Possible to Reorientate rotation of SpinCentre of an existing assembly?

Question

Possible to Reorientate rotation of SpinCentre of an existing assembly?

Gazjam (Automotive)

(OP)

8 Aug 17 06:51

Hi all, first post. :)

In my role, I create Technical illustrations based on exploded Creo assemblies.
Workflow is:
> Take Creo assembly and create an explode state the way I need it for the tech. Illustration.
> Export as STEP file
>Take into PCT Isodraw to convert to EPS vector file.
> EPS into Adobe Illustrator for annotation and tweaking.

The other day had an assembly which becasue of the way it was modelled, the Y-Axis was pointing down the length of the model rather than straight up?
This meant when I imported STEP file into Isodraw the model was exploded UP rather than OUT (in what should have been the Z-Axis).

In other software you can create a new 3 point co-ordinate system on the fly by clicking 3 points on the model, is there an equivalent way to do this in Creo?

Can I change rotation references of the Spincentre so that I can have Y-Axis pointing UP rather than along the Z?

Hope this makes sense, I've attached a screenshot of what I'm asking about.

Thanks. :)

http://files.engineering.com/getfile.aspx?folder=18fa70bc-de9b-4031-be0f-29

3DDave (Aerospace) · Answer 1 · 2017-08-08 07:25:54

You can create a new CSYS from an existing one and apply rotations and translations as required. The is preferable because it won't be affected if parts change.

I don't recall a 3-point method, but you can also reference two axes/edges to create one from scratch. Creo will put up a dialog box that allows changing which direction corresponds with an axis and allow flipping the positive direction. If the edges/axes are changed the CSYS construction might fail, but that might not matter for your purposes.

Gazjam (Automotive) · Answer 2 · 2017-08-08 08:08:59

that's great, thanks.

You said: "Creo will put up a dialog box that allows changing which direction corresponds with an axis and allow flipping the positive direction."?

How do I acces this dialogue box please?
(I'm an Inventor guy by trade, so still picking Creo up as I'm going along. :))

Thanks.

3DDave (Aerospace) · Answer 3 · 2017-08-08 12:55:55

It's part of the CSYS dialog where you pick the references.

Gazjam (Automotive) · Answer 4 · 2017-08-08 13:51:58

Thanks very much.

Have worked out the dialogue box and made the references (this surface references Y etc...) but having an issue whereby the "OK" box is greyed out, so I cant finalise the new Co-ord system?

Almost there. :)

3DDave (Aerospace) · Answer 5 · 2017-08-08 22:21:57

That's why I first recommended creating a new one from an existing one. Since the only reference is a CSYS there aren't any choices that won't work.

Gazjam (Automotive) · Answer 6 · 2017-08-10 08:34:43

Thanks again 3DDave.

I have tried that and cant get the new co-ordinate system to save...the "OK"buton to confirm it is greyed out.
New to Creo and finding this fundamental thing frustrating!

Is there a "create new co-ordinate system" tutorial anywhere...almost there but its still eluding me. :)

Thanks.

3DDave (Aerospace) · Answer 7 · 2017-08-10 13:37:28

Have you tried creating any new feature?
Have you tried creating a new CSYS in a new part?

I really can't guess why it's not available unless you don't have permission to make changes to the assembly. In that case, create a new assembly and place the current assembly as a component in the orientation you want.

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Possible to Reorientate rotation of SpinCentre of an existing assembly?