topic Re: Set Z Elevation to Display TOD/BOD Relative to FF in AutoCAD MEP Forum

Set Z Elevation to Display TOD/BOD Relative to FF

tonyw6568 — Mon, 15 Oct 2018 11:55:51 GMT

Good Morning! I am currently using MEP 2018 with EastCoast CAD add-on for fabrication. I was using the older stand alone version of EastCoast and it was easy to set slab elevations for each floor so that the TOD/BOD would read correctly and the duct would be at the correct height when I put it into Navisworks. How do I set FF elevations in MEP so that the autotag TOD/BOD reads correct? For instance, I am working on a 2nd floor project where top of slab elevation is at 115'-0". I have to draw 14"x14" duct in MEP at 126'-10" to get it at the right elevation in Navis, but the autotag in MEP reads 127'-5"/126'-3". So I have to go thru and delete all the autotags and insert my own wblock with editable attributes to show the correct TOD/BOD. Then if I make any adjustments to the duct run the autotag comes back on and I have to delete it again. I want to put the duct at 126'-10" center and the autotag read 11'-5"/10'-3". I know I can turn autotag off and not have to mess with it, but that kind of defeats the purpose of having that feature. Thanks in advance for any help.

Re: Set Z Elevation to Display TOD/BOD Relative to FF

tonyw6568 — Mon, 15 Oct 2018 12:35:41 GMT

Update: I'm not sure what I ended up doing yesterday, but now a duct that says 128'-0"/126'-0" is at 12'-0"/10'-0" above the 115'-0" slab elevation in Navisworks (128'-0" - 115'-0" = 13'-0"). Guess I should have taken notes yesterday when I was messing with things...

Re: Set Z Elevation to Display TOD/BOD Relative to FF

tonyw6568 — Mon, 15 Oct 2018 18:58:19 GMT

Now for some reason the only thing that shows up in the Properties box is "Misc" and just shows info about the UCS. It used to show current layer, etc etc...

Re: Set Z Elevation to Display TOD/BOD Relative to FF

Tiana_Y — Thu, 18 Oct 2018 19:58:00 GMT

Hi @tonyw6568,

Thanks for posting in the forum! Just for my own clarification, are you using Revit MEP or AutoCAD MEP?

Re: Set Z Elevation to Display TOD/BOD Relative to FF

tonyw6568 — Fri, 19 Oct 2018 14:07:36 GMT

Sorry, AutoCAD MEP...

Re: Set Z Elevation to Display TOD/BOD Relative to FF

Tiana_Y — Tue, 23 Oct 2018 16:52:11 GMT

Hi @tonyw6568,

So it sounds like you want to set slab elevations in MEP, which sounds like you may want to try Defining System Elevations, which I linked an AKN article with steps on how to do that. Also, could you send over a Screencast showing the behavior and the file?

If one or more of these posts helped answer your question, please click Accept as Solution on the posts that helped you so others in the community can find them easily.

Re: Set Z Elevation to Display TOD/BOD Relative to FF

Tiana_Y — Fri, 26 Oct 2018 13:48:32 GMT

Hi @tonyw6568,

I'm just checking in to see if you need more help with this. Did the suggestion I provided work for you?

If so, please click Accept as Solution on the posts that helped you so others in the community can find them easily.