Toy-Brick Tensile Tester

by SoftMatterPhysics, published

Toy-Brick Tensile Tester by SoftMatterPhysics Sep 21, 2016



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605Views 95Downloads Found in Physics & Astronomy


Be and Stay Creative...!

We present a toy-brick based tabletop tensometer for research and education.

What’s so great about it?
Easy to make and use

  • LEGO typical instructions make building the frame very easy
  • All building instructions laid out on this website
  • Open-Source
  • All parts are common and available from large distributors
  • In total the TTT can be built for around 700 EUR – significantly cheaper than a commercial solution
  • Easy to extend
  • Simple measurement solutions
  • A full graphic UI programmed in LabView controls the whole setup and analyzes the data
  • Measurement of stress/strain and resistance/strain progression
  • Evaluation of static material properties (Young’s modulus, Tear strength, Fracture…)
  • If you don’t need it any more, tear it apart and construct something even more awesome!

Key Parameters and Accuracy

  • Stretching velocity: 50-1300um/s
  • Tensile Force: +-10N, +-50N with an accuracy of 30mN and 150mN respectively
  • Resistance: 6 measurement ranges in order of magnitude from 0-1MOhm with and accuracy of 0.1% of the selected range
  • Sledge travelling distance: 30mm with an measurement accuracy of 100um

Project Plattform:

Publication in Advanced Science:


This work was partially supported by the Austrian Science Fund (FWFP22912-N20) and by the ERC Advanced Research Grant ”Soft-Map”

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