Week 9 - Attachment Feature Creation - Challenge 2

create a dog house for the plastic part.

The function of the dog house is to elevate the screw boss or any other part to touch the datum surfaces. In some cases, the fixing part is not touched by the plastic part to tighten, so a dog house is used to resolve this problem.

The design rules for creating the dog house is :

The intersection where the main part and dog house meets should have the 40% of the thickness to the main part and the thickness should be 3 to 6 mm.

The thickness value at the intersection is 40% of 2.5 mm.

Which is 1mm, and after applying the draft value the thickness at one side is 1mm and on another side is 0.77 mm.

The dog house design satisfies the design rules,

And above the dog house, the other screw boss is designed to touch the datum face of the opposite component.

Now creating a tooling axis for the dog house.

90 degrees to the main tooling axis is the side core tooling axis.

After finishing the product, apply the draft analysis to see if there are any negative errors.

• 
• 
• 
• 
• 
• 
• 
•