CGPersia Forums
Release Blog CGPeers IRC Chat FAQ
Go Back   CGPersia Forums > CGPersia Home > General CG Help & Support
Reload this Page Does a car disc brake rotate with the wheeL?
General CG Help & Support Baffled by something? Ask for support here! NOT FOR SITE ISSUES OR REQUESTS

Reply
 
Thread Tools Search this Thread
Old 10-13-2017, 05:41:27 AM   #1
primitivx's Avatar
Original Poster
Join Date: Sep 2010
Posts: 584
Thanks (Given): 225
Thanks (Received): 1082
Default Does a car disc brake rotate with the wheeL?

I am working on animating a car using Drive in C4D. The way the set-up is done, the disc bake turns and rotate with the front wheel. I think it is not exact. It should somehow stay in place and only turn left right with the wheel. How would you manage that? With an expression or a constraint tag? Everything else works great. Any help?
__________________
-prim-
is Offline  
Reply With Quote
Old 10-13-2017, 05:49:30 AM   #2
lightformone
Join Date: Feb 2011
Posts: 14
Thanks (Given): 92
Thanks (Received): 17
The brake disc (also called the rotor) rotates with the wheel and the caliper is static (doesn't spin). Both parts are located between the wheel and the hub.

The caliper is the bit attached to the car, so when it pinches the rotating disc, it resists the wheel's rotating motion.

Link(s):
 
Link(s):
 
I hope this help ...
is Offline  
Reply With Quote
1 Thanks, 0 Dislike - shinobi1 thanked for this post
Old 10-13-2017, 04:30:39 PM   #3
primitivx
primitivx's Avatar
Original Poster
Join Date: Sep 2010
Posts: 584
Thanks (Given): 225
Thanks (Received): 1082
I fixed my problem. Drive parented the brake piece (not the disc) to the wheel, I changed it to parent to the body.... Which was wrong. NO parenting, just a double set of rrotating nulls, much the same as using nulls to drive a camera.
__________________
-prim-

Last edited by primitivx; 10-14-2017 at 01:36:34 AM.
is Offline  
Reply With Quote
Old 10-13-2017, 08:22:32 PM   #4
tehri
tehri's Avatar
Join Date: Nov 2011
Posts: 862
Thanks (Given): 1118
Thanks (Received): 655
Always better when Drive to the body

Link(s):
 
is Offline  
Reply With Quote
5 Thanks, 0 Dislike - radoman, zov, fragsauce, Sproxar, dreatica thanked for this post
Old 10-13-2017, 10:28:54 PM   #5
Sproxar
Sproxar's Avatar
Join Date: Sep 2013
Posts: 3,103
Thanks (Given): 2440
Thanks (Received): 2264
Link(s):
 
Damn! It cut out just when it got interesting - I wanted to see how the truck freed itself after high-centering on those large boulders...
__________________

doing my part to make the world a better place... one post at a time.
is Offline  
Reply With Quote
1 Thanks, 0 Dislike - tehri thanked for this post
Old 10-14-2017, 08:18:44 PM   #6
radoman
radoman's Avatar
Join Date: Sep 2009
Posts: 7,350
Thanks (Given): 5657
Thanks (Received): 6353
heh, heh... he stuck, can not pass this mountains
mmmmmmmmm........
is Offline  
Reply With Quote
1 Thanks, 0 Dislike - tehri thanked for this post