calibration sphere —

Founded calibration sphere models & stl files for printing
ProtoCity Hubs
PrototypeHubs
Design Decision Cube
creativeprocesslab
A simple caliper
claudiogirolami
Bat Cali Cat Man
Alex Ronda
Benchmark Bot
Kazi Toad
MultiNozzle Calibration Cube
Beb's Repair Bench
Calidog
tmatosc
Tolerance
jefbed