How do I project a sketch onto a non-cylindrical face?

_Carbyne_

Since wrap only works with cylindrical faces, I'm trying to use projected curves to project a sketch onto the spoiler, but I'm getting the error message "Projected curve did not regenerate properly: Could not create a wire part from curves."

Link to the document: https://cad.onshape.com/documents/767e6dddd7431722ccff3f35/w/0036415a1a3dc6668682f149/e/b8f3c72863a17aa94b66d962?renderMode=0&uiState=641bab96ea96e236f0f44a1c

S1mon

There's something wrong with your "Hoonigan" sketch. There are doubles of all the lines. There's also a microscopic line in the G (circled in red below).

I don't know where you imported this from, but it would be better to get the curves as splines, not a series of little line segments.

_Carbyne_

I got the DXF file by converting PNG to DXF using Inkscape (I followed this tutorial: https://www.youtube.com/watch?v=eBEN0Q0Pmlk) Is there a better way to convert images to DXF files to get splines and a higher resolution?

The double lines must have been because I did not delete the duplicate image, as image trace produces a new copy right on top of the original image.