I see how to use the knife tool to draw shapes by clicking points along, say, an imported image in the background. But I want to know if there is a way to draw 2d shapes with precise angles (90 degree, 30 degree, etc), curves, and precise line lengths, to make closed shapes that one could then extrude into 3d.
There doesn't appear to be a way to do this with the knife tool (unless I'm missing knife settings somewhere), so perhaps there's an addon that'll do this.
Thanks!