rakker16mm

01-07-2008, 12:46 AM

It would be very handy to know how to generate a true involute curve in modeler. They are especially handy for making accurate gear shapes, and besides that they are really just a very beautiful curve. They are useful for animation as well.

Here is a nice example of one (http://www.abbeyclock.com/gearing4.html#CHART).

The Involute Curve (http://www.cadquest.com/books/pdf/gears.pdf)

I thought I might be able to generate them using "Create>Curves>Plot 1D" but the interface and I are not meshing properly ( sorry ). So far all the documentation I can find on this tool are these to paragraphs...

The Plot 1D Tool

The Plot1D tool, which is located in Create > Curves: Plot1D, generates either a curve consisting of two-point Polygons or a spline curve. The curve is generated along the X axis, and its height is in the Z axis. Get your math cap on for this tool.

The height is determined by the value of the expression in the Equation field at each x. In the fields Min, Max, and Division, enter the x value for the start of the curve, the x value for the end of the curve, and the number of divisions of the curve.

Here is a nice example of one (http://www.abbeyclock.com/gearing4.html#CHART).

The Involute Curve (http://www.cadquest.com/books/pdf/gears.pdf)

I thought I might be able to generate them using "Create>Curves>Plot 1D" but the interface and I are not meshing properly ( sorry ). So far all the documentation I can find on this tool are these to paragraphs...

The Plot 1D Tool

The Plot1D tool, which is located in Create > Curves: Plot1D, generates either a curve consisting of two-point Polygons or a spline curve. The curve is generated along the X axis, and its height is in the Z axis. Get your math cap on for this tool.

The height is determined by the value of the expression in the Equation field at each x. In the fields Min, Max, and Division, enter the x value for the start of the curve, the x value for the end of the curve, and the number of divisions of the curve.