I'm looking for a graphical interpretation the the Base Tangent Calculation used for involute gears. Can this method also be used for odd numbered sprockets in a belt drive?
DIN 3960 Art 2.7.2 and beyond. Toothed belt pulleys are usually "topped" by the hob; i.e. the major diameter is machined by the hob. Purveyors of such systems do not provide tooth geometry to facilitate such measurements. It is usually sufficient to verify the outeside/major diameter.