Array ( [page_title] => User issues when using Revit [curr_path] => https://www.archicad.co.za/training/archicad-migrate-to-openbim/revit-user-issues )

User issues when using Revit

There are a number of issues that users come across when using Revit. Below is a selection taken from the forums with some responses from the ArchiCAD team.

Revit is not backwards compatible.

Revit products do not have the ability to save a file so that it can be opened in an earlier version. When the file is upgrade to a new version of Revit, you can't save in an older version. To transfer a Revit 2014 rvt file to a previous version, you can export your Revit model to the IFC and open the IFC file in the previous version of the application. Revit is not backwards compatible. This is something I wish Autodesk would change.

Always keep the previous version for a few weeks after an update...for those "just in case" issues....(of course we forget about them usually until the building is built and IT is yelling at us to make room on the server drive) Not a great solution, but I read somewhere of exporting the newer file as an IFC, then opening it up in the older version. Never done it, and I believe you lose a great deal of info, but perhaps worth a try?

IFC Import from Revit is not very good at all, even if the IFC model was saved originally on Revit.


Speed: Number of views

Revit is amazing when it comes to creating views. You can create sections, elevations and 3D views with the blink of an eye. This is great, however, an excessive amount of views—especially 3D perspective or isometric views—can weigh a model down. Once you're done using the section you cut to quickly check something, make sure to delete it. Try keeping the philosophy of "name it or delete it" when it comes to views to keep your model in check as you go.

Revit does not support multi-threading, thus having a lot of views will show down your project simnifically. Archicad supports multithreading & background processing, thus it calculates updates in the background while you work. "It's hardware that makes a machine fast. It's software that makes a fast machine slow."


Embedded CAD files or drawings

This is a huge source of file size and model performance problems in Revit. If you absolutely must bring CAD into a Revit model, always save a copy of the file first and clean out the riff raff. Delete any elements that somehow snuck off into no man's land, purge the file, run the "overkill" command and audit it. Make sure when you type in "Z E" for zoom extents that your drawing is centered on the screen.

When you bring the CAD in, always link it instead of embedding it. That way, you can find the file when you need to modify it, reload it or remove it. Embedded CAD has the knack of getting lost in your views. Sometimes it can get hidden and become difficult to find.

Images are almost a separate issue. When imported into the model, an image will maintain its original size even if you scale it down in the view. If you find yourself scaling the view down quite a bit, unlink it and cut down the image size prior to loading it into the model. Keep only the images you really need in the model and delete the rest using the manage images tab.

AC 19 generates views of massive projects within a minute, & due to background processing it updates your vies as you work.


The most common use of AutoCAD by a Revit team is for drawing production

The most common use of AutoCAD by a BIM team is for drawing production. Building design models created with BIM software such as Revit Architecture are exported and xref’d into AutoCAD for detailing. In this manner, the details created using AutoCAD are still based on the highly accurate Revit design model. Once the AutoCAD drawings are complete, they are imported back into the Revit-based software to keep the project drawing set centralized and coordinated. Linking the AutoCAD details to Revit ensures that if the AutoCAD details change, the Revit documentation set is updated. This mixed-mode drawing production strategy is particularly useful for the portions of the Revit-based design that are fixed -- minimizing the chances of having to manually update AutoCAD-based details.

Source: (See workflow between Revit & AutoCAD) - http://www.cadalyst.com/aec/bim-with-a-side-2d-1-2-3-revit-tutorial-3783

Working cross platform is time-consuming & creates double work, where in ArchiCAD you can design & document in the same software. (Conceptual to documentation)


Autodesk subscription fee

My autodesk subscription fee is one of my biggest bills every year. I'm a sole practice building designer, and every year I get an e-mail from my reseller asking for another $1600NZD. It's the only contact I have from them every 12 months apart from the Christmas "O what a year" one. I've been paying a 'subscription' for about 6 or 7 years in the hope Revit will get it's shit together, where it will have a decent array of drafting tools, have a text editor, it will let me draw as fast as I can think.

ArchiCAD has a perpetual licence & rental options.


Text Editor

I have been an enthusiastic user of Revit for six years, preaching it's virtues to anyone who would listen. But as for drawing notes, I would quietly use the text the way it was, put up with it, and say to myself "next year they'll get it right - how could they not?"No more. Enough is enough - I'm taking matters into my own hands.

I pulled up AutoCAD, typed my notes in there all nicely formatted and hit the insert-link-cad command in Revit. Why oh why should this have ever happened?

There are only two possible reasons for this: internecine politics at Autodesk, or complete ignorance of practical real-world application, as r.grandmaison suggests. This is one of the most annoying behaviors in Revit. I can’t believe that we’ll have to deal with it for at least another year. Pretty sad. I can't believe this thread was started in 2009 and in 6 years this rather straight forward issue with Revit has still not been addressed. A new text editor would be such an improvement. The text editor is a joke, at this point the integration of WordPad would be an improvement.

Seems like Revit user’s number one complaint. Text editor in ArchiCAD is great. Some people actually go into AutoCAD to do their text blocks & import them into Revit.


User’s want more functionality with images

Should be able to link, update and re-path images. Treat them like external resources.

You can in ArchiCAD