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<strong>Step 31:</strong> For this next step to work, you must go to the design tree, drop down the arrow next to the Boss-Extrude (created in the previous step), click on the Sketch icon, and click on the eyeball icon to show the sketch. With the sketch visible, select the larger circle and click on Extruded Cut. You may need to change the direction of extruded cut by clicking the Reverse Direction icon in the left column. Set the depth to 3/8 inch (0.375 inch). Click the green checkmark when you are finished. We've managed to do a neat trick here that creates two separate and unique features from a single sketch. The second screenshot below shows the results of the extruded cut as viewed from underneath. Yay! You've completed part 3 of 3. Save your work.

<strong>Step 31:</strong> For this next step to work, you must go to the design tree, drop down the arrow next to the Boss-Extrude (created in the previous step), click on the Sketch icon, and click on the eyeball icon to show the sketch. With the sketch visible, select the larger circle and click on Extruded Cut. You may need to change the direction of extruded cut by clicking the Reverse Direction icon in the left column. Set the depth to 3/8 inch (0.375 inch); this will be the depth that the Forstner bit cuts into the mouthpiece. Click the green checkmark when you are finished. We've managed to do a neat trick here that creates two separate and unique features from a single sketch. The second screenshot below shows the results of the extruded cut as viewed from underneath. Yay! You've completed part 3 of 3. Save your work.

TW31

TW31