fabrication of animatronic hand.pdf


FABRICATION

OF

ANIMATRONIC HAND


FABRICATION OF ANIMATRONIC HAND

STEP 1: Take the coroplast with the size of 30x45.

NOTE: Coroplast will have upper surface and bottom surface in between both

the surface it looks like a tunnel.

STEP 2: Place your hand on the coroplast and sketch the outline of your hand

using a marker.

NOTE: The position of Coroplast (lines) should be kept in horizontal as shown

in the figure below.


STEP 3: Take the cutter and draw (score) over Upper surface the hand outline

as shown in the figure.

NOTE: Cutter should be used carefully while scoring the coroplast.

STEP 4: After scoring completely on the outline in the coroplast repeat scoring

one more time with some pressure so that it will create an outline on the bottom

surface of your coroplast.


STEP 5: Turn over the coroplast outline of a hand will be visible as shown in

the figure below.

STEP 6: Take the marker and sketch on the outline in the bottom side of the

coroplast and cut it with the cutter once again for easy removal.


STEP 7: After removing the outline from the coroplast your prototype hand

will look like this as shown in the figure below.

STEP 8: Take the marker and draw as shown in the figure.

Front View Back View

STEP 9: Take the cutter and score on the marked surface, it will fold as shown

in the figure

Note: The scoring should be done on the Back surface of the coroplast.


STEP 10: Take the coroplast and cut out the tunnels with the dimensions shown

in the figure.

STEP 11: Take the short tunnel and long tunnel, glue them for all the fingers as

shown below.


STEP 12: Take the short tunnel, glue them on back side for all the fingers as

shown below.

STEP 13: Make a bridge out of coroplast and place it near the bottom of the

hand as shown below.


STEP 14: Tie the Rubber band to Top end first and pass them through the

tunnels and tie at the bottom according to the tension as shown below.

STEP 15: Tie the Rubber band to all fingers as shown below.

STEP 16: From the remaining Coroplast take the rectangle with the dimension

mention below.


STEP 17: Make two holes for servo motors according to the dimensions as

shown below.

STEP 18: Take a small coroplast of rectangular shape and fix it in the side of

coroplast as shown in figure.

NOTE: This piece of coroplast is to fix a servo for thumb.


STEP 19: Make a hole in one arm of the servo motors using 2mm drill bit as

shown below.

STEP 20: Place the servo motor as shown in the figure below.


STEP 21: Glue the Rectangle Coroplast to the back of the hand with the

dimension below and place to long tunnel as shown below in the figure.

STEP 22: Take a Nut and tie a string to finger first tunnel, pass the string

through all tunnels and tie it to the servo motor.

STEP 23: Tie all the string to all the fingers as shown in the figure below.

NOTE: Length of the string should be matched for each fingers.

2Cm


STEP 24: The complete setup is shown below in the figure.

fabrication of animatronic hand.pdf

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