The more we venture into BIM (taking real advantage of our Revit models), the more this subject is starting to tick me off. You’ve been warned!
Let’s take a look at what caused this “rant”.
Here you can see the family parameter “Structural Material Type”. I want to use this really bad because I’m doing quantity take-off schedules for all elements, which include structural framing elements residing in a linked file. So I want to create a framing schedule for steel and another for concrete. The reason is that I want to find the total weight of each material in the job and as you know, concrete and steel have different densities.
So to calculate this, one can create a calculated parameter in the schedule and voila. I would prefer to expose the density used in the schedule (so everyone can see it. I don’t like to bury assumed values in formulas if possible). However since the families reside in a linked file, you cannot add this information to your project via a project parameter, so you can only have one formula with a fixed value (one density value). So the only way to do this is to create schedules for framing members with different densities. I know, I can get into the linked file, but that’s beside the point.
Unfortunately, you cannot schedule the above highlighted parameter, which would typically raise the question, then why the %^&**&?!!@? do we have it? How can I filter views/schedules of my insanely intelligent model? I cannot even filter by family name or type either!
This is only one little thing I came across and is very irritating. I found more issues when calculating volumes, but that will be another very lengthy post, so stay tuned.