Kinematic Analysis

JR Booth

 Hi somebody using the 3D Constraints in Platinum? Is there any stretch constraints that i could use. im tryin to move one Entities and stretch the other entities dynamically which are connected with "Concentric & Coincident" Constraints 

To Simplify, the cylinders on the attached dwg should be stretched as the Excavator boom and arms are changing its angle.

Concentric & Coincident Constraints are working fine but if I convert the entities into a component where i can be able to move the whole dwg dynamically, the 2 cylinder entities become fixed and not stretching

Damian Harkin

The drawing has 17 missing external reference files.  You need to zip up all the component drawings used in this model and upload the zip file.

Louis_Verdonck

 I think in real world it is also rather difficult to stretch cylinders ..., In a 3D model you could fake this by using two overlapping solids: one stays at the start position and the other moves along with the boom and arms.

JR Booth

 Thanks for your help Gents.
I agree with you Louis. it's like the real one that the piston goes through the Cylinder

Cheers