Ceiling hosted Family in Linked model.

[Anonymous]

I need to attach a ceiling hosted lighting fixture to the ceiling in the linked model. I can't use face based family as it can't cut the ceiling. is there any way to copy monitor the ceiling??????

Regards,

Karim

[Anonymous]

I don't believe you can copy/monitor the ceiling. You can use the coordinate the light fixture between files. Ask the ceiling owner to cut and paste your light fitting into their project. (you'll need to copy the ceiling into your project first to allow hosting.)

The use the collbaration ribbon and set coordination to 'Allow bulk copy' in the light fitting behaviour.

When you re-load the link with the light fitting Revit will ask if you want to bulk copy the fixture, say yes! you now have coordinated light fittings with the linked ceiling, you can make changes as required.

Hope this works

[L.Maas]

No, copy monitoring ceiling is not possible.

Some possible solutions

1-Put your families in the linked file itself.

2-Create an additional ceiling in your own model, hide the one in the linked file.

3-Create the ceiling in your own model and remove it from the linked file.

4-Still use face based families (or non-hosted).

You mention that face based families do not cut holes. But is it really necessary?

I found that often just placing a light fixture is already clear enough for other parties that at that location a hole will be needed. If needed a detail drawing can assist to clarify the situation/dimensions. As alternative, just some model lines to indicate the hole are often also enough.

[Anonymous]

cutting the ceiling is realy necessary as it covers the light source in the downlight, doesn't show proper lux for the space.

[garyjwoodall]

Face based lights cutting ceilings in linked models would be a welcome feature if Autodesk could finally understand the amount of coordination required with lights and sprinklers and occupancy sensors and speakers and diffusers and supply grills and the reality that the architect is not always the owner/creator of these elements. Copying lights into the architects model means that they are then responsible for the lights and their future movement. Another cumbersome issue is clash detection which sometimes demands that the architects follow the other disciplines to cut holes in the ceilings to reduce the clash counts generated by Navisworks. 

[RobDraw]

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@garyjwoodall wrote:

Face based lights cutting ceilings in linked models would be a welcome feature if Autodesk could finally understand the amount of coordination required with lights and sprinklers and occupancy sensors and speakers and diffusers and supply grills and the reality that the architect is not always the owner/creator of these elements. Copying lights into the architects model means that they are then responsible for the lights and their future movement. Another cumbersome issue is clash detection which sometimes demands that the architects follow the other disciplines to cut holes in the ceilings to reduce the clash counts generated by Navisworks. 

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Why is it that people blame AutoDesk when things don't work the way that they think they should? You are failing to see the logic behind the bigger picture and maybe should rethink about the way Revit actually works.

Why do you think there is a set of MEP families for the architects? So they can put them in the ceiling and cut holes. I've been on the MEP design side of things for a long time and have seen a lot of different MEP design drawings. One thing that the vast majority of them had in common is that the final location of ceiling devices is driven by the architect. That's not to say it is a one way street, there has to be coordination but in the end, if the architect shifts the ceiling grid and the MEP plans are no longer aligned with the grid, they don't shift the grid to align with the MEP but the MEP shifts to align with the grid.

[garyjwoodall]

Rob Draw,

I don't blame Autodesk for their products being what they are or for being told that I am an unexperienced user of the product who should shut up and go home. You have without doubt more experience than I do using all of the various platforms of Revit. 

However, I respectfully ask that the orthodox view of ceilings be reviewed from time to time. 

I work outside of both the Architect's model and the MEP model as a consultant. My work belongs to neither of those professionals and they resist importing and assuming direct ownership of the elements I create for a host of reasons.  

Thank you and please have a more pleasant day. 

[RobDraw]

I'm sorry...

I understand that this is not something that really concerns you but am really struggling as to why you would complain about it. You aren't responsible for the holes, are you? You're just filling them, not making them.

[garyjwoodall]

Actually I am responsible at some level for making sure that holes are there, because when an owner is using VR to tour the linked set of all models to walk through a million square feet of a facility and face based lights don't cut the ceiling tiles, I get called on the carpet because the view is "not accurate". Partly it may be a misconception on how close to actual reality a Revit model should be considered.  

To your other point, I am participating in this forum, interacting with you because I (and the architects and engineers I work with) do have questions and am interested in learning how to set up a linked model with just light fixtures so that it cuts a whole bunch of holes in the ceilings found in a separate model without having to import the elements into that separate model. Importing the model confuses authorship and complicates revisions as design evolves and ceilings change. My work also is separate and distinct from the MEP model which also looks at my information as an external link. So I would ask if there is a way for a hybrid between linking and importing that allows for a closer, temporary and reversible meshing of the geometries so the lights could be seen as cutting the ceilings with some method for regular and repeated updates? Thoughts about whether binding 5000 lights in a group and copying the group might work?

Any other suggestions would also be welcome other than to insist that ceiling hosted lights only be placed with the architectural model.

Thanks again for your patience with my questions.

[ToanDN]

@garyjwoodall

It comes back to the question of "who own what?".  If you want to be owning and making the holes, then perhaps you should negotiate with the architect to leave the ceilings for you to model in your file.  

[RobDraw]

And what is the definition of spam?

[a.abdulla]

Poor collaborator.  Do not hire this person/ firm.