line too short to draw in Revit?

[sami]

I’ve been trying to import a logo that was done in AutoCAD (lines & hatches), when imported into a family & exploded it loses several lines and hatches, the message I get is that some lines are “too small on screen”
I even tried tracing over it and I get the same problem, it seems I can’t draw lines less than 0.75mm in length. I also tried recreating it on a larger scale then rescaling but I get the same error message..
I guess the bottom line is that Revit doesn’t allow lines to be shorter than a certain length..

Any ideas on this?

[cliff collins]

Try exporting it as an image from cad then import into Revit.

There are known limitations in revit on mimimum line lengths.

cheers

[Mike Sealander]

Which of course I don't understand. When is a line too short?

[hugh.69031]

Anything less than 1/32 of an inch, as far as I know.

Hugh Adamson
www.hatchkit.com.au (http://www.hatchkit.com.au)

[patricks]

Anything less than 1/32 of an inch, as far as I know.

Hugh Adamson
www.hatchkit.com.au (http://www.hatchkit.com.au)

That is correct. 1/32" or 0.75 mm is the limitation in Revit. Always has been.

[m20roxxers]

If you use the scale tool you can make these smaller. Try loading it in much larger then scaling down lines or changing the length dimension of the line, you can get these down to 0.2mm any smaller and you will get the error.

[odhee]

Whats up people. I know this is thread is from a long time ago, but I have a good solution for anyone that seeks a similar answer. All you need to do is create an AutoCAD drawing, then import the drawing into revit and explode it. it will keep your short lines or radius at the scale they were drawn. You can't ever draw it in revit but if you explode a autoCAD drawings it will preserve anything higher than 1/128". Good luck!~

[odhee]

remember to scale the drawing down first

[MikeJarosz]

I think the "line too short" issue is an attempt by the factory to prevent zero-length lines. A zero-length line is when the start point and end point coincide. They can result from scaling down data or from moving data with connected lines. An example would be flattening a 3D object into 2D. All the vertical lines become zero-length.

If there is a reason to avoid zero-length lines, I am unaware of it, but the factory seems to think they are evil. Why not allow them, and provide a cleanup command to delete them occasionally? The line-too-short issue comes up most often with serif fonts that have been exploded into lines, and also when dealing with finely detailed aluminum extrusions in curtain walls. I had some German extrusions that had 2mm radii. It drove me crazy. I couldn't draw them accurately even full size!!!

[john_ratliff242905]

For Details draw an oversize detail. Ex: 1:10 and setup either a scaled view or sheet to get the desired graphics results. For anything in the working model, sorry.