Hello Dr Sassi,

You did it !
It's great that you've managed to solve this big problem that's been blocking me for several days!

Thanks again so much !

Vincent

Hi Dr Sassi,

I am currently working on a watch with a "flyback" chronograph. This means that depending on the angle of the wheel, when you reset to zero, the wheel will either return to zero from the right or from the left. This is to avoid applying too much force on the wheel by making it travel too far during the reset.

An additional challenge is that it is possible to reset without stopping the chronograph. When you press the button, the wheel resets to zero, but if you release the button, it starts again.

The issue with the formula in this case is that I cannot instruct it to move one way or the other without telling it to position at 1254 or 2, but it cannot return completely to zero.

I hope my explanations are clear.

Thank you very much for your help, it is incredibly helpful for my progress!

Best !

Hello Sassi,

Thanks, it works perfectly!

Do you think it's possible to set a reset condition such as: if the wheel is at less than 180°, it resets via the right, and if it's at more than 180°, it resets via the left?

In any case it's really great, you've solved a big problem!

Thanks a million!

Hello everyone,

I've been tearing my hair out for days/weeks with this problem...
I'm trying to animate a chronograph wheel in xpresso.Chronowheel.c4d

Everything works fine on its 4hz rotation ( time/frame->math-divide:3.125/integer/math-multiply:0.75/degree:degreetoradians)
My big problem is with the start and stop function and the reset to 0...

I've tried many different ways of doing it, in Xpresso, with keys in a motion clip and MoGraph, but each time I get the same problem -> I start the timer in frame 100 and stop it in frame 500, and if I reactivate the timer in frame 1000 to continue, the wheel will jump to catch up with the rotation of the 500 frames that have elapsed.
I've read a few times that a memory node might help, but I've no idea how.

Would you have an idea of how to solve this problem please?

Thanks in advance for your help

Vincent