Macro TimingGear

Description
This macro creates GT2/GT3/GT5 timing gears to be used with timing belts.

The purpose of timing gears is to allow the camshaft and crankshaft to turn the timing chain. The crankshaft turns to move pistons up and down inside the cylinders. The camshaft turns to allow intake and exhaust valves on the cylinders to open and close. These components are important for proper engine timing.

Timing gears are connected to a timing belt or timing chain.

Usage

 * 1) Start the macro in a FreeCAD document.
 * 2) In the dialog that opens choose the parameters for the GTx timing gear:
 * 3) * Select if the curve should be 2 dimensional:, or 3 dimensional:.
 * 4) * Specify the number of iterations . Attention! Increasing the number of iterations will also increase the computation time.
 * 5) * Specify the length of the wire segment:.
 * 6) Click  to create the wire or  to exit the macro.



Script
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Macro_HilbertCurve.FCMacro