Thingiverse
Coffee Exciter
door quantitativecafe
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These are parts I designed for a "Coffee Exciter". This uses a DAEX32EP-4 audio transducer to vibrate a portafilter basket containing ground coffee. The base holds the transducer and the basket holder is connected to the transducer with double sided tape.
You can find a few videos of tests using the Coffee Exciter here:
https://www.youtube.com/playlist?list=PLaeoR9mkxhhM8YNKw8KFQfipXrTcDUP2o
For these tests, the transducer is driven by a ZK-502H audio amplifier powered from a 12 VDC source. The audio is produced by a small Python script on my computer.
You can find a few videos of tests using the Coffee Exciter here:
https://www.youtube.com/playlist?list=PLaeoR9mkxhhM8YNKw8KFQfipXrTcDUP2o
For these tests, the transducer is driven by a ZK-502H audio amplifier powered from a 12 VDC source. The audio is produced by a small Python script on my computer.
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