<p>It's not an easy task and according to my knowledge there is no way to do it fully automatically (I might be wrong of course).</p>
<p>You have options as follows:</p>
<p>Read scans and ...</p>
<ol>
<li>recreate it manually in CAD application</li>
<li>recreate it using a <a href="https://en.wikipedia.org/wiki/Graphics_tablet" rel="nofollow noreferrer">digitizer</a> (in the old days they had pucks - a kind of magnifier with crosslines to digitize from printouts/blueprints)</li>
<li>create 3D object omitting 2D drawings</li>
<li>convert bitmap to vectors in 2D app</li>
<li>use a scanning service <a href="http://www.amsimaging.com/blueprint-scanning" rel="nofollow noreferrer">like this</a> (would be expensive)</li>
</ol>
<p>Depending on complexity of your schemas, the easiest way, would be option 1 or 3. Option 4 is very doubtful (even if it's the most automatic way, it won't create useful data).</p>
<p>The most of CAD apps have an option to import bitmaps and then work on such a &quot;background&quot;. For example, in AutoCAD use command <a href="https://knowledge.autodesk.com/support/autocad/learn-explore/caas/beta/CloudHelp/cloudhelp/2015/ENU/AutoCAD-Core/files/GUID-0F75E36F-6138-424C-9510-5847CE1D8852-htm.html" rel="nofollow noreferrer">Imageattach</a></p>

CC BY-SA 4.0
2016-08-30T06:38:57.590Z
2022-02-02T21:36:58.513Z
2022-02-02T21:36:58.513Z
darth pixel
<p>Does anyone know of an accurate method for building a dwg file from a scan of a scaled drawing or plan. The dwg files will also be referenced for or made into 3d models so pulling the information straight into a modelling software would work too if possible.</p>

CC BY-SA 4.0
2022-02-01T22:37:31.903Z
I’m voting to close this question because it doesn't show relevancy to 3D printing
Trish
<3d-models><3d-design><software>
What is needed to create dwg from drawing?
user4043
# What is needed to create dwg from drawing?

(Asked by: username_0 on 2016-08-30)

Does anyone know of an accurate method for building a dwg file from a scan of a scaled drawing or plan. The dwg files will also be referenced for or made into 3d models so pulling the information straight into a modelling software would work too if possible.

**Tags:** 3d-models, 3d-design, software

> **Comments:**
> **username_1**: I’m voting to close this question because it doesn't show relevancy to 3D printing  

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## 1 answers

### Answer by username_2 on 2016-08-30. Score: 3

It's not an easy task and according to my knowledge there is no way to do it fully automatically (I might be wrong of course).

You have options as follows:

Read scans and ...

1. recreate it manually in CAD application
2. recreate it using a [digitizer](https://en.wikipedia.org/wiki/Graphics_tablet) (in the old days they had pucks - a kind of magnifier with crosslines to digitize from printouts/blueprints)
3. create 3D object omitting 2D drawings
4. convert bitmap to vectors in 2D app
5. use a scanning service [like this](http://www.amsimaging.com/blueprint-scanning) (would be expensive)

Depending on complexity of your schemas, the easiest way, would be option 1 or 3. Option 4 is very doubtful (even if it's the most automatic way, it won't create useful data).

The most of CAD apps have an option to import bitmaps and then work on such a "background". For example, in AutoCAD use command [Imageattach](https://knowledge.autodesk.com/support/autocad/learn-explore/caas/beta/CloudHelp/cloudhelp/2015/ENU/AutoCAD-Core/files/GUID-0F75E36F-6138-424C-9510-5847CE1D8852-htm.html)


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