Hallo friends, how are you
today? hopefully everyone in healthy condition. After yesterday i was share
matter of calculus-1 about integrals, and now i want to continue lesson about
tutorial auto cad 2007. last time i share tutorial auto cad 2007 about turorial autocad 2007 Complex Modeling (part-6), do you still remember this
lesson? i think all of you remember it. Actually in chemical engineering lesson
auto cad only exist on the first smester. but no problem if we learned. this
tutorial is the 7th. Oke brother and sisters understand well the following
tutorial!
TUTORIAL 7
Core/Cavity Mold
Learning Objectives
After completing this tutorial, you will be able to:
• Use the new 3D Modeling
tools in AutoCAD 2007 for freeform sculpting.
Required Competencies
Before starting this tutorial, you should have been able to:
• Use AutoCAD at an intermediate
to advanced level
• Stretch solid faces
The new 3D modeling tools in AutoCAD 2007 allow you to model complex
shapes that previously were not possible
to model in AutoCAD. This tutorial
assumes that the user is
completely familiar with creating precise
2D sketches of arcs, lines,
polylines, and splines in any location
as well as the 3D tools from previous releases.
Core/Cavity Mold
1. Open
the file named Toolbody.dwg. Union the two cylinders
to the car body.
Figure 1
2. Make new layers named Core and Cavity. Make the Core layer the active layer.
Select the Box command
and create a box from the center of one end of one of the cylinders to the diagonal
center of another cylinder
end. Make the height 75mm
going away from the car body.
Figure 2
3. Holding the Ctrl key select the end of the box and then select the handle in the middle of the face. Stretch the face tracking straight
back a distance of 100mm.
Figure 3
4. Turn
the parts around
and repeat the same procedure on the other end.
Figure 4
5. Union the base to the body.
Figure 5
6. Make the Cavity layer the active layer.
Create a Box from corner to diagonal
corner of the base and a height
of 125mm.
Figure 6A
7. Read this step carefully
before continuing. Turn the assembly over. Copy
the Core side in the same location
so that there are two core bodies. Then Subtract
one of the cores from the Cavity side. Turn off the visibility of the Core layer and the Cavity should look like Figure 7.
Figure 7
8. Turn
off the Cavity layer and turn the Core layer back on and make it
the active layer.
Figure 8
9. Minimize the Toolbody file and open the Tutorial
6 Toy Car file. Turn on the
Mounting Posts layer.
Figure 9
10. Extrude the four sketch wires with a taper of ‐3° and a
distance of 100mm.
Figure 10
11. Read this step carefully. Make a Copy of the car body in the same location.
Subtract the car body from the four posts in one operation.
Figure 11
12. Separate the upper portion of the posts from the lower portion.
Figure 12
13. Delete the upper portion of the posts and then Union the lower posts to the body.
Copy the Car Body to the clipboard with basepoint (0,0,0).
Save and close the
file.
Figure 13
14. Paste the car body into the Toolbody in the (0,0,0)
location. Save the file, if it
is going to crash the next operation is a
likely time.
Figure 14
15. Subtract the car body from the core. The subtract operation may take several minutes – and unfortunately on my machine it did not result in the proper geometry with the car body including the mounting
posts subtracted from the core.
Figure 15
16. Examine the results
carefully. We have removed the material from the core that would
be filled with plastic between
the two halves of the mold. (Tip: You should have noticed I changed some face colors as we went along – don’t
let the changes of
colors confuse you.)
Figure 15
Of course there is much more to mold design that what we have done here. We did not
consider shrinkage or other parts of the tool.
seperti saya butuh banyak latihan
ReplyDeleteThanks for your tips , very helpful , very detailed explanation ...
ReplyDelete