Anyone "Handy" interested in a DIY Turntable Project?

Discussion in 'DIY Discussion' started by Uncle Ants, Feb 12, 2006.

  1. Uncle Ants

    zanash

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    Just had a scoot round the web it seems there made of tin ?..but there relatively cheep and you could easily get half a kilo if you wanted. Being round they will find there own level and self stack..and vibrations will try to move the balls as it passes though converting to heat so the theory goes.
     
    zanash, Apr 25, 2006
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  2. Uncle Ants

    penance Arrogant Cock

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    You can buy genuine lead shot from diving shops, normally in 1 kilo nylon bags.
     
    penance, Apr 25, 2006
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  3. Uncle Ants

    zanash

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    I was trying to be environmental!
     
    zanash, Apr 25, 2006
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  4. Uncle Ants

    penance Arrogant Cock

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    It is enviromental, so long as you dont chuck in a water supply ;)
     
    penance, Apr 25, 2006
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  5. Uncle Ants

    zanash

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    or lick your fingures after touching the TT
     
    zanash, Apr 26, 2006
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  6. Uncle Ants

    bottleneck talks a load of rubbish

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    if anybody is after a platter from a gyrodec, let me know.

    I still have it from when I upgraded to an Orbe platter a few years ago.
     
    bottleneck, Apr 26, 2006
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  7. Uncle Ants

    granville

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    granville, Apr 26, 2006
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  8. Uncle Ants

    Paul Dimaline

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    A simple version here, based on one of my "dream turntables", here..

    I personally think the idea is sound, nice and simple, although a pocket of lead could act as a means of converting any energy (into heat). Would there be that much energy in a plinth of that size and weight? I would doubt it.

    Have you thought of using lead sheet as part of the constrained layer?
     
    Paul Dimaline, Apr 26, 2006
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  9. Uncle Ants

    granville

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    I had wanted to use a single sheet of metal about 9 - 10mm thick, however the cost and difficulty of working with this has lead (ha ha) me along the path of laminating several 3mm stainless sheets. Using lead sheet in the midle layer would be an excellent way of damping the stainless sheets without compromising the design.

    I like the look of the dps's Paul, very slick.

    Very impressed with your handywork on the turntable, looks very nice. :) How have you managed to get over the problem with the sub-platter / platter :confused: How is the motor mounted within the plinth ?
     
    granville, Apr 27, 2006
    #89
  10. Uncle Ants

    zanash

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    You need to be able to reduce transmited vibration, into through and out of the plinth. There was a very exotic isolation platform of a few years back that used the principle of moving layer made of small balls....this recieved good reviews at the time.

    Adding steel IMO is a retrograde step, but I'm not doing the build !

    The lead sheet is a good idea, if you go down the steel route. Maybe a copper grounded blanket will act as a faraday cage if you generate any stray fields. It would not need to be thick either, but would need to enclose the constrained layers to be effective.
     
    zanash, Apr 27, 2006
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  11. Uncle Ants

    Uncle Ants In Recordeo Speramus

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    No flames from this direction, it makes sense, though I must say if we can avoid steel and it can be done cheaply then I'm all for it. To be honest I don't know whether there would be any issues with stray magnetic fields or not ... wouldn't want to be tempting fate though
     
    Uncle Ants, Apr 28, 2006
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  12. Uncle Ants

    granville

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    Have you sent me any bits yet ?

    awaiting parts to start cutting sample panels
     
    granville, May 4, 2006
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  13. Uncle Ants

    Uncle Ants In Recordeo Speramus

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    My apologies Granville. I'll get it out tomorrow. Should be with you Monday or Tuesday. Been busy with the business.
     
    Uncle Ants, May 4, 2006
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  14. Uncle Ants

    Uncle Ants In Recordeo Speramus

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    Hi Granville,

    All the bits are boxed and the courier booked. All things going well. Should be with you on Monday

    Tony

    PS. Courier collected Friday PM, so with you Monday
     
    Last edited by a moderator: May 7, 2006
    Uncle Ants, May 5, 2006
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  15. Uncle Ants

    granville

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    bits arrived, in good condition:) I'll have a proper look later.
     
    granville, May 8, 2006
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  16. Uncle Ants

    Uncle Ants In Recordeo Speramus

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    Good news.
     
    Uncle Ants, May 8, 2006
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  17. Uncle Ants

    Uncle Ants In Recordeo Speramus

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    ey up Granville - did you get a chance to look at the bag o bits yet?
     
    Uncle Ants, May 19, 2006
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  18. Uncle Ants

    granville

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    Yes indeed, will post thoughts at a later date. Sorry for delay been feeling a bit rough of late :(
    Have sourced some stainless, yet to order, just wanted to check all systems are go :) more specific post to follow.
    Regards
     
    granville, May 20, 2006
    #98
  19. Uncle Ants

    granville

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    Hi Tony

    Now had the chance to take a good look at the bits.

    Acrylic platter looks very nice indeed. The bearing looks well made, very low friction and no discernable play. Shame the shaft is mounted into aluminium, I hope it was a decision based on solid reasoning rather than cost. The motor is impressive looking, I've not had it up and running but I guess you have.

    I have decided to go with the stainless steel rather than the aluminium, to keep the cost down I shall be laminating 2 pieces of 3mm stainless with some lead.
    I aim to get up around 9 - 12mm thick for the bearing mount, depending on your feet. You need to let me have dimensions of your final choice or the actual feet.

    I will also cut some trial sheets of ply and make a mock up of the fist half of the plinth.

    Do you have a source of sorbathane sheet ? around 6 - 10mm thick would be good.


    I'll post info and pics as I start to work on it.

    Let me know if you have any issues re the above.

    Regards

    Granville
     
    granville, May 22, 2006
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  20. Uncle Ants

    Uncle Ants In Recordeo Speramus

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    Granville I don't have a source of sheet sorbothane (though one might prove very handy for all kinds of reasons).

    Does any else here know of a UK source - googling didn't seem to help. All I get is a load of stuff fpor sorbothane insrets for sports shoes.
     
    Uncle Ants, May 22, 2006
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