How to Build a Syringe Robot


Robots are machines you can program to perform any task, particularly tasks that are dangerous or far away. While most industrial robots work primarily by using electrical power and computer programming, some aspects of robotics work with hydraulics. Hydraulics uses pressurized liquids to cause motion, and a syringe robot uses the liquid in syringes to move the robot's parts. You cannot program a syringe robot as you would an industrial robot, but you can make a syringe robot arm to move objects from a distance.

Things You'll Need

  • Syringes
  • Rubber tubing
  • Cardboard
  • Wood
  • Duct tape
  • Screws
  • Screwdriver
  • Hinge
  • Wire
  • Wood glue
  • Nails
  • Hammer
  • Water

Steps to Build a Syringe Robot

  • Build the parts of your robot arm using wood or cardboard. You need a base on which to rest the structure, a tower coming up from the base, an arm extending horizontally from the tower and two small, flat pieces of wood or cardboard for the gripper. Attach the base, tower and arm with nails or wood glue.

  • Attach a large syringe to the tower using duct tape. The plunger should be toward the top of the arm. Use duct tape to affix the plunger to the underside of the arm.

  • Attach a smaller syringe to the arm with duct tape, with the plunger facing toward the arm end that will attach to the gripper.

  • Attach the gripper pieces to the hinge with screws. The hinge then attaches to the end of the smaller syringe, wired so that the hinge opens and closes as the syringe plunger moves in and out.

  • Connect the syringes to rubber tubing, reinforcing the connections with duct tape as necessary.

  • Connect the rubber tubing to two control syringes (one for each of the robot's syringes). Fill with water the syringes connected to the rubber tubing.

  • Depress the control syringes to increase the pressure inside the robot syringes. This will extend the plungers and move the robot parts. Pull back on the control syringes to cause motion in the opposite direction.

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