Page 60 - Speedy Delivery IQ

3. Exploring the Claw and Arm's Motion

 If you opened your claw fully before opening the Device Menu, then the Claw Motor
considered its fully opened position to be 0 degrees - as it displayed in the Device Menu.

In your engineering notebook, predict what the values of the Port 11 Motor (Claw Motor)
will be when you close the claw by gently pushing the sides together. What will the Angle
value in degrees be when the claw is closed?

o Hint: The value reported will not be the same one shown in the image below.
 Test your prediction by gently pushing the claw closed. What angle is now shown in the
Device Menu for the Claw Motor?

 Continue using your hands to gently open and close the claw so that you can see the
angle changing.

 What do you notice about the range of the angle in degrees for the Claw Motor? Do the
Angle values continue to increase, or do they have limits?
 Write down the range of the Angle value for the Claw Motor: the Angle value when fully
opened to the Angle value when fully closed.
 Are the Angle values for when the claw is open always the same? Are the Angle values
for when the claw is closed always the same? Why do you think that is?

Now, let's explore how the arm moves. The Arm Motor is connected to Port 10.

 Use the Down button to navigate to Port 10 in the Device Menu.

 Once Port 10 is selected, manually move the arm up until it is just above the motor and
then lower it down. What do you notice about the range of the angle in degrees? Is it the
same as the claw?