3DDWF Z In Wrong direction

markhubrich · ‎01-15-2019

I have been using 3DDWF to export my models for use in Navisworks for BIM coordination. This works fine for my own use since I can apply a transform to rotate my models 90 degrees around X to correct but I send my models to other trades for their use and it is embarrassing that my models do not appear correct in their Navis without them having to apply transform also.

I've been digging through help files etc. looking for option to correct Z direction. This only happens with 3DDWF and not NWC export. Where can I change this? I want my WCS in export to match what my model is set too. Anyone know?

...and fix the kiss export issues.

Sebastian_Eiche · ‎01-15-2019

I always thought the 3DDWF export is using the World UCS or not?

Sebastian Eiche
Application Engineer @Mensch und Maschine acadGraph

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Emanuel.Nestor · ‎01-17-2019

Hi @markhubrich,

Thank you for posting on Advance Steel forum 🙂

Indeed, the model is exported to 3D DWF rotated: the Y-axis is vertical, not the Z-axis.

This is a known (historic) behavior / limitation of AutoCAD export to DWF - it rotates the CS. (Advance Steel just uses the AutoCAD feature of exporting to 3D DWF). This behavior is reported to the AutoCAD + Navisworks development team for further analysis.

The NWC export is a different process and it preserves the CS orientation.

One option would be like that: after import / append the DWF file in Navisworks, you could rotate it using the Navisworks functions for transformations. Though I am not sure if it can be used when import also models from other sources, as part of BIM process.

Another one would be the one you mentioned: to rotate the model prior export.

Another one: to use NWC export.

Sorry for all the troubles, I wish I could help you more in this.

Best regards,
Emy

Emy Nestor