Freehand Sketch

I don't think you can use freehand sketch but you can import a freehand sketch as a sketch picture and use spline tools to trace over the sketch picture.

Do you have a tablet computer or Wacom tablet to work with?

I am thinking Mark Biasotti will know how well a Wacom or tablet works with SolidWorks.

https://forum.solidworks.com/people/1-4EQZK9

Cheers,

Anna

You can also use programs like paint to do the freehand sketch and then use Auto trace in Solidworks