what materials di you use when you built the movement foot machine?

Question: what materials di you use when you built the movement foot machine?
- Keywords:
  material
Asked by im an engineer to Edgars on 10 Jun 2019.
- Edgars Kelmers answered on 10 Jun 2019:
  
  My machine needed to allow X-rays to go trough the walls, to take a video of bone movement inside the foot. Therefore the machine walls were made out of plastic, for example, acrylic glass, because it is transparent on the X-ray image.
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  The machine was also attached to 3 motors, which allowed to twist and flex the foot. The motors were controlled by a computer.

Question: what materials di you use when you built the movement foot machine?