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Portable MP3 Player-Power Supply-USB Charger-Bluetooth Speaker

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Creation quality: 5.0/5 (1 vote)
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  • 19 downloads

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3D design format
STL Folder details Close
  • Airways.stl
  • Case_Body.stl
  • Case_Body_for_Hanger.stl
  • HangerP1.stl
  • HangerP2x4.stl
  • HangerP3-1.stl
  • HangerP3-2.stl
  • HangerP3-3.stl
  • HangerP3-4.stl
  • Lid.stl
  • LidV2.stl
  • Lid_For_Hanger.stl
  • Speaker_Grill.stl

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Publication date 2021-08-15 at 23:08
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Published to Thingiverse on: 2018-08-01 at 10:26
Design number 496054

3D printer file info

3D model description

UPDATE 03.08.2018:
To carry the player, I have added a holder part and so you should print the relevant case_body, lid parts to make your player more portable ;) You will need m3x4x3 brass inserts to assemble the whole body.

** BOM:**
* 3 inch 8 ohm 5 watt speakers:
https://www.aliexpress.com/item/2pcs-lot-8-ohm-5W-5Watt-78MM-3inch-Square-Speaker-Waterproof-Clear-Cone-Paper-Bright/32711943421.html
* PAM8403 2x5W amplifier with potentiometer:
https://www.aliexpress.com/store/product/Super-Mini-PAM8403-DC-5V-2-Channel-USB-Digital-Audio-Amplifier-Board-Module-2-3W-Volume/1678083_32753590149.html
* MP3 Decoder Board:
https://www.aliexpress.com/item/Wireless-Bluetooth-Audio-Decoder-Board-Module-MP3-Player-LED-MP3-decoder-board-FM-AUX-12V-USB/32862365042.html
* 3S BMS with balance:
https://www.aliexpress.com/store/product/3S-25A-lipo-lithium-Polymer-BMS-PCM-PCB-battery-protection-board-for-3-Packs-18650-Li/1916536_32806077657.html
* DC Power Jack:
https://www.aliexpress.com/item/Mayitr-10Pcs-DC-Power-Jack-Socket-Female-Panel-Mount-Connector-High-Quality-Black-DC-Power-Jack/32817267539.html
* Rocker Switch (2Pcs):
https://www.aliexpress.com/item/10Pcs-Ship-Type-Switch-15X21-KCD1-101-Red-2Pin-6A-250V-ON-OFF-15-21/32801619891.html
* USB Car Socket:
https://www.aliexpress.com/store/product/Dual-Usb-Car-Charger-Socket-5V-2-1A-1A-Waterproof-Motorcycle-Vehicle-Auto-Car-Power-Adapter/1394861_32756332405.html
* DC-DC Step Down Module (for amplifier to step down the voltage to 5V):
https://www.aliexpress.com/store/product/5PCS-Mini-Converter-Adjustable-DC-DC-Step-down-Supply-Module-replace-LM2596-new/1924864_32884127914.html
* Banana Socket:
https://www.aliexpress.com/item/10pcs-4mm-Fine-Copper-Banana-Sock-Audio-Speaker-Amplifier-Cable-Wire-Power-Screw-Sheath-Stretch-Flex/32822116945.html
* Bolts, nuts, spade terminal connectors (4.8mm, 6.3mm), M3 Brass inserts (M3x4x3mm), Cables

** Printing: **
Case needs support to print. Layer height is up to you. I have printed with PLA.

** Battery Pack:**
I have made a 3S5P li-ion battery pack with my spot welder. Also to charge and use it conveniently, you need a BMS with balance function. Here is my spot welder and probe to make the 18650 battery pack:
https://www.thingiverse.com/thing:3032060

** My cable connections**
One rocker switch powers the mp3 player and the step down converter (so the amplifier). Other switch powers the USB charger and voltmeter. Connections to the main battery is made by Wago Connector:
https://www.aliexpress.com/item/10pieces-PCT-213-PCT213-WAGO-222-413-Universal-Compact-Wire-Wiring-Connector-3-pin-Conductor-Terminal/32845923996.html
Charger socket and banana sockets are directly connected to the battery.

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