Torsion Spring (Animation)

grabcad

An animation of a TORSION SPRING from my last project, using the application »KeyShot 4«.A little trick helped me to come to a relative good result.If any member can show me a better, more realistic animation, I would be very pleased.Following the details:The animated torsion spring consist of two parts in an assembly.This assembly is used for the animation.A (.bip) file is uploaded for understanding the procedure.I think, it's self-explanatory, if you download the file and open it in your 'KeyShot' application.The most important value is the movement in axial direction of the two spring halves.This value is calculated: (wire diameter of the spring) * (complete moving angle / 360).For the first animation the value is: 0.7 * 90/360 = 0.175 (Both torsion spring legs are moving).For the second animation the value is: 0.8 * 152/360 = 0.3378 (One torsion spring leg is moving).The models are available as:STEP files (.stp)Native files (.prt) and (.asm), in a folder for users of »PTC Creo Parametric 2.0«Two animations are uploaded in the (.gif) format.Two screen shots for creating a helix by formula are added additional.