Week 8 - Challenge 3 - Switch Bezel Design

SWITCH BEZEL CONSTRUCTION

Creation of Tooling axis :

1) Initially start with creating a point on the surface and then axis system is created.

2) Now along the XY plane, intersection is created and then two lines are drawn using the two slopes.

3) A bisecting line is created using them. Considering this as the tooling direction and draft analysis is performed.

4) But all the faces are not cleared using that as the tool direction. Now rotate the created line along the x axis such that the rotated line can be used as the new tooling direction.

5) The line is rotated up to 3 degrees to make it clear all the faces. Now we can see all the faces are cleared by the tooling direction.

Class B, Class C surface and closebody creation :

1) Initially to simplify the class A surface, using UNTRIM option each surface is broken down to simple surfaces.

2)Now each of the surface is joined eliminating the edge fillets. So that offset surface can be performed without any errors. Extrapolate option is used to extend each surface and then trimmed together.

3) Finally the joined surface is offset to 2.5mm.Then edge fillet is applied on the offset surfaces by measuring the values from CLASS A surface.

4) By using the SWEEP command the outer profile is selected , then by using tooling direction as the draft direction the CLASS C surface is created.Also a draft angle of 3 degrees is given to clear the faces.

5) Now the offset surface, class c and the class A surface is trimmed together to form a closed body.

6) Then closebody option is used to form a solid body.

Draft analysis procedure:

1) Draft analysis is performed on the final solid body by choosing the compass and placing on the tooling axis we created.

2) Adjust the values on the colorscale to match your draft requirements.

3) Click the quick analysis tool and select your part so that the results are displayed. Check if all the faces are clearing the tool direction by identifying colors.

4) We can also use the analysis under running point to know the exact draft value on the surface by simply moving the cursor on the interested area.

5) As we can see all the surface when viewed from top/ tooling direction has only green and red color. The green and red color indicate a draft value between 0 to 3 degrees. So our surfaces satisfy the draft requirement and hence it is toolable.

TREE STRUCTURE :