Gumroad – Construction Lines – Accurate Cad Modelling Add-On v0.9.2 for Blender

Construction Lines is a tool for accurate CAD style modelling. Build snappable guide points and edges, draw lines and primitive shapes in place, automatically create faces in closed geometry and precisely move object geometry around a scene.

Guide edges and points allow for a construction workflow where guides are set and models are then constructed within these guides. The guides won't interfere with model geometry and can be toggled off and on when required. Guides edges will disappear when working outside of Construction Lines and neither Guide Edges nor Guide Points will be rendered.

Construction Lines allows for rectangles, circles, and arcs to be drawn in place from precise snap points on existing geometry or guides. These can be drawn from anywhere on a 3D model without the need for Blender's 3D cursor to define an Add location.

Construction Lines works seamlessly between Object and Edit modes in Blender.

Full Documentation and Installation Instructions here

If you come from software packages such as SketchUp this is a perfect way to get started with Blender