Air bearings for z-axis

[RobertKuhlmann]

I’ve posted a blueprint for air bearings for Morgan’s z-axis in my personal Morgan project: http://reprap.org/wiki/User:RobertKuhlmann/RepRap_Morgan#Air_bearings

I have not tested this concept but it looks promising. Ideas and comments are welcome.

[Quentin Harley]

Looks interesting.

Regardless if the air bearings work or not, you may have stumbled on something that I considered some time ago, but forgot about again.

Thanks for reminding me!

[RobertKuhlmann]

Today is a good day to work on my real Morgan. So I’ll leave the concept at that state and test it with my own printed parts.

But the aluminum-rails are here already and their were very cheap (1,45€/m).

Will you tell me, what my concept reminded you of?

[Quentin Harley]

I experimented with using angle bar and teflon sliders – wasn’t very effective, but it could work with bearing wheels.

Since all of the weight of the bed is to the one side, you only need weight carrying bearings on one side, and flexible ones on the other side

[RobertKuhlmann]

Since all of the weight of the bed is to the one side, you only need weight carrying bearings on one side, and flexible ones on the other side

Sorry, it’s late. I didn’t get that. What “sides” are you talking about exactly?

[Quentin Harley]

This…

http://wp.me/a35AQ2-ij

[RobertKuhlmann]

Ah. Okay. I didn’t get it first, because that wouldn’t (shouldn’t) matter with my air-bearings. I’d like to avoid direct contact to the axis at all. 😉

[RobertKuhlmann]

This is the heart of the compressor for the air-bearings:

The z-axis air-bearings will use two aluminum-profiles per side:

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