# Tutorial how to make engine part 10

more detailed tutorial -- suite

1. ### Step 1:

use extrude command

2. ### Step 2:

select shown areas

3. ### Step 3:

change the direction with using this button

4. ### Step 4:

use offset option

5. ### Step 5:

change the offset direction and enter shown value

6. ### Step 6:

finally enter this value and confirm that

8. ### Step 8:

open a sketch on this surface

9. ### Step 9:

draw two concentric circles

10. ### Step 10:

use cut extrude command like shown.

11. ### Step 11:

your body should be like this

12. ### Step 12:

now open a sketch on this surface

13. ### Step 13:

draw a concentric circle

14. ### Step 14:

normal to selected plane

15. ### Step 15:

draw a big circle

16. ### Step 16:

now we will use this circle option. please click on it

17. ### Step 17:

firstly click on this circle

18. ### Step 18:

secondly clik on this circle and complate your perimeter circle. If you can not, please try again. you will see it is not too hard

19. ### Step 19:

enter the shown dimension

20. ### Step 20:

draw a centerline

21. ### Step 21:

use trim command

22. ### Step 22:

use mirror command and select shown sketch

23. ### Step 23:

then select the centerline and confirm that

24. ### Step 24:

use trim command again

25. ### Step 25:

draw a centerline .

26. ### Step 26:

use mirror command and select the sketch

27. ### Step 27:

select the centerline that we created just now

28. ### Step 28:

draw one more centerline

29. ### Step 29:

use mirror command again. select the shown lines

30. ### Step 30:

select the shown centerline and confirm that

31. ### Step 31:

now use convert entities command and select the shown edges

32. ### Step 32:

select the other hole edges and confirm that. sketch finished.

33. ### Step 33:

extrude it by 60mm

34. ### Step 34:

use linear pattern command and enter shown values

35. ### Step 35:

open a sketch on the right plane and draw an axis for linear pattern direction

36. ### Step 36:

click on solid bodies and select all bodies

37. ### Step 37:

right click and select combine option

confirm that

39. ### Step 39:

open a sketc on the shown surface

40. ### Step 40:

draw three circles

41. ### Step 41:

draw a horizontal axis

42. ### Step 42:

use linear pattern command

43. ### Step 43:

use trim command for shown edges

44. ### Step 44:

your sketch have to be like this

45. ### Step 45:

make same things for the others

46. ### Step 46:

select all the inside of the cylinders

47. ### Step 47:

then select this area

48. ### Step 48:

cut the body by 70 mm