One of the most consistently "in-demand" job positions here in Australia at the moment is for Revit MEP Drafters. Personally, as
part of my coordination role on the new Royal Adelaide Hospital, I'm
spending lots of time in and around Revit models that have originated
with a huge range of MEP subcontractors – mechanical designers and
consultants, plumbing, drainage, fire sprinklers, syphonic roof
drainage, medical gas, pneumatic tube – the list literally does go on from there.
Invariably, these models end up as NWCs that I use to federate and
clash against one another.
it made a lot of sense for me to investigate and fully understand the features of
the originating “flavour” of Revit –
RMEP, otherwise known as Revit MEP. Accordingly, I have spent the
past week checking out The Aubin Academy: Revit MEP 2014
publication, authored (somewhat obviously) by Paul F Aubin, along with Darryl McClelland, Martin Schmid and Gregg Stanley
Aubin is one of those guys that really needs no introduction,
especially when it comes to Revit. Chances are that you have read
something he wrote, watched a video he recorded, or seen him at AU or
RTC. As the author had such established credentials, the question
for me was “does this book fit my particular needs?”
many of you, I have spent a lot of time around Revit over the years.
I have even done some basic modelling with the MEP tools in the suite
version of Revit. In any case, I'm glad to report that this book
strikes a nice balance between theory, explanation and step-by-step
workflows. It covers broad aspects related to BIM management and
office processes, but it also steps deep enough into the workings of
the program to show you how to actually get work done in Revit MEP.
of the great things about the book is the way that the information is
segregated. Do you want to learn specifically about Mechanical
modelling tools? Turn over to Chapter 5 – Mechanical Systems. Or
perhaps you are more interested in pipework tools? Then try Chapter
6 – Piping Systems.
beginning of the book shows great sensitivity to the actual project
procurement process – how does MEP Revit modelling fit in with
the overally Revit model development? You will likely start by receiving a
model from the Architect for context – the book describes “best
practice” methods of linking and interacting with this data. It
also provides some useful insight into data segregation (the kind of
information you should definitely file away for future use), like:
a guideline, projects up to about 150,000 square feet may reside in a
single common MEPmodel..."
book also considers the conceptual way that Revit considers and
calculates various MEP related items. For example, it includes this
illustration of the Darcy-Weisbach Equation as used by Revit:
This type of “conceptual background” is invaluable to me – it comes back to figuring out What Revit Wants. How is RMEP going to analyse and interpret the things that I am modelling? What project parameters are key to the systems analysis process? This book will help you get your head around all of those things, and it does so in readily understandable, easy-to-follow language and layout.
Along with specific workflows for MEP, it also includes great tips that apply to all users of Revit, like this: "We are going to actually delete all the levels. As such, it is important that you select all levels at once as Revit will not otherwise allow you to delete a single remaining level."
Notes relating specifically to BIM Managers are included in the context that makes them most useful, like: "BIM Manager Note: Revit MEP has added Plumbing as a separate discipline and in conjunction has created a new Plumbing Template. For more information on templates and how to create one for your company refer to Chapter 3. Existing projects will be upgraded on open to add the Plumbing Discipline to Project Browser."
Analytical considerations beyond Revit are also described, such as:
"Avoid negative offsets of roofs as this might cause exporting errors through the gbXML tool."
Finally, Paul and his team make sure that they include information that is useful on a day-to-day basis. Here are a couple of examples:
In lieu of deleting sizes it might be best to leave the sizes in the table and simply deselect the size in the “Used in Size Lists” and/or the “Used in Sizing” column.
Once you click Finish or Cancel in the Floating System Inspector panel the System Inspector Information tags will disappear. If you want a permanent tag to remain, you will have to build a custom tag Family for this purpose and attach it to the object.
NOTE: Currently, fittings and equipment cannot have a fill pattern applied to them
As you are placing your ductwork you can use the Justification Controls to keep your ductwork flat on top, flat on bottom, etc.
In this post, I have included just a small selection of the productivity- and knowledge-enhancing gems that you will find if you take the time to read The Aubin Academy: Revit MEP 2014.
To conclude, I would like to include this quote regarding the scope and intended audience of this book: "If part of your job requires that you design building systems and produce construction documentation and engineering design drawings, then this book is intended for you. Specifically, this includes anyone in the Mechanical, Plumbing, Fire Protection, Electrical, and other building design engineering professionals."
I worked with a Structural Engineer recently who used to model Void Forms in his Structural Columns so that he could "cut" them into walls and other geometry.
However, this created a bit of an issue when the Structural model was linked into the Architectural - namely, orange voids would occasionally show up, because they were not cutting anything. Obviously, this type of scenario is not ideal, but it is actually quite common to come across modelling practices that associates or other companies use that don't really fit directly into your own workflow. In those situations, you often need to find a workaround, or perhaps discuss this issue to try and come to a compromise.
In this case, the engineer recommended this course of action: I just noticed some of the columns have the yellow voids displaying, this is a Revit gremlin that creeps in overtime and needs to be fixed every few days or before issuing but I forgot. I can fix it and re send alternatively if you have started working with the file, it is as simple as editing the family changing a parameter and reloading It, essentially doing a regen. The other option is to select all rectangular columns and change the parameter ‘void offset’ to say 2.
How do you deal with differing modelling practices? Have you been able to solve these issues, or have they become permanent headaches? At Virtual Built, it is our primary goal to make teams function more efficiently throughout the entire BIM process. Do you have a problem that needs solving? Or do you have a great workflow solution that you would like to share? Feel free to contact us. Let's collaborate!
In part: Then repeat for the other datatools links changing the Category for COLORS_proengineer, COLORS_INVENTOR, and COLORS_User Data.
after the profiles are set up, you can click Run in the appearance
profiler, and the colors will change according to color properties that
are being pulled from the excel file.
I’ve attached the Excel
file, Appearance Profiles dat file to import, and the NWF with the
datatools links setup. If you drop the three files in the folder with
your models, open the NWF, import the .DAT file into the appearance
profiler tool and run it, it should change the items in the models to
either red or blue based off of the colors specified in the excel file.
example has colors specified in the excel file, but you could use some
other property in the database such as “Out of Service” column with a
value of either yes or no and create an appearance profile that checks
if that property is yes, and if so, set the color of those items red.
the appearance profiler, you need to actively run the appearance
profiler to set the colors if the excel file is updated. If you wanted
more automation, then you may wish to look into the Navisworks API. ...
Quote: By using Navisworks with BIM 360, you can ensure that everyone on the
team has access to the "single version of the truth," collaborate and
connect with the rest of the team for collaborative project review and
coordination workflows. This integrated BIM 360 solution gives you and
your team access to the most up-to-date project data in the cloud,
anytime, anywhere. There are different points of access tailored for
specific roles, such as direct access from desktop apps for designers
and VDC managers, and mobile access for project managers, clients, and
It's important to know that Navisworks and BIM 360 share the same
core technology for large model viewing, navigation, and clash
detection. If you run a clash test in Navisworks and the same test in
BIM 360, you will get the same results. Navisworks and BIM 360 share
the same data structure – which supports round-trip data exchange