Drawing an Involute Curve is a tough one to draw. I will give you tips to draw easily. Involute is very important in Gear industry.

## I am explaining the steps.

**1. First draw a circle by given dimension of Diameter.**

**2. Make four part of that circle.**

**3. Draw a line from bottom point equal to 2Πr or DΠ.**

**4. Now make part of the line. Eight equal part will be ok but the more part the more clean Involute will appear.**

**5. As that line is parted 8 equal part it is now time to make circles eight part. 45 degree lines.**

**6. Now have to draw perpendicular lines from each circles parts. If we give numbers it will be easier.**

**7. Draw the perpendicular lines. Let you will draw from a, the length will be 1 to 8. And from b, the length will be 2 to 8 and so on.**

**8. After drawing all the perpendicular lines you will have to join some points. from 8 to perpendicular of a, perpendicular of a to perpendicular b and so on. and at last perpendicular g to point h.**

## Here is an example of Involute by an Involute To A Circle Of Diameter 50mm.

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