moineau: extract SPACER_R and SPACER_H; merge _rotor and rotor, since _rotor does not have any parameters anymore.
moineau: extract SPACER_R and SPACER_H; merge _rotor and rotor, since _rotor does not have any parameters anymore.

krasin/abc-cube,krasin/abc-cube,krasin/abc-cube,krasin/abc-cube,krasin/abc-cube