Anauto LISP programming language embedded within the AutoCAD design packagewas. Make a circle with 149.70 (Root diameter) and extrude it for 50 mm (Width). In this research, a computer-aided drawing system of spur gear was developed. Root diameter is larger than base diameter (see table):ġ. There are some changes in modeling the two cases. The root diameter can be larger than the base diameter or the base diameter may be larger than root diameter. You can download the gear drawings from the Downloads-Cad page. To model the gear using gear formulas read here. Lets see how to model the gear using the data given in the table (see first image). The job of the Cad modeler will be to create the gear model using these values. This data is used to manufacture the gear. In this case, a table containing all the parameters is placed in the gear drawing. are derived by standard set of gear formulas using these values.īut sometimes the manufacturer may have changed some of the values of a gear pair to satisfy his own requirement. Normally the following parameters are enough to manufacture a spur gear.Īll other necessary parameters like pitch circle dia, root dia, base circle diameter etc. This topic explains how to model a spur gear in Pro engineer and Creo without gear relations except for the involute curve.
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May 2023
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