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Allows to rotate the cable trays in a horizontal section, so we can place horizontal cable trays with the bottom facing a wall. Placing channel cable trays upside down is also desirable, I have seen some constructions using this positioning, mainly for small size ones.
Tim, aside from the hangers which you may not actually need depending on what you are doing, Fabrication Parts are quite useful.
I find it easier to draw fab parts where I need to use specific angles and routes where bends are close together as standard tray really isn't good for that, especially for setting up and down its really quite difficult to use sometimes.
As Martin pointed out you can put Fab Parts in any orientation which is one of the main reasons I use them, as well as them looking for realistic - they are more true to real life in a few ways.
It's not like you are doing calculations with the normal tray so it doesn't require you to lose basic functionality to swap to Fab Parts.
When they were first introduced to Revit the selection of available parts was very limited and quite useless apart from as a proof-of-concept. Having spent a little bit of time to create a library of Parts in Fabrication CADmep which I then imported into Revit I am quite pleased with the results.
3 is not a deal breaker, it is merely fairly very annoying....
I've only been working with Revit since 2012 so i'll take your word for it regarding the ten year wait. I still remember the day they released the Edit Path tool for cable length adjustment. I was beside myself with joy and the whole industry barely said thank you for something they had been asking for, for years.
You should definitely give the Fab Parts a try, you might actually quite like them. One thing of particular note is that when standard tray makes a set it uses the steepest bend possible which is almost always wrong, Fab Parts use the shallowest bend possible which is almost always correct. 120mm 4-core armoured cable does not like steep bends on tray!
Try and setup a normal tray to have a 12mm sidewall height to match a light duty cable tray, its impossible to make it be less than 25mm. When you change the orientation of the tray you have to swap the numbers in the width and height parameters to make it the correct shape which means you will have two different size entries in the schedules for the same size basket. Neither of these issues applies to Fab Parts so there are substantial benefits.
So my understanding is that conduit .itm content is not available in Revit currently? So Autodesk's solution is to design the cable tray using Fabrication parts and the rest of the electrical project in design parts? It just doesn't make sense having to set up a content database in CADmep just for cable tray.
I agree that fabrication in Revit can be a very powerful tool and the way of the future, especially having set up and managing a few itm content databases on the piping side. It allowed us to get so much more information out of our designs, along with being able to send it out to the shop with minimal program hand-offs and rework for fabrication. Having that experience also makes me realize how much cost and expertise it truly takes to properly manage itm content and databases and can't be done half way. If it only works on tray and not conduit, it doesn't work in my opinion...
Just started using Revit. Not something I'm familiar with really but picked up the Legrand libraries for cable management. It could be really beneficial for me for costing and adding to our models, but are we seriously saying we cannot rotate the cable trays? Its really common for tray to be fixed to walls, and to change face along routes.
Correct, the native cable tray content cannot be rotate so that the open face points anywhere but upwards.
You'll need to use fabrication content if you want to do it realistically. That is a bit more involved however, you'll need to create the content library in Fabrication mep and then load the library into revit.
PLEASE allow us to rotate the orientation of trays so they can run along a wall open side facing into a room. This is a common method of installation and is so frustrating that this is not a feature.
I hope Autodesk fixes this issue. It is such a simple thing yet it really hinders work production. The only thing I found to work is to create along the Z axis (start from one elevation and end at a different elevation), connect a fitting on the ends, and then rotate from an elevation view. the fittings will allow you to stretch the straight tray to prefered length.
Another way is to create tray running "typically" connect a fitting on the ends and rotate the fitting only. by rotating the fitting, it will rotate the straight tray with it.
2016 this was first asked for and its still not included, an absolute disgrace that industry standards can't be accomplished due to a couldn't care less attitude from Autodesk.
Is Autodesk actively considering an overhaul of the cable tray and conduit system families? I've see plenty of threads like this one that go back over 5 years!
I'm going to repost this on the numerous Cable Tray/Conduit Revit Ideas posts in order to try and re-ignite some drive to get these issues to Autodesk as some of the ideas on here go as far back as 2016 we really need to give it a push to Autodesk to at least have these issues on their radar for future releases.
I attended the MEP Q&A online this year https://youtu.be/y3sHuWQqtYc?t=1229 and outlined in a few of the missing features of the cable tray system families and I was told "Just use the FAB MEP Cable trays" doesn't look like they will update any time soon.Why not update both in parallel? Improve the design modelling features first then mimic those features to the FAB parts and allow for simple upgrade from design to FAB?
A lot of us use cable trays at the design stage and want fully flexible families with a few straightforward "features".
Just a few of the basic features we want:
Run trays at any angle horizontally (As per this thread)
Add clearance Zones to the system family.
Add system types to cable trays (The same we do with ducts and pipes) to standardise all system types rather than instance based.
Buildable overall dimensions to the tray geometry
Ability to apply design data to a cable tray system or selection of trays (Number of cables, circuit references, user defined parameters)
Apply specific materials to cable tray service types (To allow for consistent colourisation of the various service types when exporting in 3D for design)
And as a company we tried Fabrication parts, that was worse than the Revit cable tray, fabrication parts for generic tray hasn't been updated since 2021, so good luck getting content.
+100 on this one! @BIM.Champ that's an excellent list of starting points to modernize pathways and begin treating them as first-class systems in the model.
