Optimal Z height

[gastonfama]

Hello everybody.
Does anyone ever thought about the optimal Z height, product of the multiplicity of the steps of the z motor?
To be more specific, the height (0.2mm for example) should be a multiplicity between the amount of steps of the z motor and the height of each turn of the threaded bar that moves the plate. If the height is not exact multiplier, I do not know what would happend, perhaps some software compensation, perhaps some good layers, some bad layers...
I found this usefull calculator http://prusaprinters.org/calculator/#optimallayer
But I can not find the pitch for the cubex. The steping motor seems to be a nema 23 with 200 steps.

Does anyone knows the pitch of the threaded bar?

Regards.

[rantzaus]

I had a discussion with Giovanni, earlier this year.
He mentioned that the stepper would prefer a height of 0.18 or 0.21 instead of 0.2...

Giovanni wrote:
With the Cubex you also better use 0.09 or 0.12 layer thickness because they are multiple of 0.03mm and one step of the z-axis motor makes 0.015mm.

[gastonfama]

Ok, then if one step of the z-axis motor makes 0.015mm, the optimal height near 0.2 would be 0.195 or 0.21...
That was exacltly the info I was needing.
Thank you.
Regards.