Rigging a sector gear...

[Jens_3deutig]

hey guys,

we had a little rigging problem and found no solution for it.

we have to animate a part of a really complex clock mechanism, and there are all kinds of gears inside the mechanism.we got all working beside this one.we really need thats all is working like in reality and we have alot of such sector gears thats only covering some degree with teeths.

please have a look at theese pic...



so if the big one rotates 360 degree the little runs 360 also but only when the big ones hits the little one of course, if not it is still and wainting for the new round...

have anybody a idea or did a similar rig in past projects?

many thanks

cu
jens

[stevesideas]

I would suggest using reaction. You can set objects to turn to particular degree with a control object. Not sure how much control you have but it might be worth a try. I guess a potential script would be to include a 360 degree movement of the small gear when the large gear is moving between degree A and degree B..all other degrees of the large gear would be ignored. Im not sure how you would script that...maybe someone here knows

[Jens_3deutig]

thanks for the tip, we used paul neale´s setup and formula for the normal gears and all is working really good, we also used for that sector gear a exposetransform that give us values thats we could used in a reaction float controler, this works also great, but like paul said, the little gear is jumping from eg. 360 to zero and for theese little setup of 2 gears all would be fine, but in our case we have a huge amount of gear and controlled object after that 2 gears so all is flipping after one round...any idea to get rid of it?

thanks!