Hi @Anonymous
If I am not wrong, I think you didn't create a closed path or did not all join the lines to make it a closed path while using the command "EXTRUDE" and that's why it resulted in a surface than a solid.
Try to make the shape of the blade a closed path and then extrude it to create a solid object which would make it look like solid when you switch to "shaded" visual style🙂
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ವಿನೋದ್ ಕೆ ಎಲ್( System Design Engineer)
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