Creo Mechanism Dynamics Tips & Techniques Session Recording (East Coast)

Webcast Q&A

Question from Ryan:  Is the truck box simulation taking the shock/spring weight into account?

Answer:  All applicable weights are taken into consideration.

Webcast Q&A

Question from James:  Can constraint sets of both types, normal assembly constraints vs mechanisms constraints, be activated/deactivated such that a single assembly can be used as both a normally constrained assembly or a mechanism assembly?  Or, is it either or...thus two assemblies are required if both a mechanism assembly is needed as well as a regularly constrained assembly?

Answer:  You can have multiple constraints sets to pick and choose different combinations within the same assembly.

Question from James:  So, a single assembly can be used for both mechanism and conventional assembly by simply toggling constraint sets?  If this will not be demonstrated normally in this presentation, could Lino perform a quick demo of it (i.e. fully constrained assembly to mech assembly and vice versa)?

Answer:  Within the same component, all constraint sets need to be of the same type.  You could toggle between constraint types though.

Question from James:  Is there a downside to assembling Mechanism Assemblies into "normally" constrained assemblies as sub-assemblies?  Also, conversely, is there a downside to making normally constrained assemblies sub-assemblies to a mechanism assembly?

Answer:  No downside.

Question from James:  I understand that some forethought will be required, but does PTC have any rules or caveats to these scenarios?

Answer:  Not that we can think of.

Webcast Q&A

Question from Paul:  These examples appear to be bottom-up engineering.  Parts already exist.  How would you develop the parts from top down?

Answer:  We do have the ability to create motion skeletons with very little geometry and then add parts to that.

Webcast Q&A

Question from Rafal:  Is it possible to save a mechanism's motion as a surface or solid envelope and use it in the assembly as a reference?

Answer:  You can create a motion envelope which will be a tesselation.