#  Step 6: Plunge Wires 

 



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#### Prepare and Insert Wires

   ![step6-1.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/step6-1.jpg?itok=BZgL3otg) 

 

- Cut a length of thin electrical wire (i.e. 36 AWG). The length of wire needed depends on your application, here we use 15-20 cm.
- Strip the wire ends to expose 2-3 mm which will be inserted into the soft sensor.
- Grab the wire end with tweezers and push it into the soft sensor, following the path left by the syringe.
- Push it in until the wire comes in contact with the round EGaIn channel end.
- Repeat this process for the other channel end.

#### Test and Seal

   ![step6-3.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/step6-3.jpg?itok=UiibjcAP) 

 

- Touch a multimeter to both loose wire ends to make sure that the connection is intact.

   ![step6-4.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/step6-4.jpg?itok=ncBaWnO1) 

 

- Add Silpoxy to the area where the wire is inserted into the sensor, covering any exposed metal and making sure to coat a few mm of the wire as well.
- This seals the EGaIn in the sensor and prevents the wires from slipping out.

### Bibliography

Mengüç et al. (2013) [Soft Wearable Motion Sensing Suit for Lower Limb Biomechanics Measurements.](/publications/soft-wearable-motion-sensing-suit-lower-limb-biomechanics-measurements)

Mengüç et al. (To appear in 2014) [Wearable Soft Sensing Suit for Human Gait Measurement.](/publications/wearable-soft-sensing-suit-human-gait-measurement)

Miserez et al. (2008) [The Transition from Stiff to Compliant Materials in Squid Beaks.](/publications/transition-stiff-compliant-materials-squid-beaks)

Muth et al. (2014) [Embedded 3D Printing of Strain Sensors within Highly Stretchable Elastomers.](/publications/embedded-3d-printing-strain-sensors-within-highly-stretchable-elastomers)

Vogt, D. M., Park, Y. L., & Wood, R. J. (2013). [Design and Characterization of a Soft Multi-Axis Force Sensor Using Embedded Microfluidic Channels.](/publications/design-and-characterization-soft-multi-axis-force-sensor-using-embedded)

### Contributors

Yiğit Mengüç