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<strong>Step 21:</strong> Begin a brand new SolidWorks part for the fipple block (meaning don't build this part in the same screen that you built the train whistle body). Ensure your units in the bottom right corner are IPS. Begin a sketch in the Top Plane and draw a circle that is centered on the origin. Use the Smart Dimension tool to set the circle's diameter to 1/2 inch.

<strong>Step 21:</strong> Begin a brand new SolidWorks part for the fipple block (meaning don't build this part in the same screen that you built the train whistle body). Ensure your units in the bottom right corner are IPS. Begin a sketch in the Top Plane and draw a circle that is centered on the origin. Use the Smart Dimension tool to set the circle's diameter to 1/2 inch.

TW21

[[File:TW21.png|1500px|none]]

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<strong>Step 22:</strong> Draw a construction line from the top-most point of the circle through the origin. Use the Smart Dimension tool to set the length of this line to 3/8 inch (0.375 inch). Remember this dimension (3/8 inch) when you are creating a flat spot on the wooden dowel that will become your fipple block. You can measure this with calipers.

<strong>Step 22:</strong> Draw a construction line from the top-most point of the circle through the origin. Use the Smart Dimension tool to set the length of this line to 3/8 inch (0.375 inch). Remember this dimension (3/8 inch) when you are creating a flat spot on the wooden dowel that will become your fipple block. You can measure this with calipers.

TW22

[[File:TW22.png|1500px|none]]

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<strong>Step 23:</strong> Use the drop-down menu for a line and select a midpoint line. Draw a midpoint line starting from the bottom point of the construction line horizontally to the edge of the circle. It should span across the circle as shown in the screenshot below.

<strong>Step 23:</strong> Use the drop-down menu for a line and select a midpoint line. Draw a midpoint line starting from the bottom point of the construction line horizontally to the edge of the circle. It should span across the circle as shown in the screenshot below.

TW23

[[File:TW23.png|1500px|none]]

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<strong>Step 24:</strong> Use the Trim Entities tool to chop off the bottom part of the circle underneath the midpoint line.

<strong>Step 24:</strong> Use the Trim Entities tool to chop off the bottom part of the circle underneath the midpoint line.

TW24

[[File:TW24.png|1500px|none]]

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<strong>Step 25:</strong> Go to the Features tab and click on Extruded Boss/Base. Set the height (or depth) to 3/4 inch and click the green checkmark when you are finished.

<strong>Step 25:</strong> Go to the Features tab and click on Extruded Boss/Base. Set the height (or depth) to 3/4 inch and click the green checkmark when you are finished.

TW25

[[File:TW25.png|1500px|none]]

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<strong>Step 26:</strong> You should have a flattened dowel like the one shown in the screenshot below. Congrats! You've completed part 2 of 3. Save your work.

<strong>Step 26:</strong> You should have a flattened dowel like the one shown in the screenshot below. Congrats! You've completed part 2 of 3. Save your work.

TW26

[[File:TW26.png|1500px|none]]

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