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Acoustic Tractor Beam - Enclosure

by Nleinad Jan 7, 2018
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Hey Nleinad, thank you for the model!
I build my own variant based on your design and noticed that I run into thermal issues. The driver is getting quiet hot when driving the transducer with 24V p-p and even with 12V p-p. Did you add ventilation or do you use the device no longer than 10 min?

Awesome, please share some photos! No, to be honest I have only used the decive for short periods at a time and seldom at full power. I guess that some small ventilation holes could be drilled in suitable places, but unfortunately that was not planned in the design, being such a tight fit as it is. Also, feel free to share any remixes and tips! // Best Regards Daniel Nilsson

I created a remix page and will fill it out in the next days :) You can have a look at the files already if you like

Best regards Matthias

Hi im going to start this experiment but i dont understand, how do you done the bowl?

The file Bowl.STL can be found on Asier Marzo page, see the the link in the description, among arduino code and schematics. He also describes how he created the device, step by step. // Best regards Daniel Nilsson

I see that for the transducer they sell an emitter and a receiver, did you only use the transmitters?

I had the same question when building this, but apparently they are basically the same. So I used both od them (at random), since it's cheaper to buy them as a pair and you need quite a lot for this build. Maybe this lowered the efficiency of the device, I don't know, but it worked. // Best regards Daniel Nilsson

Ps. But be sure to have them connected with the right polarity, as described in the instructions (see link).

Did it worked? Do you recommend doing it?

Yes it does, as can be seen in one of the pictures. Follow the simple instructions in the link and you can build one too. I recommend that you try getting the system working before you integrate it in this enclosure, but keep in mind that it is a really tight fit. So modify the bowl and other component before soldering everything together. Also, if you have trouble getting the same components as I used in my build, you can modify the enclosure in the source file (using Rhinoceros 4.0 or higher) before printing, to fit your electronics.