Documentation for Part 2 of Week 2

Challenge Overview

The objective of this exercise is to modify the piece created in Part 1 (link to Part 1) by applying precise material removal at strategic points while respecting dimensions, tangency constraints, and other specifications.

Short Demo

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Link to Download: Link to download

Implementation Steps

Step 1: Second Cylindrical Drilling

We will begin by performing an 11 mm diameter drilling on both ends of the piece at the second extremity.

Process

1. Select the base sketch for the operation.

   

2. Draw a circle at the desired extremity and apply the correct dimensions.

   

3. Apply material removal using the drawn circle:

   • Click on Features > Extrude/Cut Material.
   • Select the circle and apply the extrusion.

   

Note: The software defaults to "up to the next surface," but you can also adjust it manually if needed.

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Step 2: Create a Prismatic Cut

Process

1. Divide the piece into three sections as shown below:

   

2. To achieve this:

   • Draw a horizontal line and dimension it at 52 mm from the opposite extremity.

   • Draw a second horizontal line to delimit the crest.

     

3. Use the Convert Entities tool to select the contours of the surfaces to be extruded.

   

4. Use the Trim Entities tool to remove excess outlines.

   

5. Perform an extrusion of 19 mm on these surfaces.

   

Warning: Always ensure the correct face orientation for the sketch. The extrusion zone is on the left when the crest faces forward.

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Step 3: Create the Last Semi-Cylindrical Cavity

We will now focus on the final drilling step.

Process

1. Create a plane located 12 mm from the solid face of the piece.

   

   

2. Draw a circle in the area to be drilled and dimension its radius to 41 mm.

   

3. Apply a dimension of 36 mm.

   

4. Delimit an entity in the specified zone:

   • Click on Convert Entities and select the area to be delimited.

   

   

5. Use the Trim Entities tool to polish and remove excess portions.

   

6. Align the center of the circle with the extreme edge:

   • Draw a vertical construction line along the extreme edge.

   • Apply a coincidence relation between the circle's center and the line.

   

7. Apply a material removal of 24 mm from the obtained surface:

   • Click on Extrude/Cut Material.
   • Select the opposite side of the solid face and input the value 24mm in the dimension field.

   

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Step 4: Determine the Mass

To calculate the mass of the piece:

1. Select Equation icon and actuate the values of global variables

   

   

2. Click on the Evaluate tab, then select Mass Properties.

   

The final mass obtained for this test is 628.18 g.

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Additional Notes

• Always double-check dimensions and constraints before applying material removal.

• Ensure proper alignment of features to avoid misplacement during extrusion.

• Use construction lines and geometric relations (e.g., coincidence, tangency) to maintain precision.

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