FreeZ Endstop for Elegoo Neptune 4 and 4 Pro
Printables
16 model
Free
FreeBed Level Test Print - Quick First Layer Calibration for FDM 3D Printers
Printables
FreeJ3D TECH'S BUILD PLATE CALIBRATION
Sketchfab
FreeBTT Eddy NG Macro + my print start on my SV08
Printables
FreeDelta First Layer Calibration (FLSUN V400)
Printables
FreeZ Calibration Gauge 80×100×100 (EF-Safe) freeSTL
Sketchfab
FreeZ Offset Test
Thingiverse
FreeZ offset test 2mm
Thingiverse
FreeZ Offset Test
Thingiverse
FreeZ-offset Bed switch V1.0 for Ender 5 with 3mm build plate
Printables
FreeTevo Tornado Z Offset Clip
Thingiverse
FreeHow to set Z probe offset in Marlin!
Thingiverse
FreeKossel magnetic z-probe mount with zero X-Y offset to avoid effector tilt problems/errors. Tested 100%.
Thingiverse
FreeEnder 3 Z motor mount shim & offset
Thingiverse
FreeEnder 3 Pro - PSU Offset Mount (dual z-axis)
Thingiverse
FreeFLsun i3 2017 non-flexing offset Z motor mount
Thingiverse