Hi guys
Working on a grille family and have come across an odd issue that I can’t work out.
The grille seems to work fine, when changing the size it updates about the centre of the grille face and in the family the ref planes through the centre are defined as origins. The problem is when I connect to the family the whole grille jumps over to a new position, the flex or duct is clearly not connected in the 3D object sense, but Revit thinks it is connected logically.
This is the fourth grille I have created using the same procedure and the rest work fine.
Screen grab of what happens.
To confuse things more, it only happens when the flex is the same diameter as the spigot on the grille, it is puts a reducer in then the grille doesn’t more.
Any ideas?
Cheers
MS
Solved! Go to Solution.
Solved by mark.silcock. Go to Solution.
This is a nicely detailed post, but would you be able to post the actual .rfa family file? Also, which version of Revit are you using?
Sure, RMEP 2013
Family attached.
Thanks
I'm not able to reproduce the situation in which the grille moves, but I do see the incorrect appearance of the flex duct connection. It appeared correct at first, but as soon as I click and dragged the grille, the flex connection got jumbled. You mentioned that it seems to work correctly when a reducer is used - try going to such an instance and move the grille. Does the apparent connection get messed up?
I cannot find the cause of this behavior. I removed the nested Family and recreated the Connector a) horizontally to a new extrusion and b) vertically directly to the grille. In both cases, the buggy behavior remained. From what template/file was this Family created?
Original family came from here http://www.productspec.net/products/25825/holyoake-industries-ltd/exhaust-and-return-grille-ec-125.a...
Also started on another family using a grille family from the same supplier and it is doing the same thing so must be something in their creation.
Attached the families as well.
I notice in the original if you add a room calc point it is situated at the bottom left hand corner not the centre of the grille. I also notice the room calc point can’t be moved so is that always at Revit’s 0,0,0 equivalent?
This issue should be brought up with the supplier. Surely, someone has encountered this before and perhaps they have a remedy. Maybe they have a program that write their Families and that causes this odd behavior.
It's for reasons such as this that I don't use Families from suppliers unless there are huge time constraints - I always build my own. I believe that many of these Families are created by people who learned how to use the Family Editor to create Families, but wouldn't know how to use them in a Project.
Ok so I went back the the original family and made sure the ref lines through the centre of the grille where defined as th e origin. That seems to have sorted it.
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