difficult to insert. It's probably the LOCK itself... but rubbing a pencil (the higher the B rating the better, but HB (#2) works) on the key and inserting a few times, maybe repeat the rubbing ... will last months. The difference is remarkable :)

  95. oldjeff100


    3 dagen geleden

    Never give up my son

  96. Errett Fitchett

    Errett Fitchett

    3 dagen geleden

    this is probably the most unpleasant start of a video to watch, seeing you disassemble your masterpiece is tough.

  97. Adrian Stoness

    Adrian Stoness

    3 dagen geleden

    re the dry lub parts that whole wood asembly i hope ur working into the design being able to replace those with out having to tare the whole thing apart after ware and tare on thw wood from the sliding wood parts

  98. Mary da Silva

    Mary da Silva

    3 dagen geleden

    Martin - You sound so much better. A month ago or so, I was so worried about your mental state. Hearing your voice this time is reassuring that you're ok. I think you're trying to achieve as much perfection as possible however you need to design the machine to be able to handle faults. I think that is the key to your whole design. It can't be all or nothing. If you lose a marble one will notice. If that one marble destroys your machine, everyone will notice lol. So my advice for you is to identify the spots that need fail safes and design it to survive it. It may take more time but it will be worth it in the end. Keep your head high and keep designing the best machine you can. Don't give up.

  99. Bannister Nicholas

    Bannister Nicholas

    3 dagen geleden

    can't unsee the bunnies

  100. Scott Warner

    Scott Warner

    3 dagen geleden

    One quick tip for capturing angle grinder sparks is to use a vacuum. If you have enough suction it'll capture most of the sparks as you grind or cut. Have been following you since day one...Keep up the dream!