Tutorial: How to make engine part 32

30 Aug, 2012 10:46 PM

CYLINDER HEADS

Step 1:

open a sketch on the shown surface
Step 2:

draw two circles
Step 3:

add shown line. it must be tangent with the circle that on the left and it must be coincident with the on the right circles top point.
Step 4:

add this line
Step 5:

add shown lines like before ones
Step 6:

use trim command
Step 7:

use skecth fillet command
Step 8:

add two circles
Step 9:

extrude it by 2 mm
Step 10:

we will make same things for this side. open a sketch and draw two 18mm radiused circles
Step 11:

insert these lines
Step 12:

use trim command..
Step 13:

use sketch fillet command then draw two circle like before.
Step 14:

extrude it by 2mm
Step 15:

now we will use cut-loft command. be sure that these sketches are shown
Step 16:

open cut-loft command and select the smaller circles for profiles
Step 17:

select the centerline
Step 18:

use cut_loft command on the other side.
Step 19:

make the guide lines parallel with the each other. if you don't do that, your cut-loft shapes will be irregular
Step 20:

select the centerline and confirm that
Step 21:

use right plane and mirror the cut-lofts
Step 22:

open a sketch on the shown face
Step 23:

draw two circles
Step 24:

add shown lines
Step 25:

use trim command
Step 26:

use cut-extrude command with shown values
Step 27:

make same things for the other side. you should use convert entities command and select shown edges
Step 28:

cut the body like shown

next: http://grabcad.com/questions/tutorial-how-to-make-engine-part-33