Giant Metal Animatronic Cyborg Hand of DOOM!




It is useful for taking over the world.

I thought of it after I saw this Simple Animatronics

Step 1: Materials

for this you will need;


bike chain
1/2 in pipe
nails, or thin metal dowel
duct tape
metal plate
thin steel cable


metal saw
drill press

Step 2: Measuring and Cutting

Measure the bones in your hand, don't forget the ones that go from the fingers to the wrist. Double all of your measurements.
Cut the pipe to the measured lengths. You should have 19.
Cut the ends 45 degrees, except for the fingertips and the wrist.

Step 3: Hinges

Use the drill press to remove the pins connecting every other link in the bicycle chain. You need 14 hinges.

Step 4: Cutting

Cut the nails or dowel into 28, 1 1/2 in segments. 14 will work, thats what I used, but 28 is better.

Step 5: Finger Welding

Weld the bicycle chain hinges onto the finger joints.
Weld the nails beside the joint to prevent the finger from bending backward. weld it onto the lower segment, not the top, because it looks cooler. if you have 24 weld it on both sides of the joint.
weld a nut at the end of each fingertip.

Step 6: Finger Alignment and More Welding

Cut the metal plate to be the palm from the pointer finger to the pinkie finger.
Position the fingers correctly on the palm and weld them there.
Cut the rest of the plate to be the palm from the thumb to the pointer finger.
Position the thumb on the plate and weld it there.
Weld the thumb palm to the finger palm. (if you think it will work, you could try welding a hinge in there so it could grasp better.)

Step 7: Arm

Weld a pipe onto the outside of the thumb and pinkie at the base.
Cut the pipes where they reach your bicep when your fingers are touching the wrist.
Make double sided duct tape arm straps (sticky on the inside)

Step 8: Rigging

Cut the cable into 5, 2 foot lengths.
Crimp one end on each of them.
String them through the fingers.
loop each around your corresponding finger when your arm is in the straps, and crimp it together.
Cut off the excess.

Step 9: Rig Springs

You need 14 moderately powerful small extension springs.
Hook each end of the spring onto the holes in the bike chain hinges.

Step 10: Take Over the World

Take over the world!
or play guitar hero.



    • Epilog X Contest

      Epilog X Contest
    • Faux-Real Contest

      Faux-Real Contest
    • Sweet Treats Challenge

      Sweet Treats Challenge

    55 Discussions


    1 year ago

    Looks awesome! What kind of welder did you use? Is it a MIG welder, or a TIG?

    dude we need a video of you using these things i think i speak for all of us


    10 years ago on Introduction

    Where did you get the springs? Im making a pvc version with plastidip sprayed hands for better grip and the springs are all that i need to get.

    1 reply

    9 years ago on Step 10

    awesome but i am gonna try to make it smaller, I am being terminator for Halloween.


    Reply 9 years ago on Introduction

    naw naw naw you need 5 flame throwers to attatch to the top of each blade finger! :D


    9 years ago on Step 10

    correction, play guitar hero, then take over the world. both are fun to do!


    10 years ago on Introduction

    dude..... you just gave me the awesomeoust idea... so i drew it on paint.... PAINT ROXXORZ FTW! ... sorry had to get that outta my system. But yeah, i think itd be simpler than making a hand... and itd just be the coolest thing in the world to have a mechanical hand with 6inch knives for fingers.

    Knife Slasher thing.bmp
    4 replies

    Reply 10 years ago on Introduction

    It's kruger but that doesn't matter it's still the same kknife weilding mass murderer we know and love <3


    Reply 10 years ago on Introduction

    dont forget the flame thrower wich u can easily make out of low cost butane burner.. its nothing without the flame thrower PS. u can get powerfull lasers out of dvd burners (they can even light a match)