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apaulsen-21-Visitor
1-Visitor
November 1, 2016
Question

Why is Creo so rigid?

  • November 1, 2016
  • 1 reply
  • 969 views

It seems like any larger mechanized assembly in Creo just locks up. What is the trick? I came from using Solidworks the past couple years and everything seems twice as hard to confirm or manipulate with no real diagnostics to tell you why the d*@n thing won't move. I understand why we had so much rework for interference on assemblies for a company we were contracting for.


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1 reply

T
TomD.inPDX17-Peridot
17-Peridot
November 1, 2016

The issue is likely in the coarseness that Creo allows parts to move.

This would be a nice improvement.

You can help by putting locks at endpoints (motion limits) to avoid flipping onto itself, for instance.

That is just good engineering.

Selecting drag handles too is a big part of dragging smoothness.

If you pick near an axis, it will rotate wildly; if more than one item is free to move around, it gives them equal weight.

If there are too many undefined degrees of freedom, it just ties itself into knots.

There is actually some data in the message windows that becomes relevant.

You have to learn how to find system level names to zero in on offending features.

Things to learn: snapshots... that is how you restore an assembly quickly.

...gear connections: removes errand degrees of freedom

...servo motors: use as analysis tool rather than the dragger.

I've been able to manage serious motion profiles within Creo and easily drag subsystems on the screen.

They were constrained in a robust manner with hundreds of mechanical mates.

Creo demands discipline... and a bit of archaic diagnostics.  The thing is, once you learn, it's easy.

You'll miss a few things from SW but you will enjoy a lot of other things much more!

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