Week 9 - Attachment Feature Creation - Challenge 2

AIM:

Create the boss and Dog House for the Centre console coin holder considering the design rules mentioned in the video.

General Guidelines for Bosses:

• Draft - 0.5 degrees on walls of boss
• Thickness - Typically 40%* of the nominal wall at the base.
• Height to Diameter Ratio - 3:1
• Radii - 0.25mm maximum radii.

"C" is where the doghouse contacts the backside of the surface

• Doghouse wall thickness at the intersection of the part wall ( C ) should be 40% or less than the main wall stock ( T ).

• Height of ( B ) should be between 3.0 – 6.0 mm

PROCEDURE :

The inner circle diameter is 5.2 mm and outer circle diameter as per design criteria.Thickness of Screw boss should not be higher than the 40% of the bass.

Thickness of Coin Holder -2.5 mm

Diameter of outer circle is -7.2mm

As per the given parameters the draft angle and fillets are provided.

Copied this screw boss and paste it seperately then translate it on suitable coordinate and assembe to the main body.

DOG HOUSE CREATION :

• First of all i deactivated the screw boss
• Extract the Base of Class A surface and offset it on 2.5mm nad made a point.
• Then creat a rectangular sketch (one end made as construction)
• After that thicken it by 2mm.
• The draft angle of the inner side of the dog house is 0.5 degree.
• Edge fillet on the inner side of the dog house is given a nominal diameter of 1mm.
• The height of the dog house is given as 4mm whereas given design parameters it was indicated between 3-6 mm.
• To achieve the C value in the Dog house as mentioned in the question, I have made an extract on the inner face of the dog house and made an offset for 1mm (0.4*2.5mm =1mm).