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  1. Timetraveller83

    Exercise pulley machine for MRI

    I will have to check about the aluminum. I have not personally used it but have seen it published in medical literature. I test everything before it goes into the magnet and I have tested brass and it is safe. I also think lead is safe. The metals will not be going into the magnet but used at...
  2. Timetraveller83

    Exercise pulley machine for MRI

    Thank you that is a huge help, I didn't know how to explain what was happening before and what to aim for. I am trying out configurations according to your explanation and they are looking good, I'm going to move into manufacturing the machine now. Thanks again
  3. Timetraveller83

    Exercise pulley machine for MRI

    I apologize for the misleading picture. The carriage/cart to the right is not moving, I only moved it so you could have a full view of the wheel. I want the force from the foot transferred to through the rod to the disc/wheel to the right to then pickup the weight stack directly underneath it...
  4. Timetraveller83

    Exercise pulley machine for MRI

    You are correct, I am not using any ferromagnetic materials in the design. I will be using plastics mostly like PVC or ABS. However, metals such as brass and aluminum are not magnetized in the field so those are possibilities too, although then I begin to worry about what in MRI is called...
  5. Timetraveller83

    Exercise pulley machine for MRI

    Hi everyone, I am building a calf exercise machine for MRI. I have attached a sequence of 3 pictures showing what I have so far with the foot plate (where the patient will rest their foot) in 3 different position. As it is shown, the patient will be lying with the head to the left and their foot...

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