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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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…
Onshape
onshape.com
Professional parametric CAD that runs entirely in a web browser, with mobile apps for viewing and editing on the go. Files live in the cloud, so there's nothing to install and real-time collaboration is built in. The fr…
Akritio
akritio.com
Browser tool from Navi3D that turns any 3D model into a print-ready casting mold. Free daily exports, with a Pro plan for unlimited use.