Now you have to make the holder for the claw that goes between the “C+CUBE+C” piece.

The holder is a “rectangular cube” that is 4 inches long and the sides are 2 inches by ½ inch.

follow the same steps in step 4 and the attach to the front of the "C+CUBE+C" piece flush with the front.

Now make the claw, the "D" piece. depending on the thickness of your cardboard you need to put as many layers of cardboard and tape as you want until you get a strong claw (in my case 2 layers of cardboard and one of tape)

Make hole in both parts of the claw large enough for your 1 1/4" screw

Now make a hole in the front corner of the claw holder in the "C+CUBE+C" piece

Put you screws and attach the claw parts.

At this point you should be half way there, hold the parts on their place and drill you have to drill in the joints of the robot across the inside of the cubes and place you screws.