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Building the most accurate DIY CNC lathe in the world [video]
- Hasz 1y agoAlso of interest if you enjoy precision engineering: https://www.youtube.com/watch?v=sFrVdoOhu1Q&pp=ygUdZGFuIGdlbGJlcnQgYWlyIGJlYXJpbmcgbGF0aGU%3D https://www.youtube.com/watch?v=sFrVdoOhu1Q&pp=ygUdZGFuIGdlb...
- rtkwe 1y agoFor a more rough and ready, but quite entertaining, version of the DIY CNC (mill however) build there's the sage of Not An Engineer's build of a DIY CNC mill. https://www.youtube.com/watch?v=uallSKJGoug&list=PL3NwjxPeybkLhFjSfFg1iL4-XLGBo9iS3 https://www.youtube.com/watch?v=uallSKJGoug&list=PL3NwjxPeyb...
- mdaniel 1y agoI love that channel so much
- arethuza 1y agoNot CNC, but I am addicted to the Cutting Edge Engineering channel: https://www.youtube.com/channel/UC2wdo5vU7bPBNzyC2nnwmNQ https://www.youtube.com/channel/UC2wdo5vU7bPBNzyC2nnwmNQ
- brcmthrowaway 1y agoI can't believe this kid can afford an incredible amount of expensive tools.. daddys money?
- dghlsakjg 1y agoWhy cast such negative aspersions on a stranger doing good work? If you are smart and patient you can find good used machine tools for very cheap (relative to their new cost). I would guess that buying a new Honda Civic costs more than what this person has in their shop. And if you bother to watch the video, you see at the end that he takes what he makes home to a different shop, implying that this is a shared or borrowed set of machine tools. Buying a bunch of tools that will hold their value while producing more value is not a sign of being reckless with someone else’s money. Would you make such judgements about every Honda owner for spending a five figure sum?
- thrawa8387336 1y agoKnow a guy who bought a 2 trailers loads of lathes and assorted machine tools for less than 10k in the Rust Belt. Was even remanufacturing diesel engines
- heisenzombie 1y agoI also was impressed at Chris Borge's lathe build: https://www.youtube.com/watch?v=6Js8erWbsDQ https://www.youtube.com/watch?v=6Js8erWbsDQ It's small and kind of underpowered, but not useless! The central idea is to 3D print shells that hold metal parts and are then filled with concrete for rigidity and mass. Quite clever, I think.
- owenversteeg 1y agoThis guy is quite interesting, because he starts from scratch without reading or experience, so you end up with a really wonky machine, but it's wonky in unusual ways that really make you think. Like the sibling comment says, it's obvious he hasn't read the Gingery books. This sounds like I'm throwing shit, but I'm not - it's actually how I work a lot of the time. Making a mistake gives you a deeper understanding of the issue than you would typically get from doing things the right way. For example, he overheated the gravers while sharpening them, which made them soft, and now he gets to learn about annealing and temper. And indeed, in the comments, he gets: >Just for future reference on making gravers, you were correct that you do not want to get the pre-hardened steel red hot or it will lose its heat treatment. However you have to go much further than that and not allow it to heat above the desired temper temperature. For instance if it was previously tempered to a straw (yellowish brown) color but then while grinding it the steel turns blue, that means you have reduced the temper to a lower hardness. So you need to keep the steel cool and never let the temperature go beyond the desired temper temperature. You can think of it this way, hardening the steel makes it as hard as it can get (but too brittle to be good for much), then tempering reduces the hardness but makes it stronger, and this effect continues the hotter you temper it. n.b. this sort of thing is absolutely endemic in the world of 3D printing, which is why most videos are fairly useless to learn from, but the comments are invaluable.
- bluGill 1y agoWhile interesting he hasn't read the gingery books and has made several 'mistakes' that gingery tells you how todo better. Though there is plenty of fault to pick in the gingery designs they show a clear understanding of how to do things and the mistakes are compromises based on materials available not a failure to understand precision.
- fusslo 1y agoI've been following Cylo's Garage for a while. I'm excited to see where he goes. Reminds me of Applied Science meets Tom Lipton, Robin Renzetti, or Dan Gelbart.
- pillars 1y agoCyrus(creator of Cylo's Garage) written a paper on the diamond lathe design: https://drive.google.com/file/d/178KoqYAQUScSW27opubo9K794PeMKxwD/view https://drive.google.com/file/d/178KoqYAQUScSW27opubo9K794Pe... Another awesome video on precision engineering resources in the same channel: https://m.youtube.com/watch?v=FM9X_gjnleY https://m.youtube.com/watch?v=FM9X_gjnleY
- zokier 1y agoWorth noting that the lathe project itself is on indefinite hiatus right now as I understand it, so don't hold your breath waiting to see finished results.
- Joel_Mckay 1y agoMost do not understand how difficult these machines are to handle, but there are some completed specialty CNC builds around. "High precision air bearing CNC lathe and grinder" (Dan Gelbart) https://www.youtube.com/watch?v=sFrVdoOhu1Q https://www.youtube.com/watch?v=sFrVdoOhu1Q Cylo's Garage spent a lot of time exploring these designs. =3
- rfrey 1y agoPeople interested in this might also appreciate this small channel: a no-holds-barred 5 axis machine with expected sub-micron precision. I've learned a lot about what kind of components are available when budget is not an issue (I'll bet this machine will cost 100k by the time it's done). https://www.youtube.com/@kasramehraky9283 https://www.youtube.com/@kasramehraky9283
- IAmBroom 1y agoThose are the kind of CNC kept in isolated rooms, and covered in gold foil to reflect heat. No humans allowed during the measurement cycle.
