1) Does elastic rod should be twistable and bendable?
2) Is that required to be controlled/adjusted bending moment, extension force and twisting torque (all that characteristics simultaneously)?
3) Are ball-grip ends should be hard or soft (I mean you can crush/knead them in your hands)?
4) If ball-grip ends should be free to rotate, how they can transfer torque from hands to resistance rod?
Please provide us with any sample pictures of this product, if you already have one, just for our understanding.
Shall we use any other CAD Software and upload the CAD file in STEP Format, which is a universal CAD Design Format.
pawec1
Designer