Bluetooth Speaker

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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 https://www.aliexpress.com/item/160PC-Metric-Thread-M3-Stainless-Steel-Hex-Bolt-Kit-304-Cap-Nut-Washer-Set-Screw/32794842281.html?spm=a2g0s.9042311.0.0.EMQ1jk Electical parts: Wire https://www.aliexpress.com/item/Free-shipping-5M-10M-20M-2-Pin-18-20-22-AWG-Electric-Red-Black-Extension-Wire/32806955753.html?spm=a2g0s.9042311.0.0.pmSp9d https://www.aliexpress.com/item/100m-UL-1007-28AWG-10-color-Mix-box-package-Electrical-Wire-Cable-Line-Airline-Copper-PCB/32740101895.html?spm=a2g0s.9042311.0.0.pmSp9d Speaker drivers 2 pieces https://www.aliexpress.com/item/2pcs-40mm-5W-10W-Full-frequency-bass-Bluetooth-wifi-Speaker-neodymium-hifi-free-shipping/32579541437.html?spm=a2g0s.9042311.0.0.pmSp9d Amplifier board 1 piece https://www.aliexpress.com/item/DC-5V-3-7V-6W-6W-Stereo-Bluetooth-Receiver-Amplifier-Board-Lithium-Battery-Powered-For-Speakers/32807976635.html?spm=a2g0s.9042311.0.0.kBgoBF Power switch 5V 1 piece https://www.aliexpress.com/item/5V-12V-220V-Latching-push-button-switch-locked-16mm-flat-head-fixed-Push-Button-waterproof-LED/32789351190.html?spm=a2g0s.9042311.0.0.CsvCxE Bluetooth/charging and charging ready 3mm LED 3 pieces (blue, red, green) https://www.aliexpress.com/item/New-Arrival-300pcs-Five-Colors-3mm-Round-Bright-Light-LED-Diode-Lamp-Assortment-kit-Red-Convenient/32725226668.html?spm=a2g0s.9042311.0.0.CsvCxE Battery case holder 1 piece https://www.aliexpress.com/item/EDT-2-piece-battery-storage-box-case-holder-for-2-x-18650-parallel-lithium-batteries/32716650716.html?spm=a2g0s.9042311.0.0.5KfgS2 LM2587 DC-DC Boost Converter 3-30V to 4-35V Step up Module 1 piece https://www.aliexpress.com/item/LM2587-DC-DC-Boost-Converter-3-30V-to-4-35V-Step-up-Power-Supply-Module-5A/32612862664.html?spm=a2g0s.9042311.0.0.5KfgS2 5V 1A Micro USB 18650 Lithium Battery Charger 1 piece https://www.aliexpress.com/item/20Pcs-lot-5V-1A-Micro-USB-18650-Lithium-Battery-Charging-Board-Charger-Module-Protection-Dual-Functions/32469596060.html?spm=a2g0s.9042311.0.0.5KfgS2 Power Socket DC Block 2-Pin Wire With Nut 5.5X2.1 1 piece https://www.aliexpress.com/item/Quality-Copper-DC-022B-DC-Power-Socket-DC-Block-2-Pin-Wire-With-Nut-5-5X2/32762835561.html?spm=a2g0s.9042311.0.0.dgxm8s 5V 2A Power Supply EU plug AC 100V-240V Converter Adapter 1 piece https://www.aliexpress.com/item/5V-2A-Power-Supply-EU-plug-AC-100V-240V-Converter-Adapter/1059369926.html?spm=a2g0s.9042311.0.0.M8oXrZ 18650 rechargeable battery 2 pieces and some rubber feet Good luck building!

Author:
arabon

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