David Preiss

David Preiss

CVDAQ

CVDAQ

2 Bar Metrology

2 Bar Metrology

Drag knife

Drag knife

CF 0.08" thickness 5-Axis

CF 0.08" thickness 5-Axis

5-Axis Swarf

5-Axis Swarf

Пікірлер

  • @opabodejide7643
    @opabodejide764319 күн бұрын

    nice work. can we get the .STEP of the design..? looking forward to hear from you

  • @DaveEtchells
    @DaveEtchellsАй бұрын

    Only just now found this in my feed; good job (for once), YT algorithm! What a great project, thanks for sharing the results of all your research about the type of graphite, critical dimensions, etc. Besides being fascinating in itself, it’ll save many, many people hours of frustration and wasted money finding the right graphite. Great, great project!

  • @amitrakshe5773
    @amitrakshe57732 ай бұрын

    Can graphite be used to reduce salts from water

  • @user-oe7lz2vi3b
    @user-oe7lz2vi3b6 ай бұрын

    Вот на чём должен был летать гиперлуп, а не на магнитном подвесе.

  • @mxcollin95
    @mxcollin958 ай бұрын

    Super interesting video! 👍

  • @ianboard544
    @ianboard54410 ай бұрын

    what advantage does porous material have over just taking a flat plate and drilling a lot of small holes?

  • @RobertSzasz
    @RobertSzasz11 ай бұрын

    I wonder if air bearings could run on the outside corners of T or V 2020 aluminum extrusion. For much of 3d printing it would make for simpler designs, easier parking for transportation (just turn off the air and it locks in place) and fewer wearing parts over time.

  • @RedBuit02
    @RedBuit02 Жыл бұрын

    Hi David, I’m an engineer at New Way. You did a great job with these bearings. I’m shocked you were able achieve sufficient flatness with 600 grit sandpaper.

  • @mwalczak5603
    @mwalczak5603 Жыл бұрын

    Very interesting. For the air bushing could you used a reamer when boring the graphite?

  • @bmtrout100
    @bmtrout100 Жыл бұрын

    Thank you!!!

  • @satanaz
    @satanaz Жыл бұрын

  • @sarahdelacruz5208
    @sarahdelacruz52082 жыл бұрын

    @:52, i should call her.....

  • @Johnholmes003
    @Johnholmes0032 жыл бұрын

    Any chance we can get the cad file to make the housing? Thanks buddy.

  • @Johnholmes003
    @Johnholmes0032 жыл бұрын

    What is the cfm these use at 60 psi

  • @nemoyu7680
    @nemoyu76802 жыл бұрын

    Great work. But how to prevent carbon powder falls of graphite?

  • @nasiruddinabdulnasir5005
    @nasiruddinabdulnasir50053 жыл бұрын

    any recommendations on the air supply, what pump to get etc..

  • @TheGroundpork
    @TheGroundpork3 жыл бұрын

    Really great explanation of the obstacles you overcame! Thank you!

  • @coopermullin3627
    @coopermullin36273 жыл бұрын

    Do you have some kind of equitation to calculate for amount of psi to weight for lift to happen?

  • @iEnergySupply
    @iEnergySupply3 жыл бұрын

    Just finished mine! Great job!

  • @bob1947essex
    @bob1947essex3 жыл бұрын

    why is the sound so low

  • @shahuni
    @shahuni4 жыл бұрын

    Great video. You must start a discord community...

  • @lawriealush-jaggs1473
    @lawriealush-jaggs14734 жыл бұрын

    Sound is so low I can't hear what you hahe to say. A pity because I wanted to hear it.

  • @IronRiviera
    @IronRiviera4 жыл бұрын

    Very nice project. I like fooling around with this type of stuff as well.

  • @ElementalMaker
    @ElementalMaker4 жыл бұрын

    Awesome stuff!

  • @merkabaenergy9558
    @merkabaenergy95584 жыл бұрын

    5:19

  • @africanelectron751
    @africanelectron7514 жыл бұрын

    Awesome stuff, I used to install/service CMMs.

