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.

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!

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

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

Awesome stuff!

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.

Just finished mine! Great job!

Super interesting video! 👍

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.

Really cool! Good job explaining.

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

Awesome stuff, I used to install/service CMMs.

Awesome video, keep up.

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

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

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

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

Thank you!!!

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

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

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.

Will this work with an aquarium air stone ?

Can graphite be used to reduce salts from water

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.

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

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

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

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

What is the cfm these use at 60 psi

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

Clever.

Dude you are cool

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

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?

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?

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.

Try aquarium air-stones?

5:19

why is the sound so low

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

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

shame ya cant hear the video

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

Are you Tom Lipton's kid?

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

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