I would like all family categories to have a tick box option in the family properties under "Other" (same location as 'shared' & 'Cut with voids when loaded etc) to determine if the family is cuttable or not. I would like this control per family, not by category.
As I understand it from what I have read in forums & responses by Autodesk, the reason some categories are cuttable & others aren't is in part due to maintaining performance of the model. That's fine, but I think we are past the days of slow machines. Revit is running as fast as it ever has these days, lets give this control to the users and do away with these often confusing rules.
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I know that you technically don't usually cut furniture, but sometimes you need to. Same goes for specialty equipment. It would be great if all families could just default to being able to be cut in sections or at the least have an option in the family that you could check or not check.
I find it absurd that it is assumed that noone would ever want to put a section through a bath, diffuser, etc. I am forever having to make generic families that dont 'Discipline filter' due to this lack of family cutting.
It's very frustrating to have to pick incorrect families for objects just so they will display correctly in the model. A number of elements end up as generic when they should be specialty equipment, furniture, etc. This then leads to the need for extra filters to modify object visibility that would otherwise have been handled by category setting.
Yes, this is absolutely a pain in the rear. I have so many models that I can not cut through and trying to schedule this equipment is impossible and let's not say anything about the presentation on drawings. OMG This is probably a few lines of code to change this, why not just do it or at least give us a radio button so that we can control this option ourselves.
The graphic is for whether you can tell an element to show/not show when the family is cut, vs. whether a family is cuttable. For example both casework and generic models will cut, but casework I could have detail components indicating how the element is made and mark them as only being visible when the element is cut, while you can't with generic models. The graphic is from here.
I constantly have families that disappear in a view (meaning they don't show up on my monitor). Close and reopen the view, and they will be visible again. It happens in multiple projects, with multiple families. Its getting really annoying.
The families are electrical families, with annotation symbols. The annotation symbols are what show up on the plans, and they are what keeps disappearing. They are hosted on the workplane at level 1, elevation = 0'-0". I have tried lowering the bottom cut plane to -1', but that didn't make any difference.
These are all views that have linked architectural models, and the views are all set to wireframe. When the objects disappear, its tag will still show up. If I edit a tag, the object will show back up.
Other possible culprit: someone is adjusting the view resolution so the annotation symbol disappears and only the geometry is visible. Zoom in next time it happens and see if the actual object is visible.
I was also thinking it might be a video card problem. I'll try the hardware acceleration. There are a couple of options for that (I checked on "Use Hardware acceleration" under the user interface visual experience option." I'll see if that makes a difference.
It looks like I have a NVIDIA Quadro 4000 card, which was recommended and certified for Revit 2013 (I've probably had this computer that long). But the P4000 is the closest thing listed for Revit 2018 and windows 10.
This issue is also happening for me with electrical equipment as well as text boxes. I have noticed that if you select the object and move it in the view (I just toggle the up/down arrows) then the object appears in the view again.
After messing around with some settings, I was able to get objects to reappear when I turned off anti-aliasing (Options->Graphics->Graphics Mode). This was a temporary fix as the issue happened again after closing and re-opening the view though, but that at least indicates to me that it is likely a graphics/rendering issue. I have also tried turning hardware acceleration off, and it seems to behave the same.
I am operating Revit 2020 with a Quadro P600 and 32GB of Ram and I am having this issue all the time. I see it happen more on larger models so I am suspecting its a memory handling issue in revits code or a video ram issue. About half of my specialty equipment families are dissapearing, but they will reappear as I hover over them to select, then will reappear if i close the window and reopen it again. Tags still appear.
Thanks for the idea, however its not really possible to put in a new GPU in a laptop. The workstation laptop I have met or exceeded all system requirements that Autodesk lists including the vram. I understand that the more powerful hardware will handle bigger more complex models better and improve performance, but I am dealing with small models for foodservice equipment, no more than 100mb files, there should be no reason to need more than 2GB of vram to display them. I appreciate the ideas, but feel like this is a bug in Autodesk that they need to fix, it only happens in certain year versions, not all of them.
FYI, those hardware recommendations are not realistic. the same way Microsoft says you can use Windows 11 with 2GB of RAM. It basically means you can start the software, move the mouse around, and that is it.
Edit: and the VRAM recommendation from Autodesk is 4GB. So your 2GB are too low. Even by their ridiculous recommendation. The VRAM is used to store data the GPU (the actual processing chip) processes and data go in and out of the GPU all the time. VRAM is much faster than your regular RAM. Like normal RAM in a PC may be DDR 5, while a GPU will already use much newer DDR 6 or 7. That VRAM is much more expensive, which is why manufacturers try to be stinchy. But as soon as you run out of VRAM, the GPU will use the regular (slower) RAM, which then also can't be used by the CPU. If you have a 16GB RAM system, it is significant if the GPU has to steal 2-4 GB of that RAM.
Revit* is Building Information Modelling (BIM), therefore each Revit building model is built from different parts, just like a real building would be. Real buildings are constructed from foundation upwards and would typically have walls various thicknesses and lengths, doors & windows various heights, color, type and so on. The same principle is used in Revit, which makes it an incredible and powerful tool to use.
Families creation is a large and complex topic. Only when you know all the basic functions can you start creating families. Autodesk has made a detailed guide. You can download this manual from the link: Revit Family Creation: A Step-by-Step Introduction
Not long after we started posting free Revit families, we began to receive a lot of comments thanking us for what we do. Among them were some comments from people who also want to share their Revit families libraries with others for free. For this reason we decided to make a separate post which we will regularly update.
We pride ourselves on the quality of stairs we offer here. It has been voted number one among other families. The ladder families are available for a quick and free download at the bottom of this page, so scroll down to check it out!
The family currently has families nested within families and families nested within those families all the way down to families even for the wall brackets. I want to remove the holes in these wall brackets as they are not necessary for my level of modelling.
I want to combine some of these families into one without nesting them to reduce the file size as the Lift Family is currently over 30,000KB. I also want to do this so I can add Parameters to the family such as the Lift Car Travel Distance which will then determine the length of the Guide Rails and the Number of Wall Brackets needed.
You probably have to start from scratch and avoid nesting dolls. Maybe you can have all the nested families in one (different types controlled with visibility). Maybe you can recycle some of the nested families after you cleaned them up.
My personal goal I don't always achieve is 500kB for simple families and 2MB for complex ones with nesting. If the family has really useful functions you can have more. but 30MB sounds like overkill.
If you want to automatically adjust the number of brackets based on travel distance then the method of doing that is to use a parametric linear array but the bracket component in the array would be a nested family to make this work, so your stuck with nesting for that element.
You could also ask the manufacturer if they maybe have a family at a lower level of detail (LOD) - some manufacturers have recognised the need for this at design stage and provide alternative versions.
Also although 30 megabyte is excessive for a family, in Revit terms that's probably quite small in relation to the project file which might be 200 MB to 1GB or larger and as far as I'm aware having multiple instances of a family in the project file is not additive in the same way as blocks in Autocad, so if you have 10 instances placed in the project it shouldn't result in 300 MB addition to the project file size (you could easily test that).
Another way is to use the "Edit Family" option to open the family in the Family Editor. Once in the Family Editor, you can select multiple extrusions and use the "Combine" command to merge them into a single extrusion. You can then delete the original extrusions that you no longer need.
It is also possible to use the "Edit Family" option to remove the holes in the wall brackets, or any other unneeded details, from the family. You can also add new Parameters to the family as you need and control the length of the guide rails and number of wall brackets.
We have a couple of very large families with loads and loads of shared nested families wich all use association to the host family and we are now at a point that these families get less and less workable. I searched the internets for a list of things that slow down or speed up families but no succes. 152ee80cbc
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