Bluetooth Speaker by Arandez Bon

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I always wanted to have a bluetooth speaker. I thought, why not design and build one. So here it is. This bluetooth speaker contains two rechargeable 18650 battery's, so you have lots of listening fun without plugging it in your walloutlet. The front, back and body need support. I printed these parts with PLA and 0.2mm with 15% infill. The seal rings (you need two of them) have i printed with ninjafex. Update 19-12-2017: I've noticed, when playing on high volume (above in the red region of your phone volume) the connection will be lost or the device will shut down. (failsave) I think this has to do with the step up module. The step up module can't keep up stepping up the power for the amplifier board. I'm convinced the device can be much louder! Does anyone have a idea? Parts you need for the build: Brass inserts 24 pieces https://www.aliexpress.com/item/100Pcs-M3x5mm-L-5mm-OD-Metric-Threaded-Brass-Knurl-Round-Insert-Nuts-LXM/32693221350.html?spm=a2g0s.9042311.0.0.CsvCxE LED base holder 3 pieces https://www.aliexpress.com/item/Hot-Sale-10pcs-3MM-Round-Chrome-Metal-LED-Light-Lamp-Emitting-Diode-Bezel-Lamp-Base-Holder/32808747894.html?spm=a2g0s.9042311.0.0.CsvCxE 1Pair Black 78x41mm Bass Speaker Passive Radiator Auxiliary Bass Rubber Vibration Plate https://www.aliexpress.com/item/1Pair-Black-78x41mm-Bass-Speaker-Passive-Radiator-Auxiliary-Bass-Rubber-Vibration-Plate/32785907739.html?spm=a2g0s.9042311.0.0.M8oXrZ m3x10 24 pieces…