Making chainsaw robot, carving logs

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The robot arm I used:
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When I was offered the opportunity to beta test an upcoming robotic arm from Tormach, I knew exactly what I wanted to do with it. CNC chainsaws baybeeeeee. Aside from being fundamentally awesome, it is a very interesting software problem. Since I didn't have to build the arm I was able to focus the project and the video on the software challenges of making something like this work. Thank goodness I didn't have to build the arm because the software almost killed me. I can imagine all kinds of next steps for this creation like machining textures with the chainsaw or cutting topiaries. I hope you like it!
* Low Polygon Labrador Model:
Other great things (your purchase helps support this channel):
* I use a glowforge pro for rapid prototyping and it's great. You can $500 off a Glowforge pro here:


  1. Stuff Made Here

    Stuff Made Here11 kun oldin

    Hope you enjoy this robot as much as I do 🙂. A big thanks to everyone who helps to make these projects possible through their patreon support. If you'd like to help me make more projects like this (and get more behind the scenes content, an AWESOME discord, livestreams, etc) check out

  2. Michael McGregor

    Michael McGregor9 soat oldin

    Your videos are awesome! Idea: Mirroring programming While the saw is attached to the arm, have a zero point. Have a professional carver carve something while the arm records the movements. Once they are done, save the the program. Now, every time you place the log and robot arm at zero, you can just run that program... would be awesome! Mass produce famous carvers works at a fraction of the price.

  3. Michael McGregor

    Michael McGregor9 soat oldin

    Your videos are awesome! Idea: Mirroring programming While the saw is attached to the arm, have a zero point. Have a professional carver carve something while the arm records the movements. Once they are done, save the the program. Now, every time you place the log and robot arm at zero, you can just run that program... would be awesome! Mass produce famous carvers works at a fraction of the price.

  4. mainframehacker

    mainframehacker11 soat oldin

    do you think it's possible to make a machine or system of machines that will grow you the perfect plant? like look at it and determine what it needs and then give it to it? control sunlight, water, minerals, etc.

  5. Plfj Aa

    Plfj AaKun oldin

    If you would have cut with a water jet you will have quicker cutting results.

  6. Matthew Crow

    Matthew CrowKun oldin

    Now you need a huge enclosure for the bar oil you will need to cut wood!

  7. Letsitele AGSgemeente

    Letsitele AGSgemeenteSoat oldin

    This was really impressive I have to say. Well done!

  8. Bunny Killer

    Bunny KillerSoat oldin

    luv your channel... luv your style... got an idea for you, make an arm that can throw the worlds fastest and perfect dart game. Stipulations: its got to function like a human arm e.g. it pivots at an "elbow" and at the "wrist". A preloaded magazine is allowed to hold the proper number of darts. Trying to decide if full 360 degree rotational movement at the "elbow" is allowed or it is to move forward, release dart and then return to a start position ( < 180 degree arc)... The full 360 rotational movement would be the faster but setting up the electrical would be harsh unless the control signal was wifi or bluetooth. The main power could run off of a slip ring/contact brush, but as mentioned, the signal for the controls.... hmmmm ;) ...

  9. Bruno

    BrunoSoat oldin

    So if you ever find a $20000 robotic arm lying around your house, this is definitely something you can do with it.

  10. Alex Fox

    Alex Fox2 soat oldin

    shoe shiner robot?

  11. diglory89

    diglory893 soat oldin

    Awesome job !

  12. Mack Burns

    Mack Burns4 soat oldin

    I need you to make a gun with a hair trigger, thanks.

  13. 0HK4N

    0HK4N5 soat oldin

    I work in 3D analysis and 'm really curious about how your code looks like. Did you release it anywhere? I haven't been able to find it 🤔

  14. Toothless Blues Boy Norman

    Toothless Blues Boy Norman5 soat oldin

    Ok, I got one for you, I want you to build a stained glass window making robot. They say that's some robotic barrier or something.☮️

  15. David Eriksen

    David Eriksen5 soat oldin

    the effort he put into the coding got my up vote

  16. Phlosen

    Phlosen6 soat oldin

    The Robot with the googly-eyes reading the captcha really caught me off guard :D

  17. Josh Holder

    Josh Holder7 soat oldin

    As an engineering student, any time I watch one of this guys videos I'm absolutely shocked. Highest level of complexity of projects of any maker youtuber imo

  18. Bob Guy

    Bob Guy7 soat oldin

    3:03 100% this is why I love this channel. Informative, interesting, and the driest deadpan humor imaginable.

