Name Date

Science Class

Hydraulic Robotic ArmWe will be using tools and materials to

create a compound machine called a

hydraulic robotic arm. This arm will have

four different ways to move to be able to

complete simple tasks, like lifting an

item, and placing it elsewhere. Our

source of control for the arm will be

hydraulics. Hydraulics is the use of liquids

through pipes as a source of force. Our

robotic arm compresses and

decompresses air and water to move

pistons that in turn move the robotic

arm.

Goals:

1. Each team of students will complete a working hydraulic robotic arm.

2. Students will learn the purpose of simple machines, types of simple machines, and how

they work.

3. Students will calculate work performed using the formula W = Fd (work = force times

distance)

4. Students will analyze and evaluate the properties of materials used to make different

parts of the hydraulic robotic arm.

Materials for each Hydraulic Robotic Arm

Part Material Specifications Amount

Base Double-thick cardboard 23cm by 34cm 6

Pistons

Jumbo craft sticks 15cm by 1.75cm 9

Skewer 27cm long 1

Plastic syringes 10cm capacity 8

string Thin but strong 1 meter

Flexible tubing to fit syringes 55cm long 4

Robotic Arm

Double cardboard for base and jaws

Jumbo craft sticks for base and jaws 15cm by 1.75cm 7

Chopstick for pivot poles 1

Paint sticks for articulation joints 30cm by 2.75cm 4

Connectors: large paper clips 4

paper

Skewers to fit syringes 27cm long 4

Other materials: hot glue, white glue, scraps of double-thick cardboard

Tools: metric ruler, drill, hammer, serrated knife, wood knife

Source

TeDigoComoSeHace. "How to Make Hydraulic Powered Robotic Arm from Cardboard." YouTube.

YouTube, 03 Jan. 2015. Web. 12 Apr. 2017. https://www.youtube.c om/watch?v=R82cqi4JLV8%2B

%28Spanish%29

Additional Sources

Mist8k. "Make A Hydraulic Arm!" YouTube. YouTube, 31 Oct. 2014. Web. 14 Apr. 2017.

https://www.youtube.com/watch?v=wTM6Zik_tww

"How to Make a Hydraulic Arm." YouTube. YouTube, 20 Mar. 2015. Web. 14 Apr. 2017.

https://www.youtube.com/watch?v=qVDae3EEewA

"Brazo Robótico Hidráulico Mecánico Casero Hydraulic Robotic Arm Home." YouTube. YouTube, 05

Mar. 2016. Web. 14 Apr. 2017. https://www.youtube.com/watch?v=3pbyBl00h1E

"An Arm and a Leg - Activity." Www.teachengineering.org. N.p., n.d. Web. 14 Apr. 2017. https://www.teachengineering.org/activities/view/hydraulic_joy

"Hydraulic Arm Challenge - Activity." Www.teachengineering.org. N.p., n.d. Web. 14 Apr. 2017. https://www.teachengineering.org/activities/view/wpi_hydraulic_arm_challenge

McMaster-Carr. N.p., n.d. Web. 14 Apr. 2017. https://www.mcmaster.com/#plastic-syringes/=16r8dnf