Week 9 - Attachment Feature Creation (Ribs & Screw Boss) - Challenge 1

AIM:

 Create the Drill Handle  Plastic component through the given Class-A surface.  Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model. 

OBJECTIVE:

• Create the rib for the Drill Handle considering the design rules 
• Create the Screw boss for the Drill Handle considering the design rules
• To perform the draft analysis over the plastic component.

IMPORTING THE MODEL 

• Open the downloaded IGES file make it has  class A surface by jioning all the surfaces

PROCEDURE:

• Doing the continuity check to ensure whether given class A surface is continuos or not.By using Boundry/jion method,It seems there is no dis-continuos boundry

• create point on Class A surface plane & create tooling axis on point & normal to  surface (On surface method)

• Perform draft analysis on the given class A surface,Below pic shows the result of draft analysis,It cleares that it has 3^0 draft throughout the surface with respect to tooling axis as it is in green color

 

Creating Class B surface:

• In this component Directly offset class A surface to 2.5 mm 

 

• Then repair the patches of  class B surface 

 

• To repair used the operations like multi surface,trim, jion etc with help of  tools like line,spline obtain the class B surface

 

•  The finle Class B

Creation of Class C:

• Extract all the boundry of class A surface Separately by observing the complexity ,Then sweep them 
• Trim them together then we will get Class C surface

• Jion the class A & class C surface(by trimming)

 

• Then jion all the Class A,B & C Surfaces

• Then convert this closed surface to part body in the part workbench,we will get the Drill Handle  plastic component 

• Create the rib/Screw boss for the Drill Handle considering the following design rules.

• Operations done to create Rib & screw  Boss & finle component

•  perform the Draft analysis on the Finle model. 

From the above figure we can observe it is satisfying 0.5^0 draft For Both Ribs & Screw Boss

•  solid model with the proper color code of the draft angle in various orientations
  • green- 0.5^0
  • Red- 0^0
  • Blue- negative side & in this case in some area of  C surface is also blue  beacause it is having 90^0
• Isometric view

• Front view/Back view

• Side view

 

• Top view/Bottom view

CONCLUSION:

The Plastic Component is created & Draft analysis is Done