# Converted solid always going back to mesh

**URL:** <https://discourse.shapr3d.com/t/converted-solid-always-going-back-to-mesh/32500>\
**Category:** Modeling Questions\
**Created:** [June 18, 2024, 10:28pm UTC](https://discourse.shapr3d.com/t/converted-solid-always-going-back-to-mesh/32500 "2024-06-18T22:28:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![smogpaster](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/smogpaster/32/27172_2.png) [@smogpaster](https://discourse.shapr3d.com/u/smogpaster)\
**Post date:** [June 18, 2024, 10:28pm UTC](https://discourse.shapr3d.com/t/converted-solid-always-going-back-to-mesh/32500/1 "2024-06-18T22:28:56Z")

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Hello dear forum community, I have a problem that’s driving me crazy. I extruded an SVG file in TinkerCAD and then imported it into Shapr3D to print it. When I open it in the Bambu Lab Slicer, it is much too large, but at least it can be printed. However, when I scale it down in the slicer, the solid body disappears, and there’s nothing left to print. The same thing happens when I change it in Shapr3D, such as changing the size. Why is this happening? And how can I turn this extruded SVG into a body that I can modify in any way and then print? I would be very grateful for any help or suggestions! 🙂

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [June 19, 2024, 2:11pm UTC](https://discourse.shapr3d.com/t/converted-solid-always-going-back-to-mesh/32500/2 "2024-06-19T14:11:40Z")

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Are you by chance using STL file format? It doesn’t include units data and so slicers use MM often import STLs in inches as gigantic. I forget the scale difference. I think it’s \>25 to one (the inverse of 0.0393701?).

I had this problem in the beginning using Shapr. I had to remember to change the project from inches to MM before exporting.

I no longer use STL, I use 3mf file for printing.

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**Author:** ![TheBum](https://avatars.discourse-cdn.com/v4/letter/t/eada6e/32.png) [@TheBum](https://discourse.shapr3d.com/u/TheBum)\
**Post date:** [June 20, 2024, 7:11pm UTC](https://discourse.shapr3d.com/t/converted-solid-always-going-back-to-mesh/32500/3 "2024-06-20T19:11:49Z")

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25.4 to one. 🙂

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**Author:** ![smogpaster](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/smogpaster/32/27172_2.png) [@smogpaster](https://discourse.shapr3d.com/u/smogpaster)\
**Post date:** [June 20, 2024, 9:51pm UTC](https://discourse.shapr3d.com/t/converted-solid-always-going-back-to-mesh/32500/4 "2024-06-20T21:51:04Z")

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Hi, thanks for your answer. I think this could be a problem. I now export files as \*.dxf and extrude them myself. No problems anymore 😉