We will be creating a pen to hold a standard Ball Point Pen refill cartridge.

Step 1: Press the L key on your keyboard to enter the LINE command.

Select the side plane to start a new sketch here.

Start a new vertical line where the green and red lines overlap.

The size is not important as we will change this later.

Step 2: Press the D key on your keyboard to enter the DIMENSION command.

Click on the line drawn in step 1 and enter a dimension of 150mm.

Step 3: Press the L key on your keyboard to enter the LINE command.

Select the top of the line to start a new sketch here: Create a new horizontal line that extends 3mm.

Select the bottom of the line to start a new sketch here: Create a new horizontal line that extends 6mm.

Step 4: Select the 'Create' drop-down menu.

Go to 'Arc' > '3-Point Arc'.

1. Select end of the top horizontal line.

2. Select end of the top horizontal line.

3. Create an arc.

Press OK.

Step 5: Click on the green arrow in the top right corner of the screen to 'finish sketch'.

This will change your view to isometric.

Step 6: Select the shape (profile) that you created in Step 4.

Select the REVOLVE tool from the top menu.

Select the AXIS, which is the line created in Step 1.

Enter a value of 360 degrees.

Press OK to complete the revolve command.

Step 7: Press the C key on your keyboard to create a CIRCLE from a center point.

Select the top face of your pen and draw a 2.5mm diameter circle.

Step 8: Click on the green arrow in the top right corner of the screen to 'finish sketch'.

This will change your view to isometric.

Step 9: Press the C key on your keyboard to create a CIRCLE from a center point.

Use the ORBIT tool to select the bottom face of your pen. Alternatively select the bottom view on the view-cube.

Draw a 6mm diameter circle on the bottom face.

Step 10: Press the E key on your keyboard to enter the EXTRUDE command.

Select the circle you created in step 7 and pull this inwards to remove material.

You should see the operation change from 'New Body' to 'Cut'...

Step 10: Press the E key on your keyboard to enter the EXTRUDE command.

Select the circle you created in step 9 and enter a dimension of -130mm to remove material.

You should see the operation change from 'New Body' to 'Cut'...

Step 12: Select the CONSTRUCT drop-down menu and then select OFFSET PLANE.

Select the bottom of the pen and enter a dimension of 100mm and press Enter.

Step 13: Press the C key on your keyboard to create a CIRCLE from a center point.

Select the new plane that you created in step 12.

Draw a circle with a dimension of 12mm.

Press Enter to complete the circle.

Step 14: Click on the green arrow in the top right corner of the screen to 'finish sketch'.

This will change your view to isometric.

Step 15: Press the E key on your keyboard to enter the EXTRUDE command.

Select the circle you created in step 13 and enter a dimension of -10mm to extrude material.

You should see the operation is 'New Body' .

Step 16: Press the C key on your keyboard to create a CIRCLE from a center point.

Select the top of the cylinder that you created in step 15 and select the centre point where the red and green lines overlap.

Draw a centre point circle with a dimension of 6mm.

Press Enter to complete the circle.

Step 17: Click on the green arrow in the top right corner of the screen to 'finish sketch'.

This will change your view to isometric.

Step 18: Press the E key on your keyboard to enter the EXTRUDE command.

Select the circle you created in step 15 and enter a dimension of 60mm to add material.

You should see the operation is 'Join' .

Step 20: Press the A key on your keyboard to enter the APPEARANCE command.

Select the material that you would like from the list and drag this directly onto the model.

You can apply materials such as anodized aluminium from the metal > Aluminium folder.