  19. Theflyingcandleguy Me

    Theflyingcandleguy Me8 soat oldin

    🤦‍♂️That is a raker; not an anti kickback tooth🙄Tour robot is pushing the saw into the wood. You do not force the cut. You let the saw cut at the speed it wants to. It will not cut faster if you press harder. Normally that wood just kill the engine. If your motor is powerful enough to keep going you are just creating heat and eventually the chain will snap.

  20. Theflyingcandleguy Me

    Theflyingcandleguy Me8 soat oldin

    😂I love your presentation. I have thousands of hours of Chainsaw time. The reason chainsaw art is so impressive is the amount of tip cutting involved which is a slightly dangerous and difficult to master endeavor especially if your upper body fitness is a disaster. You can carve up a piece of wood in reasonable amounts of time with a combination of slabbing and then tip cutting. Beware of fatigued stability muscles, loose chains, dull chains, dirty logs, hardwoods, and especially be very cautious of old chains, kickback, and flying chunks of wood which will surprise you with a whack to the face at some point.

  21. TMHF

    TMHF8 soat oldin

    It honestly gives me hope for the future knowing that there are people this brilliant that can hopefully help right the ship that we all seem to be sinking on.

  22. Florian Krentzel

    Florian Krentzel8 soat oldin

    *Everyone that took Calc 3 in college appreciated this video.*

  23. Mathew Ubachs

    Mathew Ubachs8 soat oldin

    What iPad app do you use for all your drawings?

  24. Michael McGregor

    Michael McGregor9 soat oldin

    Your videos are awesome! Idea: Mirroring programming While the saw is attached to the arm, have a zero point. Have a professional carver carve something while the arm records the movements. Once they are done, save the the program. Now, every time you place a log and robot arm at zero, you can just run that program... would be awesome! Mass produce famous carvers works at a fraction of the price.

  25. Sanjay Krishnan

    Sanjay Krishnan11 soat oldin

    Why not scan the wood on the turntable into a pointcloud?

  26. mainframehacker

    mainframehacker11 soat oldin

    do you think it's possible to make a machine or system of machines that will grow you the perfect plant? like look at it and determine what it needs and then give it to it? control sunlight, water, minerals, etc.

  27. Home Home

    Home Home11 soat oldin

    Ohhhh dude I am 1 week late

  28. J Smith

    J Smith12 soat oldin

    Need some chainsaw bar oil my man. Even electric chainsaw need it.

  29. Zodaxa Rohalxo

    Zodaxa Rohalxo12 soat oldin

    the wig and crown absolutely sold it made it x100 times better

  30. Tanner Filip

    Tanner Filip12 soat oldin

    Not gonna lie, when you went into the password thing, I was 100% expecting you to say "and that's why I use Dashlane"

  31. qwerty

    qwerty15 soat oldin

    hmm 🤔 not sure if it is a good idea to build a machine with a "kill radius"

  32. Dmitry Yershov

    Dmitry Yershov15 soat oldin

    Nice book in the intro!

  33. Will Farley

    Will Farley15 soat oldin

    Do you have any recommended topics I could research to learn how to build crazy stuff? I've got software engineering down. I've been learning 3D printing / modeling and electronics / ardrino stuff but the metal working is beyond me. I'm not even sure where to start or what questions to ask. I'm currently working on printing a CNC milling machine though I don't know what I'll use it for lol. Any direction would be appreciated. Love all your stuff btw, you're a real inspiration!

  34. Justin Maess

    Justin Maess15 soat oldin

    he's just making a prototype for the killer robot army he's going to use to take over the world

  35. ThomasXNT

    ThomasXNT15 soat oldin

    I really like the hidden details in the background: " Why buy one when I can do a much worse one for free." , "When you have a bolt that's really stuck, you get way out here, and snap your wrench in half." , "Dance 'till you're dead 10 - hours" (on monitor) , "why are weener dogs SO long" (on monitor) , "wife made here" , the robot talking back.. Having those pop up when you don't expect them makes it so enjoyable! Great job, we love it!

  36. Elder Frost

    Elder Frost16 soat oldin

    I laughed at the snap your wrench in half joke, totally haven't done that before

  37. Shawn Tilton

    Shawn Tilton17 soat oldin

    As someone who uses a chainsaw on a daily basis, I must comment, that it's clear that your trying to push a dull butter knife through a piece of wood. In other words, it's dull. The second you put on a new, or freshly sharpened chain, you will see a world of difference. If you don't know how to sharpen it, you should probably take it to a shop, where they generally charge $9 to $12 per chain. Also, in on of the shots, the chain was loose. It must have the proper tension, and be Sharp.

  38. Reuben Rushton-Taylor

    Reuben Rushton-Taylor17 soat oldin

    Still waiting for the lockpickinglawyer video on your door lock!

