Week 8 - Challenge 3 - Coin Holder Design

AIM : The objective of this project is to create the Coin Holder Plastic component through the given Class-A surface and to begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end need to perform the Draft analysis on the final closed model.

STEP 1

CREATING CLASS A SURFACE

• Open the STEP File in the software. And then copy the model into the Class A Tree Structure.
• After that, check the connectivity of the surface, if its not connected use JOIN feature to connect all surfaces into single surface.

• Class A Surface After using Join feature.

STEP 2

CREATING TOOLING AXIS

• For creating tooling axis, there should be a point on the surface. For creating a point, extract the base surface from class A surface and create a point on that surface. After that, create a line using line type as point and direction.

STEP 3

PERFORM DRAFT ANALYSIS ON CLASS A SURFACE

• After creating a Line for Tooling direction perform Draft analysis on the class A surface
• Fot that align the compass with respect to the tooling direction and lock position.
• Select Class A Surface as the element to see the draft analysis.

STEP 4

CREATING CLASS B SURFACE

• After performing draft analysis, copy the Class A Surface and paste it in the Input of the Class B Surface and then hide the class A Surface.

1. SIDE WALL

• For creating the side wall of the B surface, extract the side walls from class A Surface by using Multiple Extract feature.
• After extracting the surfaces use Extrapolate feature to expand the surface
• Use Trim option to join all the surfaces.
• Finally, offset the trimed surfaces to 2.5 mm.
• Then, use Measure between feature to measure the radius of the fillet on class A surface. Use this radius to give fillet to the side wall by using Edge Fillet feature.

2. BASE COVER

• For base cover, extract the base surfaces from class A Surface.
• And then use Extrapolate feature to expand.
• After doing that, use Trim to join them into single surface.
• Offset the trimmed surface to about 2.5 mm.
• After, offseting trim the base cover with the side wall.

3. TOP WALL

Similarly perform all the operations which was used above.

• Extract the top surfaces form class A Surface by using Multiple Extract feature.
• Join all the suface by using Join feature.
• Then, use Extrapolate to expand the surface.
• Use Offset option to offset the surface to about 2.5 mm.
• Finally, trim the top wall and the base cover.

• After Extrapolating the surface.

4. OUTER FLANGE

• Extract the outer flange surfaces form class A Surface by using Multiple Extract feature.
• Join all the suface by using Join feature.
• Then, use Extrapolate to expand the surface.
• Use Offset option to offset the surface to about 2.5 mm.
• Trim the outer flange surfaces.

• Finla look of the trimmed surfaceof outer flange.

5. INNER SURFACE

• Same way Extract the surfaces on the Class A Surface.
• Then use Untrim the surfaces and the use Extrapolate to expand the surfaces.
• Use Trim feature to trim all the surfaces and Offset them to about 2.5 mm.
• Finally, Trim the surface with the trimmed surfaces.

Final Class B Surface

• Trim all the individual surfaces to create Class B Surface.

STEP 5

CREATING CLASS C SURFACE

• Create a curve smooth on Class A Surface by by using Curve smooth feature on operation toolbar.
• After that, use Sweep option with line direction. For that, select the curve smooth for guide path and tool axis for draft directiion.
• Add an angle to about 90 degree and for lengt give 5-10 mm. And click preview and ok.

• Now trim the Class A Surface with the Class C Sweeped surface.Finally, trim the surface with the Class B Surface to get the Closed Surface.

STEP 6

PERFORM DRAFT ANALYSIS ON CLOSED SURFACE

• For doing this analysis, the close surface should be on shading with material mode.
• Select draft analysis and adjust the compass to align with the tool axis and lock the compass.
• Select the closed surface as the element to see ths analysis.

STEP 7

CREATING PARTING LINE

• Use Multiple Extract Feature to define the boundaries from the Closed Surface.
• After extracting, change the line style to differentiate the parting line.
• The yellow dotted line represents the parting line.

STEP 8

SOLID MODEL

• For creating solid model, go to part design and select close surface option and select the closed surface to become solid component.

MULTI VIEW