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Sat, Jul 9, 2016 at 6:39:06 AM | Revit 2017: object placement stability

#1

kenbig


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Being a new user again, I had some training a few years ago, I'm having the same frustrations now that I had then. For practice I'm modeling our house from the original plans we used to build it. I find in spite of my best efforts to place and define all the components for the foundation that components move and dimensions change when I create subsequent levels. How can I insure that the foundation locations are so to speak cast in concrete so that I don't find later on that a foundation wall has moved or is resized? There must be a fundamental good practice that keeps flying over my head. Can someone please help me understand what I should do to prevent these problems from occurring? thank you


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Sat, Jul 9, 2016 at 11:32:18 AM | Revit 2017: object placement stability

#2

WWHub


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Joined: Tue, May 16, 2006
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More than likely this is process error - you are moving the elements.  The first thing I have new users do is to turn off what we used to call "drag and drop".   Look at the small icons on the lower right of your screen.  I don't have Revit up here so I can say which one of these is the correct icon but you want to turn it off.  When that is on, items are easily moved when you may not want them to.

 

Also pay attention to your selections when using windows or crossings.   Items hidden by other elements can be selected with those and you need to check your 'funnel' filter to make sure you have picked only what you want.


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Sat, Jul 9, 2016 at 12:49:16 PM | Revit 2017: object placement stability

#3

kenbig


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Thank you for commenting on this. I concur I'm probably inadvertantly moving objects. I will try doing as you suggest. Once I created the foundation I locked those elements in place and I found that those objects moved when I created sugsequent levels. I may have unlocked them and didn't realize it or maybe this isn't a good practice to begin with or the function doesn't do what I expect. I expect if I contruct a 24' basement wall, outside of block to outside of block, that no matter what else I do on other levels that wall remains that size and won't move. Complicating this I created walls as we constructed them. 1/4" of surface bonding cement inside and out and 2" of rigid insulation on the exterior making it difficult to insure or know where the witness lines line up. Is there a way to have all the layer lines show so I'm sure?

Is there an accepted defined best practive for what I'm trying to do? For instance for a two story house where do I start? The foundation, the first floor or doesn't it matter?

As an aside the text is very small in this field making it hard for me to read, when I control scroll to increase the size the text gets truncated on the right side. Is there a way to make this text wrap?

thank you.


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Sun, Jul 10, 2016 at 9:10:30 AM | Revit 2017: object placement stability

#4

WWHub


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Sorry but locking is a begineers mistake and can lead to problems.   Locks can slow down the model and cause other problems.  Remember, Revit already builds in some location associations that will help you.

 

We only lock a few items in the model.   We pin the 'A' and '1' grids and we lock the grid dimensions.  We typically never lock levels or level dimensions except when we need to adjust a level.  But even then, we unlock after making adjustments.  If we have a special dimension somewhere that must be fixed, we will lock that but this is rare.

 

BTW - This approach also pertains to families.  Revit will create associations in the family when you build it.   This is why you should always place controlling reference planes (and lines) prior to adding family elements.  Then when these items are moved, the close elements you added will also move.  Even though they are not locked!  But if you add the control elements afterwards, they will not work unless you dimension lock elements to them.  When you find a family with a lot of locks, the builder was probably not experienced.



Edited on: Sun, Jul 10, 2016 at 9:11:14 AM

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Sun, Jul 10, 2016 at 11:13:29 AM | Revit 2017: object placement stability

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kenbig


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Thanks for the tips. Most of my experience is with Inventor and Solidworks in the machine tool and packaging industries, so I'm thinking mates when I lock a component. It seems counterintuitive but I'm adjusting. There a numerous videos on line that have helped so I'm moving along much more quickly now.

I'm not familiar with families, probably a fundmental thing that I will look into when I have time. My goal is to become familiar with the basics for some future potential work with fire control system addons.


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