  39. Tracey Elliot

    Tracey Elliot18 soat oldin

    yup ................. youtube unsubbed me yet again ............. resubbed for the forth time now STOP IT UZnick .........ITS GETTING OLD REAL FAST yt ai is broken AF

  40. Ben Groebe

    Ben Groebe19 soat oldin

    As far as optimizers go, when I run into false extrema with gradient methods I've found that simulated annealing works pretty well and is usually pretty fast. At worst, you can use it to find a good starting position for a gradient approach.

  41. Fateh Aliyev

    Fateh Aliyev19 soat oldin

    When using gradient ascent or descent, remember to use momentum.

  42. Peter Shinn

    Peter Shinn19 soat oldin

    The funny thing is that you didn't even bother to ask someone who uses chainsaws whether or not a pole saw could cut a log. Obviously you figured out the answer, it can't! A pole saw is meant for small branches. Heck, it probably even says that in the manual, which you always brag about not reading. :)

  43. Coby Bentley

    Coby Bentley19 soat oldin

    how many computers does this guy have lol

  44. M L

    M L19 soat oldin

    You asked for: how can you help in 2021? You can do a *Good* rocket and send it with a camera *not the fish bowl lense one* to the space and finally stop the debate between flat earth vs round, just x fun, but actually gonna be viral and you gonna help people stops the debate

  45. REMIX The Observer

    REMIX The Observer20 soat oldin

    Heslo what App are you using in 4:50 i cant figure out is it on android too ? Tank you

  46. Kyle

    Kyle20 soat oldin

    So... honest question here... Why didn't you iterate off of the pumpkin carving setup for this machine? I know it's not as cool as chainsaws - but you'd have the potential for some amazing functional 3d CNC work that could push the community forward (especially if you're willing to open-source your work) and also provide you with some very unique patents (which you could use to ensure that the community doesn't get bulldozed by some company that wants to own sole rights to this kind of tech.) I love your content, and expanding it beyond casual youtube shenanigans to create/evolve the industry would be mind-blowing.

  47. thenoobthisis

    thenoobthisis20 soat oldin

    When will you send the lock you made to lock picking lawyer

  48. SergentDeathJack

    SergentDeathJack20 soat oldin

    Should try to use a camera to try to use it as a ref point for the saw blade.

  49. Ernst Sjöstrand

    Ernst Sjöstrand20 soat oldin

    Always run your python code with PyPy! Would love to see V2.0 of this! Or maybe that would be 0.2... ;-)

  50. drip

    drip21 soat oldin

    This is how mecha anime start

  51. Ma Li

    Ma Li22 soat oldin

    Could you... attach an axe to the robot arm? I'd bet it would make an even nicer dog. And be even more deadly.

  52. Jake Baber

    Jake Baber23 soat oldin

    The editing for your videos has much more personality behind your content. It makes an already awesome video exponentially more enjoyable. Michelin Star for content and another for editing

  53. Akshay khanapure

    Akshay khanapure23 soat oldin

    Can you make a football defence machine 😀😀😀

  54. CC Official

    CC OfficialKun oldin

    What ever happened to the lock picking lawyer picking your lock

  55. Jim K

    Jim KKun oldin

    Burning blade ... Property sharpen your chain. Great video!

  56. Thecoolyoyo

    ThecoolyoyoKun oldin

    It’s such a relief that robots can be just as stupid as me.

  57. Sabi1234567890Asdf

    Sabi1234567890AsdfKun oldin

    I love my terms for my ratchets. Pleas come off... I'm not asking...I'm getting annoyed... and my cheater bar is ok f you somthings going to break.

  58. Zack Higgins

    Zack HigginsKun oldin

    15:21 looks like he's been trying to improve the haircutting robot.

  59. ceerw buty

    ceerw butyKun oldin

    "And I knew in my heart I could make a much worse one for free" the words I live by

  60. Andrew Samoil

    Andrew SamoilKun oldin

    This is gold

  61. Malcolm O

    Malcolm OKun oldin

    Your code would be way faster if you didn't use a language designed for text processing...

  62. ceerw buty

    ceerw butyKun oldin

    Chainsaw tooth aggressiveness is a whole new problem.

  63. OneShotWizard

    OneShotWizardKun oldin

    I love your videos! Thank you!

  64. Jose Ferreira

    Jose FerreiraKun oldin

    Your videos are just excellent man. PS. Somebody knows what drawing software is that on the ipad?, i'm dying to know.

  65. Victor Blaer

    Victor BlaerKun oldin

    Everyone, lets check out his Kiwico!

