High precision air bearing CNC lathe and grinder

1. Good day I presented his air pillow lathe on our forum and various observations were unleashed.
   
   a) of what the mand however to the X and Z moves under the push of the tool.
   
   b) At what pressure the cushions work.
   
   How much air consumes the spindle and all the complete lathe
   
   Thanks for a welcome answer
   
   Sincerely
   
   Giuseppe Crimi

2. Thanks again Dr Gelbart – for this and all your vids. Awe inspiring and full of knowledge, so refreshing! Thank you!

3. that air bearing is very interesting. ? there is nothing like watching the air bearing in action compared to someone explaining the concept. ? thanks smart Dan.

4. Salutations from the degenerates over at AvE’s channel.

5. i think i figured out something interesting about building structures by watching your videos, can u please tell me if i'm correct, and if there are any exceptions to this thinking :-
   1. if the only purpose of a structure is to be stiff ( i.e., to have a low deflection per unit load), then, i can join the building blocks of the structure, using just hardware shop epoxy. (ex – machine frames like this).
   2. if a structure is meant to bear load to its max capability without breaking then i have to use welding. (ex – bridges and buildings). stiffness and deflection become unimportant.
   3. since most machine structures are meant to be stiff , but not strong. an epoxied structure would make more sense as welded structures would cause more problems (warping, internal stresses, etc) than an epoxy glued structure.
   4. its better to make a machine structure by gluing with epoxy than by welding.
   5. people who are building machine frames/structures by welding steel are wrong.
   6. another method : using only screws and nuts ( threaded mating parts) to build the structure. i'm wondering if this method has the advantages of both epoxy structures and welded structures. is it better than both, or comes second to epoxy.
   7. how about using both epoxy and screw , will it give both stiffness and strength?

   Thanks in advance. i've learnt so much from you.

6. I appreciate the precision.

7. Good god what does this man do? That's amazing.

8. What is the difference between semiconductor air bearings and regular air bearings?

9. holy shit

10. I wanna see Dan hang a picture. I bet he put air bearings on his Bosch 5 Axis Laser, just so his pictures tolerances are l lower than mine.

11. When making the bed section, you mention the bolts will hold the sections with compression. Doesn't the bolt relax and compromise the accurate measurements?

12. 你好 丹，您所有的回复我全部看完了。其中有一条是关于中国产大理石构件的信息，如果您需要从中国采购此类物资。我很乐意帮忙。

13. God of machinery !!!

14. Doesn't the air friction lead to the metal heating and expanding leading to the bearing seizing?

15. If I ever need a heart transplant I want this guy right next to the surgeon telling him what to do.

16. Great stuff! I am currently interested in aerostatic vs hydrostatic spindle bearings for precision machining. If anyone wants to unload their thoughts on that, feel free 😉

17. Do you have this as a product in market ? If not, you can consider selling them.

18. May I visit your shop?

19. Good ?

20. Thanks for sharing Fantastic

21. Just a question, what actually drives the axes? I presume it uses linear motors?

22. You Mr.Gelbart , are one amazing man. Thank You for sharing some of your knowledge and expertise.

23. amazing built! great machine! I like to have this in my workshop!

24. Joli

25. 'you can verify that with an ohm meter while it turns' wow.

26. Wow

27. Wow, I didn't even know grinding wheels on a lathe where a thing. IT makes so much sense!

28. I am dazzled by this mans brilliance. What an amazing machine!

29. "Bearings, very cheap from eBay, only couple of hundred bucks each" > for average reader, very cheap is two orders of magnitude off that and many have lathes that cost as much as only those bearings. 😀

30. dan , u are a precision GOD

31. Absolutely beautiful, sir. This is machining at its finest!

32. How do you dress the grinding wheel?

33. An amazing Engineer

34. did you purposely grind or machine the practice piece off center???

35. by genius Dan Gelbart all things are simple ……………

36. Wow this is awesome accuracy!

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