Week 10 - Challenge 1- Attachment Feature Creation (Ribs & Screw Boss)

AIM:- 

           To Create the rib for the Drill Handle &  Screw boss considering the design rules mentioned in the video.

DESCRIPTION:- 

• Used Positioned sketch.
• Sketches are Iso-Constrained.
• Ensured Proper Tree Structure.
• Geometrical sets had a proper name based on the sketches present inside of it.
• All the sketches are created under the Geometrical set.
• Thickness of the component is 2.5mm.

TOOLING AXIS:- 

                 

The above image shows all the axis directions in that Y axis direction is more feasible for the tooling axis. Most of the surfaces are visible in that axis. The tooling axis was created using Bisecting method.

DRAFT ANALYSIS:-

             For Draft analysis more tooling axis created for this drill handle  to check the given class A is clearing draft analysis or not . The given class A is not clearing the draft analysis even creating multiple tooling axis for the given class A.

These Class A surfaces are having less than 2.8deg of draft angle.

 DRAFT ANALYSIS OF THE SOLID BODY OF DRILL HANDLE:-

Due to the given class A surface &  in draft analysis were some surfaces are not cleared nominal 3deg draft. In class B surface also the same condition. In class C surface perpendicular to tooling axis will be created with reference surface and 90deg draft sweep. C surfaces which are parallel to tooling axis will be created with draft direction 3deg draft sweep. The connecting corner  C surfaces are created using multisection surface with the help of boundary and spline of the respected two support surfaces.

 DRAFT ANALYSIS OF RIBS & SCREW BOSS OF DRILL HANDLE:-

RIBS AND SCREW BOSS WERE CREATED WITH RESPECT TO THE DESIGN RULES MENTIONED IN THE VIDEO.

General Guidelines for Ribs:-

•   Draft  - 0.5 degrees on the walls of Ribs
•   Thickness -  Typically 40-60%* of the nominal wall at the base.
•   Height -5*t
•   Radii - 0.25mm maximum radii.   

RIB ROOT THICKNESS ANALYSIS:-

 

General Guidelines for Screw Bosses:-

•   Draft  - 0.5 degrees on the walls of boss.
•   Thickness -  Typically 40-60%*t of the nominal wall at the base.
•   Radii - 0.25mm maximum radii.  

Screenshots of the completed design in various orientations (Isometric, Front, Side, and Top View):-

TREE STRUCTURE:- 

   

 PUBLICATIONS:-