Bluetooth Speaker

prusaprinters

<p>I always wanted to have a bluetooth speaker. I thought, why not design and build one. So here it is.</p> <p>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.</p> <p>I have heated up the brass knurls with a soldering iron. They slide right in the sockets. Be sure they are straight.</p> <h3>Print instructions</h3><p>Rafts:</p> <p>No</p> <p>Supports:</p> <p>Yes (only front plate)</p> <p>Resolution:</p> <p>0.2</p> <p>Infill:</p> <p>15%</p> <p>Parts you need for the build:</p> <p>Brass inserts 24 pieces<br/> <a href="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">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</a></p> <p>LED base holder 3 pieces<br/> <a href="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">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</a></p> <p>1Pair Black 78x41mm Bass Speaker Passive Radiator Auxiliary Bass Rubber Vibration Plate<br/> <a href="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">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</a></p> <p>m3x10 24 pieces<br/> <a href="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">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</a></p> <p>Electical parts:</p> <p>Wire<br/> <a href="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/Free-shipping-5M-10M-20M-2-Pin-18-20-22-AWG-Electric-Red-Black-Extension-Wire/32806955753.html?spm=a2g0s.9042311.0.0.pmSp9d</a></p> <p><a href="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">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</a></p> <p>Speaker drivers 2 pieces<br/> <a href="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">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</a></p> <p>Amplifier board 1 piece<br/> <a href="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">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</a></p> <p>Power switch 5V 1 piece<br/> <a href="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">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</a></p> <p>Bluetooth/charging and charging ready 3mm LED 3 pieces (blue, red, green)<br/> <a href="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">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</a></p> <p>Battery case holder 1 piece<br/> <a href="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">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</a></p> <p>LM2587 DC-DC Boost Converter 3-30V to 4-35V Step up Module 1 piece<br/> <a href="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">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</a></p> <p>5V 1A Micro USB 18650 Lithium Battery Charger 1 piece<br/> <a href="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">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</a></p> <p>Power Socket DC Block 2-Pin Wire With Nut 5.5X2.1 1 piece<br/> <a href="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">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</a></p> <p>5V 2A Power Supply EU plug AC 100V-240V Converter Adapter 1 piece<br/> <a href="https://www.aliexpress.com/item/5V-2A-Power-Supply-EU-plug-AC-100V-240V-Converter-Adapter/1059369926.html?spm=a2g0s.9042311.0.0.M8oXrZ">https://www.aliexpress.com/item/5V-2A-Power-Supply-EU-plug-AC-100V-240V-Converter-Adapter/1059369926.html?spm=a2g0s.9042311.0.0.M8oXrZ</a></p> <p>18650 rechargeable battery 2 pieces and some rubber feet</p> <p>Good luck building!</p>