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Forums >> Revit Building >> Technical Support >> Revit 2008-Scary Scaling Problem! Help!

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Tue, Jul 24, 2007 at 9:08:24 AM | Revit 2008-Scary Scaling Problem! Help!

#1

Hogmodo


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I have attached images of a problem that I have run into.  I have a 1/4" scale building section.  I created a callout from the section at 3/4" scale and inserted it on the same sheet as the building section.  I then created a "duplicate with detailing" copy of the 1/4" building section (didn't want to lose the details created in the building section), changed the scale to 3/4", cropped to just the exterior wall, and inserted it into the same sheet.

Image No. 1, attached, shows the two supposed 3/4" images overlapping slightly.  Notice the the 4" concrete slab and the 4" layer of sand are not the same size in the two wall sections.  When I activate the "callout" and measure the thicknesses, they scale at roughly 3-3/4".  (The "duplicate with detailing" has the same slab and sand at exactly 4" each.)  In the same callout, there is an attic railing wall that is dimension at 4' and measures at exactly 4'.  So part of my callout is "to scale" and part "is not to scale."  In Image No. 4, attached, there is an overall view of the sheet.

The railing wall, I think, was created after the callout was created.  So it is scaled correctly.  The slab and sand layer were created before the callout.  If you can't trust the callouts to really be at the scale selected, I can see where dimensioning in the callouts could be messed up and might lead to problems.

Any ideas?  Anyone?



Attached Images

25897_Revit_Scaling_Problem_1.jpg25897_Revit_Scaling_Problem_2.jpg25897_Revit_Scaling_Problem_3.jpg25897_Revit_Scaling_Problem_4.jpg

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Tue, Jul 24, 2007 at 9:17:37 AM | Revit 2008-Scary Scaling Problem! Help!

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broncos4life


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Do you guys have an FTP site that you could load this up to then i could take a look?

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Tue, Jul 24, 2007 at 9:51:10 AM | Revit 2008-Scary Scaling Problem! Help!

#3

WWHub


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Are your slab & base edited slab or are they filled regions that you created in the 1/4 scale plan?

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Tue, Jul 24, 2007 at 11:14:55 AM | Revit 2008-Scary Scaling Problem! Help!

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Hogmodo


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The slab was created normally in the project.  The sand fill was created with a filled area in the detail.  They both measure 3-3/4" in the callout and they both measure exactly 4" in the "duplicate with detailing" section.

We don't have a site that we can upload the project to.  The project is about an 11 meg file so it is close to emailing size.  Any suggestions?


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Tue, Jul 24, 2007 at 12:18:30 PM | Revit 2008-Scary Scaling Problem! Help!

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WWHub


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I don't know why they measure differently but I believe it has to do with how the filled region was created.  If that filled region is slightly off And overlapping the slab, that might cause the inconsistancies you have.

For grade slabs, I define them as a composite with the granular base included in the slab definition so I don't have to do filled regions in details or sections.  I even do my perimeter insulation as a sweep on the slab edge so that too is already in the model.


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Tue, Jul 24, 2007 at 2:30:04 PM | That's it!

#6

Hogmodo


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I omitted the filled region on the building section and revised the floor family to have a layer of 4" gravel under the 4" slab.  That eliminated the scaling conflict.  Nowwwwwwwwwwwwwwwwww!  How did the filled region in the callout shift while the filled region in the "duplicate with detailing" did not?

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Tue, Jul 24, 2007 at 3:09:19 PM | Revit 2008-Scary Scaling Problem! Help!

#7

WWHub


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One of the frustrations I have is when model or callout elements move ever so slightly and cause havoc with my detailing.  It seems that if you just touch a call-out or section line, the view moves just enough to throw off my 2d work.  Remember, for every callout/section/ elevation view, there is a "real" 3d model you are referencing with clipping parameters.  Detail work is pasted overtop of that but not usually locked to the 3d element. 

 

My best solution to date is to pin the callout/ section so it can't move.  When all else fails, you can always blow away the 2d stuff in one view and copy to clipboard from the good then paste same place in the offending view or, since you know all the 2d stuff is in the same place relative to all the other 2d stuff, just filter select all the 2d stuff in the view and move it to the correct place collectively.


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