The Z-SupportBracketR and Z-SupportBracketL support the gantry weight and eliminate the axial force on the Z-Motor.
Update
The Z-Support Bracket can be also used as a Radial Guide (x and y). I uploaded a ring for this purpose.
BearingRingIn.stl | 42.3KB | |
BearingRingOut.stl | 42.3KB | |
Z-SupportBracketL.stl | 20.4KB | |
Z-SupportBracketR.stl | 20.4KB |