Week 9 - Attachment Feature Creation - Challenge 2
The draft analysis of the coin holder can be made with a fillet angle and draft direction of 3 minimum degree component.
PROCEDURE FOR CREATION OF SCREW BOSS ON A COIN HOLDER IS AS FOLLOWS.
The tooling axis of the component coin holder can be given in the component which can be made with some dimensions.
1)Class A boundary and curves.
To create a tooling axis of the component we should considered boundary of class A surface and extract it.
The side tooling axis can be created by considering the point on a surface which can be taken from the point definition and create a point on a surface.
After creation of class A surface we should go for B surface creation, so for that considered the side walls of the component and extract them togetherally.
After extracting the components of side walls let perform the surface untrim operation to get close surface finish of the component.
After that extrapolate the side walls with some distances with no propagation mode for the easy removal of the material component.
After extrapolating these surfaces just offset the components to a distance of 2.5mm.
The top wall has to be considered for class B surface and all the operations which we have conducted on the side walls which gives a proper surfaces which are most important for the creation of class B surface.
The top wall can be extrapolate for some distances to get a close body surface which is taken for the consideration.
After extrapolating the top wall offset it to a distance of 2.5mm of the top wall.
The outer hole of the component can be considered and extrapolate the component and make offset to a distance of 2.5mm.
Consider the base surface creation and do all the operations like what we have done for side walls and a top walls like extract,untrim,extrapolate and trim the surfaces and offset to a given distances.
1)Extract
2)Untrim
3)Extrapolate surface
4)Offsets of base
Trim all the surfaces with proper dimensions by selecting the proper sides of the components.
Fillets can be provided to the components which are at some distances.
Select the outer surface of the component and perform the operations like multiextract, untrim and extrapolate and offset it to a distances.
The extracts can be joined by using the join commands which should be helpful in getting the edge fillet of the outer flanges.
After this create a Class C surface and join class A and class B surface with a minimum thickness of the component and make that component as solid body.
After doing all these steps do a final trim and get body which we can name it as final body of the coin holder.
For to create a dog house of the coin holder we just follow the design guide lines for the creation of dog house.
The minimum draft angle can be maintained between the inside and outside component is 0.5 for innser circle and 1.5 degree for outer one.
The minimum thickness of the component can be made with a minimumof 40% of the actual thickness and height of the dog house is 3 top 6mm.
Multi views of coin holder with proper dimensions can be shown below.
The draft analysis of the class A and draft analysis of dog house can be done with preferred dimensions in the format which can be done with draft angle thickness of the dog house and class A surface.
