small calibration object —
Founded small calibration object models & stl files for printing
zumili
De3DPrintman
rebeltaz
MatterHackers
Jon
Jon
DavidB
Biseyleryapalim
Nebulus
Loubie3D
loubie
E3D+VET
brockhold
Dezign
rwmech
edditive
0scar
3D-ME
FiveNights
Elproducts