#  Testing 

 



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####  Stretch Tester

 Here is a video showing the signal from a u-turn stitched stretch sensor on a stretchy surface undergoing some cycling.



 

 The tester is built based on a linear translation stage from Actobotics: [https://www.servocity.com/channel-slider-kit-a](/https:/www.servocity.com/channel-slider-kit-a)

 We 3D printed the white clamps for attaching soft materials to the Actobotics parts. The design files (.stl) are attached below.

####  Measuring Actuator Force and Temperature

 A 1-Newton spring scale and Fluke VT02 thermal imaging camera were used to monitor the temperature and force of actuators as they were powered from a DC supply at approximately 6V and 250 mA (1.25 W).

   ![Actuator Force](/sites/g/files/omnuum4601/files/styles/hwp_1_1__720x720_scale/public/srtsandbox/files/actuatorforce.jpg?itok=cQft4I9R)