Build your own acoustic tractor beam

Date:12 January 2017 Tags:, , ,

Interested in building your very own acoustic tractor beam? Well, if you can use a soldering iron with some skill, you might just be able to.

After building a single-sided acoustic tractor beam and co-authoring a paper published in Applied Physics Letters, researcher Asier Marzo has created a DIY tutorial that’s simple to follow. Watch the video above to see how it’s done. Also check out the full component and tool list below.

What you’ll need:


•    30 x 16mm transducers MCUSD16P40B12RO
•    1 x Arduino Nano
•    1 x L298N dual motor drive board
•    1 x converter DC-DC adjustable step-up
•    1 x 2S Lipo battery (7.4V) and charger
•    11 x M3 screws (6 millimetres) and M3 nuts
•    1 x piece of wood measuring 300 x 45 x 15 mm
•    1 x 3D-printed bowl
•    1 x small strip board
•    1 x switch
•    3 x breadboard buttons
•    Jumper wires
•    12AWG black and red wire
•    Expanded polystyrene beads for levitation (measuring between 1 and 4 millimetres diameter)
•    An acoustically transparent material: A metallic grid, very thin fabric or teabag paper.


•    A 3D-printer. Alternatively you can use an online 3D-printing service.
•    An oscilloscope with two probes.
•    A soldering iron, tin and flux.
•    Drill
•    Hot glue gun
•    Multimeter
•    Cable peeler
•    Screwdriver and pliers

Read more about Marzo’s acoustic tractor beam by clicking here.


Image and video credit: Asier Marzo

Source: ResearchGate, Instructables