I want to create parts for a 3D printer using OpenSCAD. Having some STL files from the vendor, but nothing else (no technical drawing, no CAD files).
Does anybody knows a free tool, that allows me to
- measure distances between 2 selected vertices,
- measure distances between a selected vertex and a plane defined by 3 vertices,
- measure the radio of a circle defined by 3 selected vertices?
I very much like the way Blender allows to work with meshes, especially select vertices or planes, but unfortunately haven't found a way to measure with Blender.