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Multiple Animations
larry_reader
Member Posts: 3 ✭
Hello,
Can't find the trick.
I have 2 animations a Revolute and a Slider working properly in an assembly. I just want them both to animate at the same time.
How do I do that?
Thanks
Can't find the trick.
I have 2 animations a Revolute and a Slider working properly in an assembly. I just want them both to animate at the same time.
How do I do that?
Thanks
0
Best Answer
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john_mcclary
Member, Developers Posts: 3,897 PRO
Rack and pinion relation is the relative motion between a linear motion and a rotation.
All relations only affect existing mates.
You will need to set up a part on a slider (or cylindrical) mate.
The other part will need a revolute (or cylindrical) mate.
then you select the two mates in the rack in pinion relation dialogue, then set the relationship. "For every (1) rotation, I will move (200mm)"2
Answers
What I do is create a separate slider to animate, then have that slider push some pieces along a curvy path. When the piece follows the curve up, use a slider mate with a relation to drive your actual part...
Each curve will drive the position of each mate.
In the ref image below, there are three mates being animated, 2 are stationary for this moment in time. while the 3rd is moving in a positive direction, in this case, a clockwise rotation somewhere in the assembly.
Hard to explain in short hand.
Look at the videos towards the end of this forum post, and I give deeper explanations.
There was a webinar about this somewhere too, but I don't remember the title off hand.
https://forum.onshape.com/discussion/10484/rubiks-cube-mate-animation
https://cad.onshape.com/help/Content/materelation-rackandpinion.htm?cshid=materelation_rack_and_pinion
Still missing some key bits. When I set up a Rack and Pinion Relation I get a constraints error. When I drag something the parts move instead of the animation occurring. In the video's there is this drag to animate thing going on.
All relations only affect existing mates.
You will need to set up a part on a slider (or cylindrical) mate.
The other part will need a revolute (or cylindrical) mate.
then you select the two mates in the rack in pinion relation dialogue, then set the relationship. "For every (1) rotation, I will move (200mm)"
in the animation dialogue you will need to set the distance to be lessthan or equal to the slider's limit.
(HINT: sometimes you need to give a negative value )