Unfortunatly those things doesn't work with my hesphestos...
They printed well but it seems that holes for screws aren't aligned correctly with motor axes.
When I put right and left blocs without x axes mounted they're not facing each other, and when I mount the x axes there is to much tension on the screws and motors aren't able to move =(
There is something I have missed ?
I also noticed a difference in the hephestos_x_axis_lead_screw_motor-end,
on my "factory" one I can push the x bars until the end of the bloc but not on yours.
I have checked this piece on hephestos github and it was like mine, perhaps this piece has been modified since you redesign it ?
(not sure if I'm fully understandable ^^)