1. Working with milling complex Milling right on gear and rack gear
Basic competency :
Milling right on gear and rack gear

2. Learn activity IV Milling right on gear and rack gear
1) Able to make the calculation and making of right on gear and rack gear
2) Able to made right on gear and rack gear

3. move round the axis between two parallel
Kinds of gears
Right on gear
move round the axis between two parallel

4. Bevel gear
axis connecting the parallel
To retire to a corner of axis

5. Herringbone Gears
Verry high speed
Feeding the rough

6. Rack gear and pinion
the movement turn the movement into gear straight

7. Worm gear
reduce speed

8. Helix gear
Used on the side that have

9. Move power on the intersection axis
Conis gear
Move power on the intersection axis

10. Used at the position axis parallel
Inside gear
Used at the position axis parallel

11. Gear standard system m = modulus D = distance for diameter
Z = the number of teeth

12. JIS B 1701-1973 module standard table

13. NEN 1630 module standard table

14. DIN 780 module standard table

15. Diametral Pitch Dp = Dp = diametral pitch D” = distance for diameter
Z = the number of teeth

16. Circular pitch Dp = diametral pitch D = distance for diameter
Cp = circular pitch
Z = total tooth

17. Relationship Among Module System, Diametral Pitch And Circular Pitch's

18. Straight gear bodyworks
D = distance for diameter
Dk = tooth head diameter
Df = tooth foot diameter
Hk = tooth head high
Hf = tooth foot high
H = tooth high
m = tooth module
a = distance among axis
t = bow distance among teeth
b = tooth broad
K = tooth thick
Z = tooth total
n = gear rotation

19. Straight gear makings Steps : 1. Object preparation
2. Object installation
3. Installation and setting of milling cutter
4. Division with dividing head
5. Object cutting

20. Object preparation
Hollow gear blank

21. Object installation
Tail stock
Object
Dividing head 21

22. Cutter election

23. Cutter pin channel straight with pin spindle
Installation of milling cutter
Cutter pin channel straight with pin spindle

24. Dividing head investigation

25. DIVISION WITH DIVIDING HEAD
Direct division
Indirect division

26. Object cutting Cut first teeth with automatic feeding
Analyze profile accuracy and also measure accuracy
Cut on third teeth and further until all through

27. Rack gear milling
Rack gear picture

28. Rack gear milling Steps : Object preparation 2. Object installation
3. Installation and setting of milling cutter
4. Pitch's determination and cut depth
5. Object cutting

29. Object installation
dibbled on chuck
clamp directly on table

30. Cutter pin channel straight with pin spindel
Installation of milling cutter
Cutter pin channel straight with pin spindel

31. Cut depth determination
Module system
2,25 x module
Diametral pitch system

32. Rack object cutting Cut first teeth with automatic feeding
Analyze profile accuracy and also measure accuracy
Cut on third teeth and further until all through

33. BEVEL GEAR (VIDEO)

34. RESUME Straight gear and rack gear makings Steps :
1. Object preparation
2. Object installation
3. Installation and setting of milling cutter
4. Division with dividing head
5. Object cutting

35. Task Do observation at Workshop or industry!
Explain various gear and purpose kind its on macnine’s equipments!

36. Formative test 1. Explain kinds of gear and the functions!
2. What the steps that shall be done in makings
straight gear and rack !
3. Will make straight gear with module 4 and total teeth 25.
Determine main size that gear !

37. DAFTAR PUSTAKA
Tim Fakultas Teknik Universitas Negeri Yogyakarta (2004) Modul Mengeset Mesin dan Program CNC (dasar), Yogyakarta:Bagian Proyek Pengembangan Kurikulum.
Windarto (2008) Teknik Pemesinan Jilid 2, Memahami Mesin CNC Dasar, Jakarta:Direktorat Pembina Sekolah Kejuruan.