A dividers is a handy tool for duplicating line lengths without measuring them. Position its points on the endpoints of the line, then move it to the part of the paper where you wish to draw the same length line. Press the points gently into the paper and connect the dots.
Drafting, Modeling and 3D Printing with Lydia Sloan Cline
Hand drafting for Interior Design, SketchUp, Autodesk 123D and MakerBot
