first layer test 60x60 mm square z calibration —

Founded first layer test 60x60 mm square z calibration models & stl files for printing
Calibration snowflake
CODEMONKEYZERO
PRUSAcube
V.S.
Oak Island TSquare
cncMaker1976
Z Axis holder
erikkallen
Square Tool
VG_ST_D
Square key
iz2rpn
Z move indicator
tomas karlsson