Initial Setup
Before we begin, please ensure your grid settings are configured as follows:
Major Grid Spacing: 100 mm
Minor Subdivisions: 10
To change these settings at any time, go to the 'Grids and Snaps' tool on the bottom toolbar, then select 'Grid Settings'.
Step 1: Measure your block bot.
Use a steel rule to measure the width and height of your block bot in millimetres. For example, the one shown on the left measures 47 mm x 47 mm. Round this up to 50 mm x 50 mm so the headphones don't fit too snugly.
Step 2: Enter the RECTANGLE Command
Press the R key on your keyboard to activate the RECTANGLE command.
Select the X Z plane (the side piece of paper shown).
Begin drawing a new rectangle
Step 2: Draw a 2-Point Rectangle
Place the first corner of the rectangle on the grid as shown.
Drag out the rectangle and enter a width of 50 mm.
Press Tab to jump to the height field and enter 50 mm.
Alternative method: Count 5 squares wide (X) and 5 squares high (Y) on the grid, then left-click to finalise the shape.
Step 3: Draw Another 2-Point Rectangle
Place the first corner of the rectangle 10 mm left of the previous starting point.
Drag the rectangle to the right for 70mm, which is equivalent to 7 squares.
Left-click to finalise the shape.
Step 4: Finish the Sketch
Click the green tick in the top right corner of the screen to finish the sketch.
This action will change your view to isometric.
Step 5: Create the Headband Shape
Press E on your keyboard to activate the EXTRUDE command.
Select the outer parts of the shape you created in steps 1-4.
Drag the arrow to extrude by 20 mm, or type 20 mm directly into the dimension field.
(You have now successfully created the headphone headband.)
Step 6: Fillet the Corners
Press F on your keyboard to activate the FILLET command.
Select the inner and outer corners of the headband created in step 5.
Use the handle to pull the corners inwards to 5 mm (or type 5 mm).
Press Enter to confirm.
Step 7: Draw the Ear Cushion
Press C on your keyboard to activate the CIRCLE command.
Select the centre point on the right side of the headband, as shown.
Drag the circle outwards until it is 50mm (or type 50 mm).
Press Enter to confirm.
Step 8: Finish the Sketch
Click the green tick in the top right corner of the screen to finish the sketch.
This action will change your view to isometric.
Step 9: Extrude the Ear Cushion
Press E on your keyboard to activate the EXTRUDE command.
Select the circle you created in Step 7.
In the Extrude window, set the DIRECTION drop-down to SYMMETRIC.
Drag the arrow to extrude by 10 mm, or type 10 mm directly into the dimension field.
Set the OPERATION drop-down to NEW BODY (Note: This step is very important!).
Press Enter to confirm.
(You have now successfully created a basic headphone cushion!)
Step 10: Activate the Chamfer Tool
Open the MODIFY drop-down menu and select CHAMFER.
Step 11: Apply the Chamfer
Select the edge of the ear cushion created in Step 9.
Type 5 mm (or a similar value) into the dimension field.
Press Enter to confirm.
Step 12: Create a Midplane
Open the CONSTRUCT drop-down menu and choose MIDPLANE.
Select one side of the headphone band.
Select the ORBIT tool from the navigation menu at the bottom of the screen.
Left-click and drag anywhere on the screen to spin the model so you can see the opposite side.
Press Escape to exit the orbit tool.
Select the other side of the headphone band.
Press Enter to complete the midplane.
Step 13: Mirror the Ear Cushion
Open the CREATE drop-down menu and choose MIRROR.
Select the ear cushion you created in Steps 9-11.
In the Mirror window, click the Mirror Plane select arrow.
Select the midplane you created in Step 12.
Press Enter (or click OK) to complete the mirroring process.