Character Picking Stick?

[rotamina]

hello everyone out there. here i got a problem in animating my character picking up someting and vice versa.
first i constrained my character's wrist with a stick and it does fine while i animate that. but if i try to make my character that stick later i end up with a mess. how could i do that ?

how do i break my constrain after certain frame so that the previous animation doesn't mess up??
help me if anyone of u have a sloution to this. could be a character throwing ball or someting.
thanks.

[cgsurf]

assuming that u use locators for constraining..

if a character simply picks the ball and puts some where else............

in this case u have to use three locators.

locator_1 at the place from where u pick the ball , locator_2 one which assist u to lift the ball with hand and the locator_3 where u puts the ball...

in short :
point constrain the ball to locator_1, locator_2 and locator_3
point constrain the hand to locator_2

value should be like this :
in beginning:
hand constrain to locator_2=0, ball constrain to locator_1=1, constrain to locator_2=0, ball constrain to locator_3=0

as character picks the ball up, :
hand constrain to locator_2=1, ball constrain to locator_1=0, ball constrain to locator_2=1, ball constrain to locator_3=0

as character puts the ball down :
hand constrain to locator_2=0, ball constrain to locator_1=0, ball constrain to locator_2=0, ball constrain to locator_3=1,

hope this might help.....!!!

thanks.,