  • @ErnestDuarte
    @ErnestDuarte4 жыл бұрын

    Good news I searched DIY air bearing and your channel popped up on top. Is there a reason alot of people are using low psi "60ish". If the air bearing load is surface area multiplied by the atmospheres of pressure is the plenum the limiting factor of pressure? I have a small machine shop and am thinking of building a high precision lathe.

  • @vijayvjn6874
    @vijayvjn68744 жыл бұрын

    Thanks for taking the time in making this video, i saw dan gelbarts video of his lathe years ago and really appreciate seeing how diy air bearing can be made

  • @lazyh-online4839
    @lazyh-online48394 жыл бұрын

    I've thought about using porous Terra Cotta or mixing starch/flour with a non-porous ceramic slurry to create a controlled porous ceramic substrate for a hydrostatic air bearing using water at really high pressures, this should increase both load capacity and stiffness by several orders of magnitude compared to air bearings.

  • @KLTan-zp6xr
    @KLTan-zp6xr4 жыл бұрын

    Will this work with an aquarium air stone ?

  • @boltonky
    @boltonky4 жыл бұрын

    Brilliant little video and best part very clear.....still find it strange that i when i was in need i found heaps of random info. Also i want to know who down-voted at least leave a comment why as long its not abuse

  • @lpjunction
    @lpjunction4 жыл бұрын

    A small number of down votes should not be taken seriously. The upvote/downvote buttons on cell phone is just millimeters apart, some people even flipped these buttons by accident.

  • @jimmyoverly3512
    @jimmyoverly35124 жыл бұрын

    This is an exceptionally well done project and video (English is not my native language)

  • @blueline308
    @blueline3084 жыл бұрын

    shame ya cant hear the video

  • @perspectivex
    @perspectivex4 жыл бұрын

    That's really cool. Based on your experiments do you have any thoughts on potential challenges of making a high speed CNC spindle using this kind of air bearings (but probably Ben Krasnow's technique for boring precision-fit round holes by cutting grooves and creating a 'file' from one of the spindle bar stock pieces)? Like say, 'top three' problems?

  • @adamsiwek7995
    @adamsiwek79954 жыл бұрын

    Awesome video, keep up.

  • @wktodd
    @wktodd4 жыл бұрын

    You may have seen radial bearings made of numerous radial sections , which would make Ben K's sanding and filing methods suitable. kzread.info/dash/bejne/noOIudpvadDNmLA.html Great idea btw, I predict explosive channel growth commjng your way :-)

  • @ovnprojects2640
    @ovnprojects26404 жыл бұрын

    Nice, some how I think this is going to be the rage in 3D printing in couple of years 🤔

  • @LanceThumping
    @LanceThumping4 жыл бұрын

    I agree, I feel like these shouldn't be all that expensive to make reasonably accurate for 3D printing and would allow printers to move quickly with less friction for high speed printing.

  • @MF175mp
    @MF175mp3 жыл бұрын

    I doubt that consumer grade printers would ever use air bearings as the ball bearing rails are just 100% sufficient for the job. The problems lie elsewhere. Also the real linear rails are not advantageous for 3d printers either, the round rod system is almost as rigid in that application and the rigidity isn't an issue really

  • @nixie2462
    @nixie24624 жыл бұрын

    Like and subscribe if you came from Applied Science channel.

  • @LowPriceEdition
    @LowPriceEdition4 жыл бұрын

    Clever.

  • @mxcollin95
    @mxcollin954 жыл бұрын

    Really cool! Good job explaining.

  • @BIGWIGGLE223
    @BIGWIGGLE2234 жыл бұрын

    This is great!! I was sent by Applied Science as well. And man, I almost can't tell you 2 apart vocally!! Your videos are great btw. Not sure if you'd like for your channel to grow, but I'm betting it will become something everyone will love.

