Dear Kelly, But in my experiment, when I stick the EVM on the table with double side tape. The Feeling (vibration) on the table is even stronger than the the surface of the EVM. Moreover, when I touch the table far away from the EVM around 50cm, the feeling of touch (vibration) is even stronger. it seems that the constructive interference appears. I did try all the waveforms in the library but I don't think the feeling of touch is strong and obvious. That's why I would like to ask if you have a better waveform can suggest to us. Would you mind also suggest how to mount the EVM or the actuator to an object such that I can have better feeling of touch. Thanks a lot~ Best Regards, Tommy
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