How to program a ball with a diameter of 15MM? Drill a hole with a diameter of 5MM and a length of12.9 mm. The machine tool is GSK928TE and the material is plastic round bar.

First of all, is there a thread where the hole is drilled? I guess there is. Is it used as handball?

T 1 1 end-to-end, T22 right-angle 90-degree cutter

Clamp the threaded hole end of the lathe by 6-7mm with a round bar with a diameter of 16 and a length of 16. The end face of the lathe:

G00 XI50 Z200

T 1 1

M03 S600

G00 X 17 Z0

G0 1 X0 F30

G00 Z 1

X 150 Z200

T22

G00 Z 1

M00

Move the tailstock, drill a hole with a diameter of 5mm as needed, tap and return to the tailstock, and close the door.

Start periodically

G00 X 16

G7 1 X0 I6 K2 L2 F30

G0 1 Z0

G02 X 15 Z-7.5

G00 X 17

X 150 Z200

M30

Then turn the chuck to clamp a rod with M6 thread and screw on the ball thread to fix the other half arc of the lathe:

G00 X 150 Z200

T22

G00 X 16 Z 1

G7 1 X0 I6 K2 L2 F30

G0 1 Z0

G02 X 15 Z-7.5

G0 1 Z-8.5 F30

G00 X 17

X 150 Z200

M30