  66. Victor Blaer

    Victor BlaerKun oldin

    Love your content and so impressive how smart you are. For your python setup, could you tell us what it is? Many thanks!

  67. Christopher Tyler

    Christopher TylerKun oldin

    The dog I think turned out AWESOME wow. Also. Chains on chainsaw bars need oil, if they r not lubricated enough the bar cat stretch and the chain can fly off

  68. Dosank

    DosankKun oldin

    I like how the level of danger in these projects keeps going up with each video, i am expecting an avengers level threat by the end of 2025

  69. Albert Cavazos

    Albert CavazosKun oldin

    So this is what Michael reeves would have been had he not dropped out of college to be a crackhead. Nice.

  70. Logan Flowers

    Logan FlowersKun oldin

    take a couple thou off of the anti kickback teeth, it'll be fine

  71. Willym Weir

    Willym WeirKun oldin

    Starting my kid on kiwi next week!!!!

  72. PEWPEW

    PEWPEWKun oldin

    Not an engineer, but am a chainsaw wielder. I think the problem you were having with the wood is a combination of not having the proper chain/bar combo for carving, the chain not being properly sharpened, and not having enough RPMs to cut through it. Solution: Better bar/chain, a good file, and a stronger motor pulling at 12k RPMs.

  73. Ben F

    Ben FKun oldin

    I'm in a robotics coding class in college right now. I relate to the cycle of frustration immensely. "This should work, why doesn't this work? I forgot... I'm just dumb" lol.

  74. J.H. Oldman

    J.H. OldmanKun oldin

    This is what happens when your brain is too big for your head.

  75. Crasheli

    CrasheliKun oldin

    16:47 his face🤣🤣🤣

  76. Jeremiah Meachum

    Jeremiah MeachumKun oldin

    File your rakers down Bud. That's what we call those in the logging world. 3 to 4 passes with a good metal file on each one of those rakers and you'll be good to go, The chain also has to be sharp or sharpened.

  77. jeffrey orrell

    jeffrey orrellKun oldin

    Chainsaw tooth aggressiveness is a whole new problem.

  78. fatrobin72

    fatrobin72Kun oldin

    my first Big 3d print was that model... as a gift to cheer up my other half after her parents black lab passed away...

  79. Bryan Shepherd

    Bryan ShepherdKun oldin

    Him: "My wife also grew up making things, so I thought it would be interesting to hear from her, instead of me for once" Him: "What's in the box?" Her: "Oh electroluminescent sculptures" Lol

  80. Marco Pichler

    Marco PichlerKun oldin

    What app do you use on your ipad?

  81. Sebastian S

    Sebastian SKun oldin

    hey you could glue together 2x4 pine instead of trying to cut a log of oak.

  82. Rhyme& Reason

    Rhyme& ReasonKun oldin

    Did you forget to add an oiler in your custom chainsaw? Chainsaws need oil in the bar groove.

  83. Bigcubefan

    BigcubefanKun oldin

    I thought the same!

  84. Blain Bowman

    Blain BowmanKun oldin

    What about a dart gun for a game of darts or something along those lines? I am disabled and can't really throw a dart to play a game of darts with my friends or family.

  85. fernyga1

    fernyga1Kun oldin

    he is saying that is cheaper to make this instead of buying a wood bear for 2k but he spent 900k on this robot

  86. Andrew Fornes

    Andrew FornesKun oldin

    You should come to New Bern, North Carolina. Our mascot is the Bear and we have tons of wooden and ceramic bears outside different shops and parks.

  87. Rudolf Wickond

    Rudolf WickondKun oldin

    I think a cage from wire mesh would be more reasonable for safety around the chainsaw-robot

  88. DynamiteYT

    DynamiteYTKun oldin

    Anyone else see ‘dance till your dead ‘ and ‘why are sausage dogs so long’ in the background lol

  89. The European Lynx

    The European LynxKun oldin

    Idk maybe I am kinda dumb here but for the coding why would you not start with the points closest to the center and a 360°° Angle (aka twice the same cut) then instead of testing every angle you simply do a half aproximation so it checks 180° next then either 90° or 270° depending on if that cut goes into material or not and so on for about 5 or 10 steps (I doubt a chainsaw would be any more accurate than that. then repeat that for all relevant points until your initial structure. (aka any point that concave with a reasonable precision so points can for example be no closer than 5 cm together which would be about the accuracy I expect for this tool.) Once all those have been computed you simply do the same but in a single cut for all convex points. After that you would have the robot execute the found steps in reverse order. This should result in a reasonably fast program while allowing relative good precision. The only downside to this solution is that holes would be impossible to calculate so for example the dog legs would need to be connected to the body. I have thought of another solution that technically would allow holes in structures however it would only allow low polygon count inputs.