- msds 1y agoNo, good thermal management with a chiller, active thermal compensation, and glass scales make um precision on that scale reasonable. 10-100x better? Sure, you’re getting into machines where the room to keep them happy is significantly more expensive that the machine…
- kragen 1y agoNormally I would assume that a YouTuber claiming to have built a more accurate DIY CNC lathe than Dan Gelbart's was full of shit, especially if he didn't mention Gelbart in the title. But Cylo's Garage is an exception. His objective is diamond-turning optics. So he does need tighter precision than Gelbart's 1μm, and he's been working toward achieving it in an astounding fashion for years—inspired, he tells us in the video, by Gelbart. This video, though? You know how people say "this meeting could have been an email"? This video could have been a web page. Or an email. It's just a set of slides with a voiceover. Save yourself the time and just read the subtitles: yt-dlp --write-info-json --write-sub --write-auto-sub --sub-lang en --restrict-filenames https://www.youtube.com/watch?v=vEr2CJruwEM For reading the subtitles file Building_the_most_accurate_DIY_CNC_lathe_in_the_world-[vEr2CJruwEM].en.vtt, http://canonical.org/~kragen/sw/dev3/devtt.py http://canonical.org/~kragen/sw/dev3/devtt.py may be useful.
- WillAdams 1y agoFor folks who are not familiar w/ machine shops, the lathe is a fundamental tool in a shop, and is the only tool in a shop which can replicate itself --- there is even a book series which uses this conceit, the "Gingery Books": https://gingerybookstore.com/ https://gingerybookstore.com/ where Vol. 1 has one setting up an aluminum casting foundry in one's backyard, and Vol. 2 has one using it to make a lathe which is then used to either improve itself or make a better lathe, then one uses it to make the balance of the tools in a machine shop.
- jjk166 1y agoA lathe can't actually replicate itself completely. Specifically, a lathe can only make ways smaller than its own cross slide's stroke. It would also be impossible to make a typical lathe bed on a lathe, though you theoretically could design an unconventional lathe bed that is possible to make on a lathe, even if grossly impractical. The real starting point for machine precision is rubbing 3 granite plates together.
- IAmBroom 1y agoLathes can certainly make cylinders, and a tube-based lathe bed is not a stretch. A lathe can't replicate its own assembly, of course. It can't seat the spindle in the constraint bearings, for instance. A CNC (without the word lathe) can make most of itself, and possible all. Nope: certainly all, if two of its dimensions fit within its work volume.
- jjk166 1y agoBut it can't make cylinders as long as its own guide ways.
- ekaryotic 1y agomost lathes have a hole in the chuck to feed the work through. so if the material is ground down by hand to a diameter small enough to fit in the hole then to be turned and then removed and flipped over it's possible.
- pillars 1y agoResults of Diamond lathe testing photage: https://m.youtube.com/watch?v=PuSHpD7hiQ0 https://m.youtube.com/watch?v=PuSHpD7hiQ0
- class3shock 1y agoIt's so cool to see Cylo get posted here. I remember finding his channel via an air bearing video years ago and being so impressed at what a (then) kid was doing, cool to see him still doing stuff and getting recognized for it. For anyone enjoying this Dan Gelberts video on his lathe, which I think inspired this, is worth watching. Robin Renzetti also does cool precision focused stuff but I don't know if he does Youtube much anymore.
- SilverElfin 1y agoIt would be interesting to see someone use basic hand tools to build up the evolutionary steps towards high end machining or manufacturing machines of all kinds. Sort of a playbook to restart civilization.
- nighthawk454 1y agoHow To Make Everything on YouTube is along those lines https://youtube.com/@htme https://youtube.com/@htme
- lysace 1y agoIt's kind of sad how much knowledge is hidden inside companies. (I'm assuming something like this was achieved decades ago in certain companies.)
- mitthrowaway2 1y agoIt has. The Moore Special Tool Company makes diamond turning lathes much like this one. But replicating that precision on your own is still an immense achievement. As Dan Gelbart once said: "Building your own lathe is an admirable ambition. Building one with micron accuracy is a terrible illness which, at my age, has no cure."
- nullc 1y agoIt's pretty much whiplash vs software. In software you get access to the source code for a lot of SOTA industrial sofware in almost every field. In mechanical engineering/machining/etc. you mostly only get access to educational materials simplified to only demonstrate the concepts... plus a scant few sacred tomes.
- pontifier 1y agoI recently saw another video about a high accuracy 3d positioning stage. The differences and similarities were very interesting. For instance, both used rigid rods with ball joints for accuracy, but wildly different encoders and testing methods. https://youtu.be/MgQbPdiuUTw?si=5r0DVsxVT1owyKk6 https://youtu.be/MgQbPdiuUTw?si=5r0DVsxVT1owyKk6