Week 8 - Challenge 2 - Base Bracket Design
BASE BRACKET DESIGN
* TREE STRUCTURE
DETAILED REPORT OF BRACKET DESIGN DRAFT ANALYSIS
*CLASS A SURFACE MODEL
*TOOLING AXIS
* Before creating a main tool axis direction, first create a dummy tool axis for our refrence to be clear on x , y , z direction.
* Looking on the given Class A surface , we come to know that main tool axis to be in z direction cleared in a single tool axis both bottom faces and holes are loook to be clear in z direction axis
* Create a point taking the bigger circle as a refrence and create a line using point direction to create a dummy tool axis in z direction.
BISECTING LINE
Create a yz plane with the circle point as a refrence to create an intersection lines of a surface.
* Lines in perpendicular with 90 degree can be cleared easily. So need to look on the parallel surface line. Create a refrence line on both side and bisect the both line to create a main tool axis.
DRAFT ANALAYSIS
Once enter in to the draft analysis , compass has to moved to center tooling axis point , so the part can be readed using the draft analysis feature to define the tooling axis . Aftter that surface has been changed to green color.
Here in draft analysis each angle point is identified by a specific colors to understand clearly. Quick analysis mode and full draf analysis mode are given .
Quick analaysis
This mode is to know the exact draft angle difference of the model.
Full draft analysis
Full draft analysis gives the colour for the exact angle diffrences
Analysis running point is to calculate every faces of the model.
CLASS B SURFACE
*RIB
Class B surface starts with the ribs of the bracket . Select the 3 face of the rib with the Extract feature next the faces are to be Untrimmed and extrpolate the each face to trim the surface properly. And give the offset distance of 2.5mm which is the thickness of the Class A surface model to ensure Class A and Class B surface having equal wall thickness.
The other side of the rib also to be made in a same method as we followed for the RIB 1
*CENTER SLOT
As the Ribs are done next the center surface has to model. Select the center face for an Extract , Untrim the surface and give Offset of 2.5mm.
Next the outer boundary surface to be extracted then untrim and offset to 2.5mm. Then extrapolate the both center surfaceand outer boundary surface to perform a trim command.
First Trim the center surface to the Rib 1 and Rib 2 to clear the center surface. Next trim the center surface to the outer boundary surface to complete a whole body trimmed surface of Class B.
After completing the Final trim next fillets are to be applied radius measured in the Class A surface model. While giving radius in Class B fillet radius value is to be added with the wall thickness of Class A to main a eqaul wall thickness.
* FINAL TRIM OF CLASS B
CLASS C SURFACE
* SWEEP SURFACE
To create a Class C surface select the outer boundary lines of the Class A surface and create a sweep surface towards downward direction.
In swept surface selct the swepp type has a line and slect the with draft direction method to create a surface. Select the Tooling axis line as a draft direction point.
Same method has to followed to create a hole surface sweep. And use the Join coomand select Class A , outer sweeper surface and 2 hole surface to form a single solid.
* FINAL TRIM
Trim the complete Class C surface to the Class B surface to get the thickness of the part as given in Class A .
CLOSED SURFACE
After getting the final trim move to the Part Design feature select the Closed surface model select the final trim model to get a complete closed surface.
To check whether the surface is a closed surface can be confirmed through the boundary featured. If the faces are closed , boundary surface would not form.
DIFFERENTIAL VIEWS
ISOMETRIC VIEW
FRONT VIEW
SIDE VIEW
TOP VIEW