  90. Salvadore Bertolone

    Salvadore BertoloneKun oldin

    arent there a bunch of cam solutions that already do all this?

  91. Chris Wilson

    Chris WilsonKun oldin

    (Oscar, age 5, says) This robot arm is really interesting. I like it when it says "stay back, I will kill you."

  92. Nighthawke70

    Nighthawke70Kun oldin

    Several items that will help out a ton. An oiler for your chain. A chain that is designed for feller/buncher systems. These have more teeth per foot and are more aggressive in cutting. No kickback, your bot has strength in its joints to prevent any kickback from breaking things. The bar itself needs to be twice a strong as a normal consumer level bar. A bar designed for feller, buncher, firewood processor system is higher recommended. Look up Pacific Trail Manufacturing Systems for a decent selection. Make sure it'll fit your current setup, or you'll be cutting a new mount.

  93. Rudolf Wickond

    Rudolf WickondKun oldin

    Why not use a genetic algorithm for the search? Its less likely to be stuck in a local maximum.

  94. Jacob

    JacobKun oldin

    Ok take that robot and put a plasma cutter on it and make the firepits that are shaped like a ball with the cool designs

  95. Ben S

    Ben SKun oldin

    Get a haircut from it

  96. Phil Berg

    Phil BergKun oldin

    Loose the chainsaw and install a router and use it like a giant dremel, then you will be able to do plunge cuts then you can modify a cnc computer to run your robot arm . Awesome work

  97. danteelite

    danteeliteKun oldin

    Hey. I just want to say that you’re the reason I started exploring more fabrication and tech builds, why I’m typing this in my first ever apple product (iPad Air 4 256gb with gen2 pencil! You made it look so amazing I had to get one!) and why I’m ordering a glowforge soon! (If you do a sponsorship, I’ll happily use your link or whatever.) You still make most of this look like wizardry, but you’ve boosted my excitement for nonsense builds a million fold! I’ve been doing small scale builds, crafting, leather and basic 3D printing, but I plan to get into much more engineering. I have cancer and started crafting as a necessity to help support myself and my mother, but you’ve helped me see how ridiculous and fun it can be. Thank you!

  98. Kostas Drakakis

    Kostas DrakakisKun oldin

    *********HELP*HELP*HELP************* If anyone knows any of the songs included in this videio please help me by replying with the title of the song

  99. Luipr

    Luipr19 soat oldin

    darude - sandstorm, look it up

  100. DMVMedien

    DMVMedien2 kun oldin

    Wonderful proof for what mathematics is important for in engineering and every day live

  101. Areeb Haider

    Areeb Haider2 kun oldin

    please send your unpickable lock to the lock picking lawyer

  102. Casey Dahlin

    Casey Dahlin2 kun oldin

    BSP. Break the outer material into convex polyhedra, enumerate the planes of the faces of each resulting polyhedron as potential cuts.


    SANTA GAMING2 kun oldin

    I just want a writing machine that knows my handwriting to complete assignments

  104. dcoog anml

    dcoog anml2 kun oldin

    For those wondering, at 14:30 that's the exquisite "Dance 'till your dead || 10 hours " by Nemesis, not the more mainstream "Dance till you're dead 10 hours" w 52m views.

  105. Klaas J

    Klaas J2 kun oldin

    i hate kiwi co

  106. Joe Navo

    Joe Navo2 kun oldin

    There is a relatively easy way how to calculate the gradient ascent, even if you have multiple maximum points. Start scanning a linear line, let's say along the length of the object starting near the edge, and record the heights. repeat that with a rough distance, let's say 6-7 mm scanning another line parallel to the first one and recording the heights again. Do it until the object is roughly scanned, which should be a couple of lines, and should happen quickly. Repeat the same on the perpendicular direction along the width of the object, again a couple of parallel lines. Once finished, you have obtained a rough heights matrix. Let's assume that you've discovered that this height matrix includes 3 maxima (maximum points) All you have to do now is get the height sensor to do the standard algorithm of gradient ascent you used before and start with the nearest point next to each maxima and repeat that 3 times (once for each maxima). Once done, you compare the 3 heights you've got and take the highest one, which is your point. In order to avoid mistakes, when deciding on how many maximum points the algorithm should check after the initial scan, just make a condition that the difference between maximum heights should be higher or equal to the distance between the linear lines you measured initially. That way, you reduce the to-be-measured points into minimum number possible. Good Luck Lemogan

  107. elorz007

    elorz0072 kun oldin

    1:08 so, the basic idea is attaching a custom chainsaw to the end of a robotic arm. Please, no.