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

--------------------------------------------DOOR TRIM (DOG HOUSE FEATURES) --------------------------------------------

•  TREE STRUCTURE

      

• SKETCHES

 

1. Dog House Design

• Attach  a point on the surface of the solid door trim 
• Select the plane normal to curve and the curve will be main tooling axis
• Use position sketch and draw the 3 side wall sketch by the line of the dog house 24x24 
• Sweep the wall at 1.5 Deg with a height of approx. 23 mm 
• Offset the plane 20 mm for making the dog house roof
• extrude the surface with the help of a line which is positioned on the offset plane
• Join all 4 faces (side wall and ceiling) and thicken them to 2.5 mm outward
• Use the draft of 1.5 deg for the outside of the dog house wall from part modelling with respect to the neutral surface and central tooling axis
• Use the draft of 0.5 deg for the inside of the dog house wall from part modelling with respect to the neutral surface and Side core tooling axis
• Apply the fillet of 1 mm inside of the dog house and outside fillet = wall thickness + inside fillet
• For making an undercuts-like structure extract the inside draft surface and offset 40% of the central wall thickness to the outward direction
• Offset the Base sketch extruded surface height of 3 - 6 mm
• Trim both above offset surface and thicken approx. 1.5 mm 
• Use the Boolean operation and make the undercut of the dog house
• Now copy the dog house and paste it with the link to the destination place points
• Now you can transform the copy of the dog house into different positions.
• Use union trim and combine dog house and door trim.

3. DETAIL REPORT ON DRAFT ANALYSIS RESULT AND IMAGES 

CLASS A SURFACE DRAFT ANALYSIS ON 3-DEGREE DRAFT

NOTE: THERE IS  CLASS A SURFACE FAULT SO WE ARE UNABLE TO PREDICT THE EXACT TOOLING DIRECTION AND DRAFT ANALYSIS.

• SCREENSHOT OF SOLID DOOR TRIM IN VARIOUS ORIENTATIONS

FRONT VIEW

SIDE VIEW

TOP VIEW

ISOMETRIC VIEW

• REPORT  

1. TOOLING AXIS CREATION

 In the Door trim, we have used the point and direction method to create the Main tooling direction and for the Dog House tooling direction, we used Side core Tooling Axis.

• Extract flat surface from class A surface.
• create the midpoint (origin) on the extracted face.
• select the line and normal to surface then a line will create which will act as the main tooling direction.
• Similarly, select the line and point & direction method in which choose point is the same as the main tooling axis origin then give the direction of the X-Axis then a line will create which will act as the side core tooling direction for Dog House.

 

2. Draft analysis

• Select the Feature Draft Analysis
• Click the part and define the tooling Direction which is the main core and side core tooling axis one by one.
• From the main core tooling axis, Green Side is showing that the part will be made according to the Draft Angle which is 2.9 degrees and there will be no erosion between the Tool and Plastic parts but due to class A surface defect some undercut will appear.
• from the above main tooling axis, we can perform draft analysis by 1.45 degrees because the outer surface of the dog house is drafted by 1.5 degrees per side of the wall.
• From the side core tooling axis, Green Side is showing that the part will be made according to the Draft Angle which is 0.45 degrees and there will be no erosion between the Tool and Plastic parts.
• The blue side is showing a negative Draft angle (interference) or it is impossible to draw the part according to the draft angle.

DRAFT ANALYSIS ON SOLID DOOR TRIM DESIGN WITH RESPECT TO THE MAIN CORE TOOLING AXIS

DRAFT ANALYSIS ON DOG HOUSE DESIGN WITH RESPECT TO THE MAIN CORE TOOLING AXIS

DRAFT ANALYSIS ON DOG HOUSE DESIGN WITH RESPECT TO THE SIDE CORE TOOLING AXIS