Week 9 - Challenge 1 - Base Bracket Design

OBJECTIVE:

The main objective of this challenge is to create the Base Bracket Plastic component through the above-given Class -A surface, by giving the 'Tooling Axis' and 'Draft Analysis' to the class- A surface of the base bracket

TOOLING AXIS:

The Toolind Direction is basically the direction that the mold pulls apart. The mold is built in two separate pieces, basically. You have a Cavity side and you have the core side. The core pulls apart from the cavity and that's the Dyeline or the Tooling Directiion.

• Open the given CAT part file
• Find the correct tooling axis where the material don't interfere with the tooling axis and all the elements can be created.

• Create an axis system using at the centre of the circle and creating a dummy tooling axis
• Intersect the yz plane with respect to the class A surface

• Hide the class A surface and create point to point lines on the suspected drafts.
• create bisecting line with the two lines and point to create a tooling axis.

• BISECTING LINES were used to get the exact medium from the two sides so that maximum positive draft angle can be achieved.
• The tooling axis is created for the component

PUBLICATION:

• Publication is done to the component to make it visible and navigate easily.
• To publish the component go to tools >publicationn and then select the tooling axis and the class A surface.
• A separate tree structure is formed under the main part.

DRAFTING ANALYSIS:

The Drafft Analysis command enables you to detect if the part you drafted will be easily removed. Thsi type of analysis is performed based on color ranges identifying zones on the analyzed element where the deviation from the draft direction at any point, corresponds to specified values.

• Before going to draft analysis go to customized view parmater > under mesh> check material and then click ok.
• Now for draft analyses go to insert >> analysis >> feature draft analysis.
• use the compass to define the draft direction.
• In the colour scale change the draft angle to 3 degree.
• The component changes to green in indication of passing draft anlaysis.

• Use running point to check the angle on the component
• The draft analysis is complete.

CREATING CLASS B SURFACE:

• Extract the surfaces from the class A using multiple extract and untrim them
• Use extrapole to make sure that all the untrims are properly intersected to trim and offset the surfaces to 2.5mm to create the thickness.
• Trim the extra surface using trim command.
• Insert them into new geometrical set and name it with respective part names.
• Apply fillets to the model afteer creating the entire surface.
• If the fillets are outside the fillet value will be added to the thickness of the component, for instance the thickness of the component is 2.5mm to create the thickness
• Trim the extra surfacess using trim command.
• Insert them into nnew geometrical set and name it with respective part names.
• Apply fillets to the model after creating the entire surface.
• If the fillets are outside the fillet value will be added to the thickness of the component, for instance the thicknessof the component is 2.5mm the fillet value is 3mm so the outside portion value should be 5.5mm to get uniform thickness.

• Perform trims one at a time so that it will be clear to understand.

CREATING CLASS C SURFACE:

• Extract the boundary from the class A surface using boundary command.
• Using sweep command > choose profile type line > subtype as with draft direction> choose guide curve and draft direction > draft angle as 3 degree> preiview.

• After getting sweep then trim the output with class B surface to get final output.

• Now open part design workbench and using close body surface create a solid of the component.

3D MODEL: