How do i make a bobby pin type spring open and close as it rotates inside of a cylinder. Expand to lock into place and contract to allow continuous motion in cw direction. Picture attached.
I don't understand exactly the mechanism or what you want to show. Anyway, in Basic Motion, you could rotate the shaft and use the springs to open the antirotation system.
Pay attention to the solid body contact or mates.
With SBC should be easier to define but I don't thin that SW Motion is very reliable, at less in 2013 version.
If you go to Motion analysis and try to analyse forces, then you will have the problems.
I have done something similar in Motion analysis to simulate a sprag clutch. First, I focus on one part. Then, I would apply a torque to the 'bobby pin' that tends to force the pin against the outer race. The remaining elements are a rotational pattern of the original. You must also have 'contact' between the bobby pin and the outer race geometry. The trick part is getting a good balance of forces, adding enough damping that the parts don't bounce back out of engagement, etc.
SpragClutch 2015 03 10f - YouTube
I can't say it's simple. I have used Motion a fair amount and I still find it to be buggy and mysterious. But it's still the best deal going.
Best of luck
this seems like an interesting workaround, i think you also have to model the parts so that they don't interfere
fundamentally this is a workaround to the fact that motion is a rigid body kinematics program. so you could apply contact between the 2 components (Groove and the pin) and when it reverses, the system would stop. but when you go the other direction, since the part can't deform, it can't retract and keep pushing outwards, this is where the torque is a good workaround.
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