They don't move. I just want them to have enough tension to not flap around as they "float" above the tube, in the same location in space that a mechanical cable would be.
In thats case i wouldnt worry about tension, most rubberised electric cables will hold there tension if you pull them tight
@ArthurDent started
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They don't move. I just want them to have enough tension to not flap around as they "float" above the tube, in the same location in space that a mechanical cable would be.