DIY Turntable - This is how I spent my afternoon

[squeegy200]

I too was looking at adjustable cones for for the base. I saw some adjustable cones intended for speakers that would probably do nicely in this case. (source Madisound)

One other task related to the base that I've seen done is a pedestal filled with some vibration absorbing material. The cones would sit on a hard surface atop the pedestal that would contain some sort of inert material such as fine sand. The object is to isolate the base from vibration. The box full of sand would be easy enough to fabricate. Someone suggested to look into sand blasting material due to its uniform consistency.

One of the nice things about this tonearm, is that arm wands are available separately. I can mount a cartridge, align it, and balance it. Then if there is another cartridge I wish to try, they I can do the same on another arm wand. The wand slides off the end and I can slide on the other and resume playing LPs very quickly. Since each cartridge/wand is already setup, it enables me to compare cartridges in seconds.

[royphil345]

Pretty cool!!! Was sorta' wondering why you wanted to build your own table with parts from just one other table. Looks like you had some other stuff up your sleeve!!!

You could buy a sheet of sorbothane and sandwich it between the two plinth pieces. Attach other parts only to the top piece. ...Or not... Looks like you know what you're doing... LOL... Nice work so far!!!

[squeegy200]

Pretty cool!!! Was sorta' wondering why you wanted to build your own table with parts from just one other table. Looks like you had some other stuff up your sleeve!!!

You could buy a sheet of sorbothane and sandwich it between the two plinth pieces. Attach other parts only to the top piece. ...Or not... Looks like you know what you're doing... LOL... Nice work so far!!!

For this prototype I indeed used padded carpet tape to decouple the two plinths. It would be a waste to purchase something like sorbotane for this exercise.

I did mount the motor and platter bearing to the top plinth. However, this design would not isolate the two.

I could accomplish isolation if I made the motor outboard in its own containment, then I would have to use a different platter and a different diameter drive pulley on the motor. The platter would have to be driven by its outer most circumference.

Anyone know where to get nice acrylic platters?

That may also mean a longer spindle to accomodate thickness of a different platter. Any suggestions?