Introduction: Mini Vinyl Record Player Turntable - Spins and Plays Music

Mini Vinyl Record Player. The record spins and your chosen music plays! Uses various soldered components and 3D printing.

Supplies

  1. 3D Printed parts found at: Mini Vinyl Record Player - Movement & Sound by BrainJar - MakerWorld
  2. A DFPlayer MP3 module.
  3. An SD card (32gb max)
  4. An N20 motor, approx. 16 rpm at 3V (or 30 rpm at 6V etc). See pictures. I recommend that you use one with the shaft at a right angle (left on picture) which means a smaller box can be used and everything fits better, but it is also possible to use one where the shaft is in line with the motor body (right on picture).
  5. A limit switch with a 28mm lever.
  6. A 3xAAA battery holder
  7. A small speaker as pictured – I use the 4 Ohm 3W ones.
  8. Striboard to solder to.
  9. Jumper wires for the stripboard.
  10. Wire (I use 20-24 AWG). You will need 4 lengths of approx. 80mm each.
  11. Optional:50mm diameter toy vinyl records.There is one to 3D print on the third plate but the ones you can buy look a bit better in my opinion.
  12. Soldering iron, solder etc.
  13. Glue
  14. Double sided sticky foam pads (approx. 10mm square work well)

Step 1:

  1. Cut a piece of stripboard 12 connected holes wide and 10 unconnected holes high.
  2. Score down the middle to break the connections so you have 6 connected holes on each side.
  3. Fit the DFPlayer to the stripboard and then solder everything as per the diagram and picture. The wires need to be approx. 80mm.


Step 2:

Load your MP3 onto the SD card, with the file name “001” and check that it works by pressing the limit switch down. You may need to use a website like https://mp3cut.net/change-volume to reduce the volume.

Insert the SD card into the DFPlayer

Step 3:

3D print either the first or second plate (depending on your choice of motor) and the third plate: Mini Vinyl Record Player - Movement & Sound by BrainJar - MakerWorld

Remove any supports, including the small support on the inside of the lid.

Step 4:

Fit the grille into the front of the box from the inside, then stick the speaker to the inside of the grille.


Step 5:

Fit the battery pack and DFPlayer inside – the pictures show fitting them to the box for the right angle motor. Use the sticky foam pads to secure them.


Step 6:

Fit the motor and lever switch inside the lid as shown (pictures show the right angle motor but it’s similar for the straight motor).


Step 7:

Now fit the “tone arm” outside and the lever it attaches to inside the lid.

Fit the lid onto the top of the box.


Step 8:

Fit the platter onto the shaft of the motor (it has a D shaped shaft, so line the platter up correctly).

Print a label for the record and stick the record to the platter (I like to use sticky “glue dots).


Step 9:

  1. To make it work turn the tone arm and once the motor has started lift it up. It should stay in place and the music should play.
  2. To stop it again push the tone arm down and it should spring back.