Digital humans the art of the digital double
Ever wanted to know how digital doubles are created in the movie industry? This course will give you an insight into how it's done.
# 1 27-02-2003 , 04:58 AM
Subscriber
Join Date: Jan 2003
Posts: 6

constraints ?

I have been playing with constraints for the animation of a rotating crankshaft,rod and piston. I figured out how to constrain the rod to follow the crank but I can't figure out how to make the piston follow the rod only up and down. Any help would be much appreciated. Here is a copy of the file.

# 2 28-02-2003 , 11:53 AM
Jozvex's Avatar
Registered User
Join Date: Nov 2002
Location: Australia
Posts: 28
Hi Charlie, it took me a while to figure it out, but all you needed to do was:

1. point constrain the piston to the rod

2. then use the point constraint offset in the Y axis to move the piston back up where it should be (because it jumped to the pivot of the rod)

3. then if you break the pistons X and Z connections to the point constraint, it only moves up and down!

Unfortunately I can't attach the file because I use Maya 4.5, but did you get what I mean?

# 3 01-03-2003 , 07:13 AM
Subscriber
Join Date: Jan 2003
Posts: 6

works great!

Thanks for the help JOZVEX that is exactly what I was trying to do.Thanks agian.user added image

Posting Rules Forum Rules
You may not post new threads | You may not post replies | You may not post attachments | You may not edit your posts | BB code is On | Smilies are On | [IMG] code is On | HTML code is Off

Similar Threads