NTX Gramophone / Vinyl Record Player

On February 2006, I puchased my first LEGO Mindstorms. On January 2007, I purchased my LEGO Mindstorms NTX, so I started to create some proyects with it. I found NTX makes easier to create projects using fewer parts. Here is my first NTX project:

 

NTX Gramophone / Vinyl Record Player

Here are the visual-instructions to make your own Lego NTX Gramophone (only if you are rich or your parents are wealthy enough to buy one)

NTX Gramophone / Vinyl Record Player

NTX Gramophone / Vinyl Record Player

 Parts needed & making the base.


 

NTX Gramophone / Vinyl Record Player

NTX Gramophone / Vinyl Record Player

Assembling the motor and connecting it to the NTX.


 

NTX Gramophone / Vinyl Record Player

NTX Gramophone / Vinyl Record Player

The turntable and the arm is assembled. The "turntable" is one of the big wheels that comes with Mindstorms RCX, not NTX.


 

NTX Gramophone / Vinyl Record Player

NTX Gramophone / Vinyl Record Player

The Gramophone almost ready. Detail of the arm assembled with the "speaker & amplifier" best know as a coffee cup.

The cup picks up the sound from the disk using a pin, a plastic cup works fine but a coffee cup have better sound quality. A bigger cup amplifies better the sound. An small cup amplifies only the high-frecuency sounds.

 

NTX Gramophone / Vinyl Record Player

NTX Gramophone / Vinyl Record Player

The Gramophone is ready. I have some old vinyl disk that I enjoy to listen with it. I even have a recording when the man reached the moon.

The motor drives directly the disk. The power for the motor should be set at 25%, it makes the vinyl disk to spin approximately 33 1/2 RPM. Here is a video of my home-made gramophone:



By the way, I'm not related with LEGO on any way. LEGO, NTX, RCX, MINDSTORMS are trademarks that belongs to THE LEGO GROUP. Also, I would like to mention it destroys old vinyl disk. Do not build this project.

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