# Wrong units system when import DWG

**URL:** https://discourse.shapr3d.com/t/wrong-units-system-when-import-dwg/6303
**Category:** Modeling Questions
**Created:** [December 22, 2019, 9:42pm UTC](https://discourse.shapr3d.com/t/wrong-units-system-when-import-dwg/6303 "2019-12-22T21:42:07Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![Feli](https://avatars.discourse-cdn.com/v4/letter/f/6bbea6/32.png) [@Feli](https://discourse.shapr3d.com/u/Feli)
#### Post date: [December 22, 2019, 9:42pm UTC](https://discourse.shapr3d.com/t/wrong-units-system-when-import-dwg/6303/1 "2019-12-22T21:42:07Z")

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When import a DWG / DXF file made in mm (decimal units) in Shapr3D they appear in inches. So, 1 mm in my DWG / DXF file is 1 inch in S3D. Could you please help me?

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### Author: ![Victor\_Shapr3D](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/victor_shapr3d/32/3502_2.png) [@Victor\_Shapr3D](https://discourse.shapr3d.com/u/Victor_Shapr3D)
#### Post date: [December 23, 2019, 9:59am UTC](https://discourse.shapr3d.com/t/wrong-units-system-when-import-dwg/6303/2 "2019-12-23T09:59:51Z")

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Hi, Feli, please set the unit in the app to be MM before importing the DWG/DXF file.

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### Author: ![Feli](https://avatars.discourse-cdn.com/v4/letter/f/6bbea6/32.png) [@Feli](https://discourse.shapr3d.com/u/Feli)
#### Post date: [December 23, 2019, 11:57am UTC](https://discourse.shapr3d.com/t/wrong-units-system-when-import-dwg/6303/3 "2019-12-23T11:57:33Z")

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Hi Victor, the app is preset to mm, but when I import a DWG, a line of 3 mm in autocad became in a 76,2 mm in S3D. So, the app is reading the unit 3 MM as 3 inches, then show 76,2 “MM” as the measurement.

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### Author: ![Feli](https://avatars.discourse-cdn.com/v4/letter/f/6bbea6/32.png) [@Feli](https://discourse.shapr3d.com/u/Feli)
#### Post date: [December 23, 2019, 12:03pm UTC](https://discourse.shapr3d.com/t/wrong-units-system-when-import-dwg/6303/4 "2019-12-23T12:03:05Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/9/97ab928e08d0d3d79c6da3bfb5165edaad35651d.jpeg) ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/a/a204588368a237dc5fdfef0ad6a2efd5187d1a04.jpeg)

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### Author: ![Feli](https://avatars.discourse-cdn.com/v4/letter/f/6bbea6/32.png) [@Feli](https://discourse.shapr3d.com/u/Feli)
#### Post date: [December 23, 2019, 12:19pm UTC](https://discourse.shapr3d.com/t/wrong-units-system-when-import-dwg/6303/5 "2019-12-23T12:19:56Z")

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Hi Victor, sorry, I just resolved the issue, but anyway I’m sending the info for this forum. As seen in the next image, the units in de AutoCAD dialog box where set in inches as preset to input unit system. Thank you very much!

 ![Captura de pantalla 2019-12-23 a la(s) 09.12.03](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/f/f0e3a45947f775c5b6e5bae60a91af1425ebfb6d.png)

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### Author: ![Victor\_Shapr3D](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/victor_shapr3d/32/3502_2.png) [@Victor\_Shapr3D](https://discourse.shapr3d.com/u/Victor_Shapr3D)
#### Post date: [December 23, 2019, 3:21pm UTC](https://discourse.shapr3d.com/t/wrong-units-system-when-import-dwg/6303/6 "2019-12-23T15:21:45Z")

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Hi Feli, okay I see and it’s great to know that the issue is resolved 🙂

Happy holidays!