I want to create 3 metallic rods (solid pipes) which start from the solid block on left, pass through the holes on the other two stands and a few more off-camera, and end in a similar solid block. The blocks will have a transparent acrylic/plastic material. Two rods will be towards bottom of holes, and one on top. They have to be in that arrangement because some balls have to pass through them.
I can't figure out how to create such 3 curves that always stay equal distance from each other, which touching the boundaries of those circles at the same time. My best guess is a single bezier curve, which is then converted to a single object/circle, and then it is modified to have 3 pipes on its edge, but have no idea how to go about it.
Please mention steps instead of only techniques and workflow names if possible, as I am a complete beginner in modeling.