This is a really amazing design, looking forward to seeing what you make of it. I've been looking at dental air turbines, seems like this could have benefits there. Eg, I wonder if they would dampen the noise of those drills. Great research!
i want to make an air powered spindle and i suppose this bearing system can be used, coupling the bearing system and the air motor in two parts with different pressures or both systems together, i wonder if the whole setup can be made with cnc machined fiber reinforced annelated recycled plastic. i will try to make one
Not a whole lot of side load because the shaft is only a half inch. It grounds at only a few pounds, that's why I proposed micromachining with it. Air bearings don't scale down very well at all, this i learned. Uses
@@cylosgarage thanks very much, is there any kind of graphite rod in particular I'm interested in playing with the concept myself. Please keep up the videos.
@@cylosgarage thanks for the info, what sort of clearance are you allowing between the graphite and the rotor? I'm designing and machining my own. How did you decide the clearance?
@@davers1610 it depends on how much stiffness you want. The smaller the clearance the stiffer it is but the lower the load it can take before binding. Typically you see air bearings in industry operating at a fly flight of anywhere from .00005" to .0002", again greatly varying depending on the application. This spindle had about .0004" diametrical clearance and about .0002 axial clearance. Not super ideal but I was learning.
Interesting to see how the spindle will work in the future. Do you plan on making it spin over 100k rpm for the 5 thou endmill? The balancing and endmill runout are very critical I think. Requires shrink fit bored on the spindle itself probably to get it acceptable for the endmill
They can achieve very high accuracy and a good surface finish with spark erosion better than grinding or lapping. Some of the bearing used in silicon processing have a radial clearence of less that 8um
![A build guide for DIY Air-Bearing Pads [4K]](/img/n.gif)
this will be added to our perfection
Very nice. Can’t wait to see the next installment
Outstanding work sir. I was saddened to hear the 30lbs dynamic load limit.
Yea, air bearings don’t scale down well at all. Thank you though
This is a really amazing design, looking forward to seeing what you make of it. I've been looking at dental air turbines, seems like this could have benefits there. Eg, I wonder if they would dampen the noise of those drills. Great research!
I would be glad to have that
Very impressive!
Curious to know the run-out you measure on the end-mill shank.
i want to make an air powered spindle and i suppose this bearing system can be used, coupling the bearing system and the air motor in two parts with different pressures or both systems together, i wonder if the whole setup can be made with cnc machined fiber reinforced annelated recycled plastic. i will try to make one
Awesome. Thanks for sharing
Cool, thanks for sharing!
Awesome. Well done
There's a market for this, there are companies that make air bearing spindles that attach to normal spindles.
Really interesting video thanks. What sort of side loads can this take before binding? Also how much air does it use?
Not a whole lot of side load because the shaft is only a half inch. It grounds at only a few pounds, that's why I proposed micromachining with it. Air bearings don't scale down very well at all, this i learned. Uses
@@cylosgarage thanks very much, is there any kind of graphite rod in particular I'm interested in playing with the concept myself. Please keep up the videos.
Nope, just any old graphite from Amazon works
@@cylosgarage thanks for the info, what sort of clearance are you allowing between the graphite and the rotor? I'm designing and machining my own. How did you decide the clearance?
@@davers1610 it depends on how much stiffness you want. The smaller the clearance the stiffer it is but the lower the load it can take before binding. Typically you see air bearings in industry operating at a fly flight of anywhere from .00005" to .0002", again greatly varying depending on the application. This spindle had about .0004" diametrical clearance and about .0002 axial clearance. Not super ideal but I was learning.
Interesting to see how the spindle will work in the future. Do you plan on making it spin over 100k rpm for the 5 thou endmill? The balancing and endmill runout are very critical I think. Requires shrink fit bored on the spindle itself probably to get it acceptable for the endmill
Can you help me design an air bearing Spindle which will be used for 1 micron precision laser scanning?
Sure, send me an email cyruslloyd4@gmail.com
Is it possible you share where you procured the graphite raw material please?
Yay
Great job.. 👍
Really cool 😃
How much it can hold a load?
Build your self a spark erosion set up too
Do you mean edm? Why?
They can achieve very high accuracy and a good surface finish with spark erosion better than grinding or lapping. Some of the bearing used in silicon processing have a radial clearence of less that 8um
@@glassjb
Maybe better than grinding, but not lapping. watch robrenz's video on precision gauge balls...
Здравствуйте поставьте пожалуйста геолокацыю спасибо большое всем здоровья и удачи??????
Isn't this like a Tesla turbine?
No
@@cylosgarage I see, it's going to be useful for a Tesla turbine ;)
Use "W Brian Rowe hydrostatic, aerostatic and hybrid bearing design" otherwise you are gonna waste
Lots of time
Hi Good morning
what
When u don't have a basic understanding of how porous media air bearings work 😣😣😣
Can you please elaborate more?
@@holypizza1 1:10