DIY spur gear making for change gear part 2

Prepare the outside diameter of gear.

1. Preparing tool for turning the diameter
a. ISO 2 and ISO6 Toolbit
These tool for turning the diameter and turning face and so for  make chamfer

b. ISO 9 Toolbit
 These tool for turning internal diameter after drilling

c. Twist Drill
Twist drill to make hole of work piece

d. Mandrel

2 Turning
a. First turning the face of workpiece until it flat

b. then make hole with twist drill and enlarge by ISO 9 until diameter fit to the mandrel

c. turning the face to other side of workpiece until flat according to gear thickness size.

d. clamp the workpiece to the mandrel an turning outside diameter according to Addendum diameter size

beware if the chip is rolled over the work piece cleane it with chips hook don't clean with your hand or it can be fatal injury.

e. make chamfer to clean the sharp edges.

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