Modell and visualize a tape measure by Kyle Houchens

General introduction of the approach of this video.

Integrate backgroundpicture: CMD “picture”

Setting up Units, absolute tolerance, grid to draw precicely! (Milimeters: 0.1, Centimeter: 0.01)

Change object transparency of backgroundpicture in “object property” (F3)/Material + CMD “scale” object + rotate with Gumball + position out of the modeling area + lock layer “Image”

Draw 2d elevation with curve-tool, tap Alt after moving to make a copy

CMD “CurveBoolean”: making a gear and “Array” in “Polar-mode” (TRIM”)