Up for a challenge

Yang Ji

23 Apr, 2015 11:50 PM

Here is how I did it.

1. Step 1:

   Sketch on front plane
   A few dimensions
   

   

2. Step 2:

   Revolve 180 reversed direction.
   180 revolution will become very handy later on.
   

   

3. Step 3:

   Load toolbox
   from menu
   Toolbox -> Configure
   For how to customize thread, refer to this: https://www.youtube.com/watch?v=DKwnvsM8-xI

   Under Sizes use numbers in the the last row
   

   

4. Step 4:

   Under thread data use numbers in the the last row
   

   

5. Step 5:

   Save and open hole wizard
   Choose these settings
   

   

6. Step 6:

   You should get this.
   I tapped the hole so early because there are things with dimensions to the tapped point.
   

   

7. Step 7:

   Sketch on right plane
   All dimensions are from PDF file except Ø0.4670 is measured in CorolDRAW. Refer to my previous comment for reasons.
   

   

8. Step 8:

   New sketch on right plane
   Convert the line and extend it to pass the revolved body
   

   

9. Step 9:

   Use this one line sketch to extrude cut
   

   

10. Step 10:

    Sketch on front plane
    Tangent relationship is not necessary at top but it can give me a fully defined sketch.
    I recommend finish this step before you revolve the upper cylinders. Otherwise this cut intersect with them and you need to create a reference plane and do extrude cut up to surface, which is more work.
    The small circle in the middle can be replaced with just a point. It is useful later.
    

    

11. Step 11:

    Now you can revolve and merge and leave the center hollow.
    

    

12. Step 12:

    Revolve cut the lower part
    

    

13. Step 13:

    Sketch on this flat surface and the center of this circle should align with the partial circle in the sketch for revolving. That is why I put dimensions in page 2 into that sketch.
    

    

14. Step 14:

    Because I revolve 180 degrees, now you can create a reference plane as pictured.
    

    

15. Step 15:

    Sketch on this new plane
    Convert the edge and use R0.343 from page 5
    Offset 0.284 from page 3
    0.1788056 from page 3 is not used anywhere. 0.27 is hard to tell from what to what.
    

    

16. Step 16:

    Sketch on top face of upper cylinder
    dimensions in page 4
    

    

17. Step 17:

    Hole wizard as pictured
    Position snaps to points in previous sketch
    

    

18. Step 18:

    Revolve cut 180 use temporary axis
    

    

19. Step 19:

    Pattern as pictured
    

    

20. Step 20:

    Now mirror body and merge
    

    

21. Step 21:

    Use the small circle in the sketch here as reference and tap a hole
    

    

22. Step 22:

    Tap another hole here snap to the center of the bigger semi circle
    

    

23. Step 23:

    Chamfer
    

    

24. Step 24:

    Finished feature tree. I do not think I can make it any shorter at the moment.
    I hope this helps.