How to convert .stl file to solid body in Solidworks

I have a cover from a motorcycle in stl file and i need to make some modifications in the cover, but solidworks dont allow me to import the file as solid body because have to many faces. Anyone can help me in this problem. I will try to upload the file in my personal area. Thanks for the help

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11 Answers

Launch the SolidWorks project you wish to use to import an .STL file. Click the "File" menu and choose "Open."

Click "(*.stl)" from the "Files of type" drop-down menu, then click "Options." Three main options will display in the "Options" dialog box.
Click "Graphics Body" if you wish to import the STL file as graphical data only. Click "OK" to confirm.

Click "Solid Body" if you wish to import the STL file as a solid body. Click "OK" to confirm.

Click "Surface Body" if you wish to import the STL file as surfaces. Click "OK" to confirm.

Click the STL file you wish to import and click "Open." Allow for the import process to finish.

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Done in over one minute, with Polygonica, from MachineWorks UK.
I hope this
is want you wanted.

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I have nerver try to reverse in solidwork before. I usually do in catia as show in picture.

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There are a lot of method to model your file.
First of all , you should think that what method you will use to model this part.
For me I select loft-method to model main body of part.
Then, I need curve section to loft, so I have to extract curve from cloud point.
I start with import cloud point or stl file into catia by using digitized shape editor.
Then I switch to Quick surface Reconstruction module and use plannar sections function to extract planar curve. I convert planar curve to be a curve by using curve from scan function. Now I get a curve for be a reference to sketch. Using sketch module to create skecth for loft. That's all.
Good Luck.

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Disan: Will Polygonica be able to convert this file into a solid?

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Cristoffer, sorry for the late reply but only just stumbled upon this.

Yes, Polygonica can convert your file into a solid no problem, takes around 40 seconds.

Let me know if you have any questions.

- David

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Hi Arif

Polygonica is an SDK, not an end-user tool. You can find more information at

Also it should be noted that Polygonica only works on meshes, not on brep solid models. So it can close and repair mesh solids but not convert them into SolidWorks parametric models.


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Hi Disan

Can Polygonica convert this foot model into solid body?

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I had the same problem some of you guys are having I hade no solid works so I couldn't convert STL to sold works or vice versa

Saved me a lot of time to I just paid this guy on fiverr to do it for me Check out the link below

I really hope I helped some of you guys

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