  • @MrChangCJ
    @MrChangCJ4 жыл бұрын

    you remind me of Ben Krasnow from Applied Science! Great content! Keep up the vids :)

  • @nixie2462
    @nixie24624 жыл бұрын

    He was first on this video. XD

  • @nicholaswilliams4507
    @nicholaswilliams45074 жыл бұрын

    Another thing; to measure deformation and condition of the bearing surface under load you would probably get pretty far by bearing it on top of an optical flat

  • @nicholaswilliams4507
    @nicholaswilliams45074 жыл бұрын

    Excellent work David. A couple months back I experimented with using carborundum/alumina aquarium bubblers. Indeed, lapping them flat was difficult and required a diamond surface. They produced substantial and very fine bubbles once in the 1000 grit range or so. Regarding the radial attempt, you made what would be classified more accurately as an "air bushing". For likelier success without exact tooling, try partial circumferential coverage using 3 or 4 individual arc segments equally spaced. In doing my experimenting I didn't build a cage and sealed 5 faces using resin, and while lapping I supplied air so as to "flush" the debris - it helped enormously in keeping the abrasive surface fresh, but I've also not experienced with such a great lubricant as graphite so it may not be as helpful. I see what I believe was your supplier on eBay and am snagging a box. There are some good papers on the effects of the "dead air" cavity and plenum shape, btw. Get in touch if you'd like to collaborate - my application is in the nanopositioning realm as well as conventional machine tools.

  • @LaneyMachineTech
    @LaneyMachineTech4 жыл бұрын

    Cool idea! I will try this too. - Adam

  • @nelsonashbrook765
    @nelsonashbrook7654 жыл бұрын

    Are you Tom Lipton's kid?

  • @AlexWhittemore
    @AlexWhittemore4 жыл бұрын

    Useful, yet brutal.

  • @samuelschuur7044
    @samuelschuur70444 жыл бұрын

    This is great! Have you considered looking at the non porous type air bearings?

  • @charlesspringer4709
    @charlesspringer47094 жыл бұрын

    Try aquarium air-stones?

  • @jackal8279
    @jackal82794 жыл бұрын

    Would love to make some of those linear air bearings for a 3d Printer X Y gantry. I bet they are very quiet while in operation?

  • @irrelevantfish1978
    @irrelevantfish19784 жыл бұрын

    Air bearings are actually pretty noisy on their own (they're the source of the constant hiss in this video: kzread.info/dash/bejne/pXqmuMaof8vbYbQ.html), and that's before factoring in compressor noise. And why do people keep saying they'd be awesome for 3D printers? Sure, using air bearings could make your positioning system a few microns more accurate than cheap linear guides, but who cares when the remainder of the system has tolerances measured in the hundreds of microns? Your time/money will be far better spent in a myriad other places first. Personally, I'd love to try my hand at building an air bearing mill or lathe spindle. It seems like you could build yourself something really nice for pretty cheap using air bearings and carbon fiber, and since the only ways to buy yourself steel-working capability is to play eBay roulette or drop >$5k on something commercial, it's a project that might actually make some economic sense.

  • @samuelschuur7044
    @samuelschuur70444 жыл бұрын

    @@irrelevantfish1978 once again though in the case of a mill or lathe your argument about the 3d printer is still an issue...

  • @irrelevantfish1978
    @irrelevantfish19784 жыл бұрын

    @@samuelschuur7044 I'm afraid I can't figure out what you're trying to say. Would you please clarify?

  • @samuelschuur7044
    @samuelschuur70444 жыл бұрын

    @@irrelevantfish1978 I meant that for the most part in the mill you propose your precision is not limited by the air bearings but really your other component choices just like your example with the 3d printer.

  • @irrelevantfish1978
    @irrelevantfish19784 жыл бұрын

    @@samuelschuur7044 That's true, but mills and lathes are almost always more precise than 3D printers, usually enough that air bearing spindles' lower runout will lead to a noticeable improvement. But even if that's not the case, and the machine is a bucket of backlash and missed steps, you'll still improve machine dynamics, leading to longer tool life, better surface finish, and faster material removal.

  • @StevePotter
    @StevePotter7 жыл бұрын

    David, how did this go when you did the actual cutting? I assume you are using a Handibot as I am? Can you do another screencast showing more about how you set up the setups? How to set the stock, and if there is overlap? How to exactly align the workpiece or machine as you move from tile to tile? I want to have text carved (engraving with a Vee bit) that spans several tiles. How to divide the text so it overlaps seamlessly across multiple tiles?