Check stress on parts and remove unnecessary material while keeping the part strong. Plans include free plans for individuals, paid plans for businesses and large companies, and even plans for use in education.
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cookiecad.com
Browser-based designer for custom cookie cutters and stamps: draw, type text or upload an image and it generates a printable cutter. It also runs a marketplace where you can buy ready-made designs or printed cutters.
SelfCAD
selfcad.com
Browser-based 3D modeling that combines sketching, sculpting and mesh tools with a built-in slicer, aimed at beginners, hobbyists and schools. A free plan covers basic use; advanced tools need a subscription.
Shapr3D
shapr.com
Professional CAD designed around touch and Apple Pencil, with full versions for Windows and Mac. It's one of the most approachable precise-modeling tools: sketch, push and pull, then export STEP or STL. A free plan allo…