Cogbench

A pocket workbench for gears. Set a module and two tooth counts, and a real involute gear pair meshes live on screen. Ratio, centre distance and pitch diameters update as you drag. Undercut warnings appear the moment a pinion gets too small. Built for mechanical engineers, engineering students and makers who print, build and prototype. HOW IT WORKS Drag the Module, Pinion teeth and Gear teeth sliders and pick a pressure angle of 14.5, 20 or 25 degrees. The pair is drawn with true involute tooth profiles, not polygons, and keeps turning as you adjust it. Save a build to the logbook, share it as a parameter card, or open Flank View to study a single tooth. TOOLS ON THE BENCH - Mesh Lab: live animated spur pair with ratio, centre distance and pinion diameter - Undercut check: minimum tooth count for each pressure angle (32 / 17 / 12) - Flank View: base, pitch, addendum and dedendum circles…