SMA changes its length when electric current is applied. This video explains how to make a SMA muscle.

Video

Preparation: 0 min
Process time: 30 min

Materials

Tools and Equipments

  • Crimp terminal
  • Tape measure
  • Nipper
  • Pliers
  • Tweezers
  • Soldering iron

 

 

Directions

1Cutting

Cut the two pieces of wire in the length of 50cm. Also cut the SMA in the length of 2cm.

2Separate the SMA

The SMA is usually wrapped around a cable. Gently separate the SMA form the cable.

3Tie

Tie the wire to the SMA.

4Tighten

Pass the crimp terminal over the tied wire and press it strongly with pliers

5Tie the other side

Repeat the same process.

 

6Both sides are done

The SMA cable is connected to the wires.

7Connect the pins

In order to make it easier to handle, we will connect pins. Tie the wire to a pin.

8Soldering

Solder them together.

9Coat

Cover it with a heat shrinkable sleeve.

10Done

Connect another pin to the other end of the SMA’s wire.

11Check

Briefly connect power. The SMA will shrink when electricity is applied.

 
 
 

Other recipes

  • Application : Caterpillar Robot
  • more recipes using SMA : Origami Robot (coming soon!)

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