the calculation is developed for geometrical designs of belt and chain transmissions with more sprocket wheels (max. 15). it solve the necessary length of the belt (chain) using known positions and diameters of sprocket wheels. application is developed in ms excel, is multi-language, supports imperial and metric units and support many 2d cad systems. (autocad, autocad lt, intellicad, turbocad...).

data doctor billing and inventory management software easily records and processes accounting transactions such as accounts payable, accounts receivable, payroll, and trial balance. it functions as an accounting information system. accounting tool for cost accounting, industry analysis, tools & reports, point of sale, fixed accounting research, property management.