If you are looking for a super easy way to generate SVG sketches -

3D Printing
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If you are looking for a super easy way to generate SVG sketches - perhaps to trace an image, photo, logo, etc - try GOOGLE DRAWINGS.
(the post linked here has a video and a description)
Not many people knew this (or cared) - but SVG is the graphics language behind Google Drawings - and the drawings in Google Slides - so it’s super simple to download the SVG and then import into 3D Modeling apps - since SVG is one of the few formats those apps import.

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Thanks for sharing : )
Super cool idea!
Will try it tomorrow morning.