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I am sure this has been discussed quite a few times, but I found a tutorial recently doing the exact same thing as I did, but in my case my logo is messing up!

Here is the link to the workflow: https://www.youtube.com/watch?v=mihkAGfnrWA

This is what it looks like after adding the solidify modifier: enter image description here

I already recalced the normals of my spline, but besides that it messes up my spline shape, it had no effect.

Any suggestions on how to fix it?

SVG FILE

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This has been answered before here Extrude and bevel an imported svg curve

It's most likely dirty geometry and duplicates/overlapping segments on curve export. Before exporting from Illustrator or whatever vector drafting software you are using turn off any effects, filters, or outlines that may add additional geometry to the curve.

After importing enter edit mode and check for overlapping vertex or duplicated geometry and remove it.

Edit:

Although upon inspecting your SVG file in Inkscape it does show incomplete (the "S" part seems to be inverted or missing some nodes), I just tried importing it into Blender successfully with no problems.

GTS Logo

You mentioned using the solidify modifier, so I'm assuming you converted it to mesh, which may be one of the problems. Try leaving it as a curve and use the builtin bezier tools like extrusion and beveling to achieve the volume and shape desired. Also your curve seems to be very small, and scaled down. Try scaling it up considerably (in object mode by maybe a factor of 10 000) and afterwards press Ctrl + A Apply > Scale

Then enter edit mode, select all vertex and set their radius to 1 (on the Toolshelf>Tools>Curve Tools> Set Curve Radius button. You can then use the Extrude and bevel modification under the Properties Window > Object Data tab > Geometry

If you ultimately do need to convert your logo to mesh for whatever reason, before you do, go over all the straight (linear, non curved) segments of your logo and turn both their handles to vector by pressing V > Vector.

Illustrator seems to export linear segments in a non standard way with one of the curve handles overlapping its origin vertex, which results in lots of overlapping mesh geometry when converting to mesh, which i turn is what is causing the artifacts with the solidify modifier.

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  • $\begingroup$ I don't have duplicate geometry or any overlapping vertices actaully. I tried selecting connected vertices with CTRL + L. After that i pressed H to hide them. No more duplicate vertices were left. I will add my svg to the question so you can check for any other problems in here $\endgroup$ – Marten Zander Feb 27 '16 at 21:15
  • $\begingroup$ I think your problem is converting to mesh, try using the original bezier curve object, and cleaning up its coinciding handles before converting to mesh. Original answer updated with more info. $\endgroup$ – Duarte Farrajota Ramos Feb 27 '16 at 22:57

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