Week 10 - Challenge 2- Attachment Feature Creation (Dog House)

Steps to create the Model:

1. Create a point at (0,0,0) & a dummy tooling axis as shown in fig with yellow line. Use draft analysis to check the coreectness of tooling axis, if the surface are above or equal to 3deg draft then proceed further.
2. Offset all planar surfaces opp. to Class-A. Extrapolate & Trim them one by one and combine them as one. Give necessary fillet at all corners. You can get values of fillet by extracting fillets of Class-A , untrimming it & using measure to get value of fillet. Don't forget to add/subtract material thickness as required.
3. Create boundary of Class-A. The C-Surfaces which is parallel to tooling axis use sweep as draft to create C-Surface , select tooling axis as draft direction. For other faces use sweep perpendicular to surface.
4. Extrapolate & trim the C-Surfaces , trim Class-A with Class-C Surface. Finally extrapolate Class-B Surface & trim them to get close volume.
5. Use close surface command to get solid body. Use draft analysis to check the final result
6. Create a point on Class-B side near by the loaction of dog house & Create a tooling direction side core for clearing the inner face of dog house. Also, Create a plane using the point and draw the sketch for dog house.
7. Surface extrude the dog house with draft 1.5deg. Thicken the component.
8. Offset the B-Surface 4.5mm above & offset the inner dog house surface 1mm in outward dirction. Trim them to create surface.
9. Use spit command to remove the material under offset surface from dog house. Give atleast 0.5 deg draft in inner surface along tooling direction.
10. Now, union trim it with main body. Give necessary fillet in all direction.

Design Consideration for Dog House:

The thickness at intersction to main body should not cross above 40% fo wall thickness.

The thinner section height should be between 3-6 mm.

Atleast 1.5 deg draft should be given to walls for clearing.

Minimum width =12 mm