How to draw the involute teeth profile of spur gear by approximate construction method

How to draw the involute teeth profile of spur gear by approximate construction method.

[@parastools]

Sir thank you very much for this video i really appreciate your work i also want to request if you can upload video of drawing internal toothed ring moduel gear of 20degree presser angle

[@sunilsaxena620]

Great video, can you also show same for helical gear. Your both videos apx way and pressure angle is for driver gear, plz show for driven/pinion gear also...

[@dudeamul]

is this method useful for generation involuter profile for broaching tools & hobbing tools