We value you as a customer and your satisfaction with this product is important to us. If you have
comments or questions, or you find any part of this kit missing or defective, please do not hesitate
to contact our distributor in your country. You will find the address printed on the package. You
are also welcome to contact our Marketing Support Team: Email: infodesk@4m-ind.com, Fax
(852) 25911566, Tel: (852) 28936241, Web site: WWW.4M-IND.COM
41-03284/1 211209
QUESTIONS & COMMENTS
QUESTIONS & COMMENTS
©2009 4M Industrial Development Limited. All rights reserved.
A. SAFETY WARNINGS
1. Please read carefully through all these instructions.
2. Adult supervision and assistance are required at all times.
3. This kit is intended for children over 8 years of age.
4. This kit and the finished product contain small parts which may cause chocking if
misused. Keep away from children under 3 years of age.
5. Use of scissors is required. Adult supervision is required when using scissors.
FOR AGES OVER 8
WARNING:
CHOCKING HAZARD
SMALL PARTS.
NOT FOR CHILDREN UNDER 3 YEARS.
5 finger end caps
5 finger tubes
Fishing lines
1 hand frame
3 pull rings
B. CONTENTS
8
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0
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5
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28
29
cm
cm
9
D. OPERATION
Hold the Robotic Hand with its flat face (i.e. the back of the hand) facing up. Grasp the
frame with your right hand, with its palm facing down. Put your first three fingers into the
pull rings, holding the frame with your thumb and little finger. Pull on the rings to make the
Robotic Handʼs fingers and thumb bend.
Can you grip your other hand
?
Can you pick up an object
?
Put a glove onto the Robotic
Hand, and find a shirt or other top with a sleeve long enough to hide your real hand when
you are holding the Robotic Handʼs frame. Shake hands with your friends with your unique
Robotic Hand. They will be amazed!
E. HOW IT WORKS
When you pull on one of the rings, the strings shorten the inside of the fingers attached to
the ring. The outside of the finger remains the same length, so the shortening makes the
fingers bend inwards.
F. FUN FACTS
• Industrial robots work in factories, moving and joining parts of things being made. They
have grippers for picking up objects, with two or three fingers that can open and close.
• In robot hands, the fingers are moved by tiny motors, hydraulic rams or air-powered
artificial ʻmusclesʼ.
• Robot researchers have built robot hands that look like human hands and have fingers
that move like human fingers. They are very complicated machines, using many joints and
a dozen or more motors.
• Human-like robot hands could be used in humanoid robots.
• Robot hands have pressure sensors in the finger tips. When the fingers are gripping an
object, the sensors prevent the fingers from squashing the object.
• In human hands, thin tendons running inside the fingers make the fingers bend. The
tendons are pulled by muscles in the forearm.
• Prosthetic hands are for people who have lost a hand or arm in an accident. They are like
robot hands, but they are controlled by electrical signals from the remaining muscles in the
arm.
1
2
3
4
5
tie a few knots
tie a knot
6
7
TEMPLATE A
TEMPLATE B
7
7
To Parents: Read all instructions before
providing guidance to your children.
tie a few knots
knot 2
knot 1
knot 1
knot 2
knot 3
C. ASSEMBLY
Remarks: You need to tie a number of knots on the fishing line in the following assembly
instructions. Fishing line is elastic and the knots may loosen themselves over time. Use the
measurement templates which indicate the knot positions and lengths of line required.
Always tie a few knots to secure the knot in place. Allow extra fishing line when tying the
knots. You can always cut away the excess length after the knots are finished.
1. Starting with the little finger, examine the finger tubes. The end with the narrow ring is
the tip and the end with the wider ring is the finger root, which slots into the hand frame.
Cut a piece of fishing line 28 cm long. Use TEMPLATE A below for measurement. Place the
fishing line on the template and mark the three knot positions with a marker or ball pen on
the fishing line. Thread the line through a finger end cap. Tie a few knots at the first knot
position to stop it slipping back through the hole in the cap.
2. On the inside of the rings on the finger tubes are small sleeves. Feed the other end of the
fishing line through all the sleeves to the end of the finger tube.
3. Now slot the end cap into the end of the finger.
4. Hold the hand frame with the plastic loops facing upwards. Push the finger tubeʼs root
end into the first loop. The sleeves holding the fishing line must also be uppermost so that
the fingers will bend the correct way.
5. Repeat 1 to 4 steps again for the ring finger (the one next to the little finger).
6. Tie the fishing lines from the first two fingers together at the second knot position. The
tied lines should be tight after they are tied. This will allow the fingers to bend properly
when the lines are pulled.
7. Thread the ends of the two fishing lines through the first hole in the square holder frame.
Tie them into the hole in a pull ring at knot position 3. By now the pull ring should be touch-
ing the upper edge of the frame. Cut off any excess fishing line after you have tied all the
knots. Try pulling the pull ring — the two fingers should bend properly. If they donʼt, re-do
the knots.
8. Repeat the above steps for the middle and index finger tubes.
9. For the thumb, cut a piece of fishing line 23 cm long and mark the two knot positions
following TEMPLATE B below. Now follow steps 1 to 4. Unlike the first four fingers, the
thumb does not share a pull ring with another finger. Just tie the line directly to the pull ring
at the second knot position.
Check all knots are secured and pull the rings to see if all fingers bend properly. Cut away
the excess length. Congratulations! Your Robot Hand is complete.
