XRay Calibration Marker

Design of an X-Ray Calibration Marker. I used the previous design of ball-joint to make an articulated arm, with a square base and a metal sphere of 20mm diameter on top so it can be used to scale medical images.

In the zip file you can find the ball-joint segment used, as well as the square base and the final joint for the metal sphere.

The metal sphere can be found at: https://www.amazon.es/Sourcingmap-G25-rodamiento-cromado-precisi%C3%B3n/dp/B07Q81TCQ2/