I am Nishant Chandna from India. I am 14 years old. For this cardboard contest, I have made this cardboard robotic arm. It is quite easy to make. Make it and have fun. Please support me and share your views in the comments section below. This robotic arm is made using cardboard.
Step 1: Draw
Draw an outline of the hand. Make it according to the size you want
Step 2: Cut It Out
Now cut it. you will get something like the image above
Now make a handle by which you will be holding the robotic hand like in the image above
Step 4: Fold
Now observe the image above and fold accordingly. This will help you, move the fingers at last.
Step 5: Making It Strong
Now to make it strong you need to paste some more hard cardboard pieces. you can also use popsicle sticks if you want
Step 6: Sticking the Pipes
Cut some small pieces of straw and paste them on the hand as shown in the images above. Through these pipes we will take out the threads
Step 7: Thumb
Due to the positioning of thumb, we need to stick the straws in a bit different way. See the above images to get a better understanding.
Step 8: Put the Threads In
Now stick the threads on the top of the fingers now take the thread through the loops made by straws. Now make small loops at the end to put your fingers in
Step 9: Ready
Now the hand is ready. you can use this robotic arm to hold things, do hand gestures etc. Now its ready have fun!!!