Week 9 - Attachment Feature Creation - Challenge 2

Aim : To design Plastic Screw Boss and Dog House on existing model.

Design COnsideration for Screw Boss

• 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.

Design Consideration for Doghouse

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• 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

Draft analysis along Main Tooling axis

Draft analysis along slider tooling direction.

Feature Tree

Conclusion: Hence all the screw boss and doghouse are desiged as per the given standards.