DIY Turntable

PaulHilgeman · « **on:** 1 Dec 2006, 11:16 pm »

Some interesting pictures of something I have been working on with scrap wood and scrap time.

Paul

JoshK · « **Reply #1 on:** 1 Dec 2006, 11:44 pm »

Cool! What are you using for a motor? I am assuming your platter is made of bamboo? I'd love to try a bamboo platter, how did you spin it?

PaulHilgeman · « **Reply #2 on:** 2 Dec 2006, 12:20 am »

Hey Josh,

The motor will be a PWM (35Khz) controlled DC motor. I should hopefully be able to get it just perfect, I am going to have it set-up so that a single potentiometer can make EXTREMELY precise adjustments to the motor speed. The controller and motor will be in a single box sitting off to the left side.

As you can see, I am still using an old arm from a TT that was give to me a few months ago, but honestly I dont even own a ton of vinyl, so this is just to get me started. At least the table will be good (I think?!?!?!).

The platter was made with a router and a circle jig, then proceeding layers were sandwiched on and flush routed to match the perfect one. It turns for a REALLY long time. I need to decouple the table from the stand somehow, but I am not sure how yet. Bumping the rack really makes some big bass

.

-Paul

JoshK · « **Reply #3 on:** 2 Dec 2006, 12:28 am »

So you are going to use a direct drive system then I presume? What are you using for bearing?

I am not the expert in DIY table construction, so I am not sure what would make a good decoupler. It would depend on how you are driving the platter.

PaulHilgeman · « **Reply #4 on:** 2 Dec 2006, 03:13 am »

belt drive

xsb7244 · « **Reply #5 on:** 3 Jan 2007, 04:01 am »

is your turntable project finished? how does it sound?

PaulHilgeman · « **Reply #6 on:** 3 Jan 2007, 04:06 am »

No,

Too busy building speakers!!!

Developing a Ronin with a built in woofer amplifier, developing the Sentinel and piano black glossing my pair.

I have the motor controller working though, I just need to build a housing for the motor and tweak away.

-Paul

Russell Dawkins · « **Reply #7 on:** 3 Jan 2007, 07:26 am »

Quote from: PaulHilgeman on 2 Dec 2006, 12:20 am

I need to decouple the table from the stand somehow, but I am not sure how yet. Bumping the rack really makes some big bass .
-Paul

My brother had good results suspending his turntable from two ceiling hooks with surgical rubber tubing. Bungee cords would be equivalent but less elegant, possibly.