CAD problem when import/link to Revit

[Anonymous]

Hi all,

Pls help me, when I import or link CAD to Revit, I notice that they are not same.

From CAD Layout

From Revit View

As you see in the figure above, they change the drawing properties, which is changing the meaning of the drawing. Valve is usually closed to open valve, lines dark to lines light ...

Pls help me how to fix this issue.

Thanks.

[RobDraw]

Some objects do not translate well. Anything annotative isn't going to import correctly or at all. Some hatches come on as solids. Solution is to simplify the objects in the .dwg as much as possible.

Also, this:

[Anonymous]

Thanks @RobDraw
The main problem with me is the hatch of valve to be invalid

As you know, the MEP system become got big problem if this normal closed valve to normal opened valve, as you see in image that I cloud.

[RobDraw]

You're going to have to change those hatches in the .dwg.

[Anonymous]

Sorry @RobDraw
I don't understand, pls more clearly in this issue.

I tried many times hatching in CAD and linking to the model, but somehow lost the hatch of the valves and the dots intersect between the Lines.
However, the hatch on others is completely normal.
You can open the CAD and Revit files that I have attached to try.

[RobDraw]

Edit the hatch in the block so that the boundary lines do not cross. Revit doesn't like that.

[Anonymous]

Thanks @RobDraw
Could you pls demo for me in the SceenCast

Line pattern

Lineweight

Node

Valve normal closed

And my cad file in attachment

Many thanks Rob

Thanks.

[RobDraw]

Sorry, I won't have time for that for a while. I think I've given you enough information to get things rolling.

[Anonymous]

I think the problem was the CAD itself. It seems that your CAD drawing don't have uniform linetype scale. Some Linetype are being customized, some are set it bylayer, overall the CAD drawing has a lot of inconsistency.

For Valves and Fittings

To correct the issue about the valves and other fittings you might need to create or recreate a blocks for it. Please avoid using global width, because when it transferred to Revit it would adapt the default setting, Revit didn't have similar geometry setting such as global width..

[Anonymous]

Yes, thanks @Anonymous
Agree with you.

At this moment I guide for our team custom again for our CAD files and the current problems have been able to temporarily be resolved.

However, I hope in the near future Revit can understand these settings of CAD without having to change it.

[RobDraw]

---

@Anonymouswrote:

However, I hope in the near future Revit can understand these settings of CAD without having to change it.

---

I wouldn't count on it. The two platforms are completely different at the core. Interoperability is not perfect and will probably always require more work than, say, doing that stuff in Revit instead of AutoCAD.