Custom plinth

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Spinspin69

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Custom plinth
« on: 8 Apr 2025, 01:20 am »
Just wondering if anyone has made a custom plinth for their WTL?

I.Greyhound Fan

Re: Custom plinth
« Reply #1 on: 8 Apr 2025, 10:12 pm »
What does WTL stand for?  I made a custom plinth for my Thorens TD-145 turntable out of cocobolo wood, and it is just beautiful.

EkW

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Re: Custom plinth
« Reply #2 on: 8 Apr 2025, 10:14 pm »
WTL is Well Tempered Labs.  I don’t recall ever seeing a custom plinth but I would wager someone has made one.

I.Greyhound Fan

Re: Custom plinth
« Reply #3 on: 8 Apr 2025, 10:29 pm »
WTL is Well Tempered Labs.  I don’t recall ever seeing a custom plinth but I would wager someone has made one.

Thanks!

FullRangeMan

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Re: Custom plinth
« Reply #4 on: 9 Apr 2025, 01:21 am »
I could suggest 20 or 30mm in HDF or acrílic.
Acrílic dont need paint.

Spinspin69

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Re: Custom plinth
« Reply #5 on: 9 Apr 2025, 10:07 am »
I could suggest 20 or 30mm in HDF or acrílic.
Acrílic dont need paint.

I was thinking more along the lines of veneer rather than paint.

FullRangeMan

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Re: Custom plinth
« Reply #6 on: 9 Apr 2025, 05:59 pm »
I was thinking more along the lines of veneer rather than paint.
If you dont mind the corners finish it could a inexpensive option. Or you could made an effort and buy a real wood table. YMMV.

Spinspin69

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Re: Custom plinth
« Reply #7 on: 20 Apr 2025, 08:43 am »
If you dont mind the corners finish it could a inexpensive option. Or you could made an effort and buy a real wood table. YMMV.

The plan is to use birch ply layers for a height of 125 - 150mm.

Spinspin69

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Re: Custom plinth
« Reply #8 on: 20 Apr 2025, 08:44 am »
Speaking of which does anyone know how to remove the spindle cup and its external dimensions?

FullRangeMan

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Re: Custom plinth
« Reply #9 on: 21 Apr 2025, 02:22 am »
The plan is to use birch ply layers for a height of 125 - 150mm.
Hi mass and robust, looks a interesting idea.
« Last Edit: 22 Apr 2025, 12:48 am by FullRangeMan »

S Clark

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Re: Custom plinth
« Reply #10 on: 21 Apr 2025, 04:17 am »
The plan is to use birch ply layers for a height of 125 - 150mm.
I sandwiched Baltic Birch, MDF, lead, and baltic birch.  I drilled concentric 1/2" holes through the bottom three layers and filled with lead shot, then sandwiched and glued it all together.  Then finished it out in a Zebrawood veneer.  It holds a Technics SP-10II that is my mono rig.   

Spinspin69

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Re: Custom plinth
« Reply #11 on: 22 Apr 2025, 09:18 pm »
I sandwiched Baltic Birch, MDF, lead, and baltic birch.  I drilled concentric 1/2" holes through the bottom three layers and filled with lead shot, then sandwiched and glued it all together.  Then finished it out in a Zebrawood veneer.  It holds a Technics SP-10II that is my mono rig.
sounds interesting. I was thinking of sandwiching the ply, mdf and acrylic...I'm definitely going to use Bubinga Pomelle veneer...

/mp

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Re: Custom plinth
« Reply #12 on: 22 Apr 2025, 11:24 pm »
Internal layer of dampening material. I read in many places Mr. Firebaugh uses squash balls. It's my understanding the US importer recommends cork. I suspect mouse pad foam will work as well. It does underneath microphone stands. Try them all & more before finalizing the assembly. Trust your own ears.

Good luck,


BobM

Re: Custom plinth
« Reply #13 on: 23 Apr 2025, 12:06 pm »
Try looking into Corian. Lots of kitchen counter guys have cutouts from sink installations that can be turned into a plinth. Corian is dense and makes a great fairly inert platform. I've layered 2 together to make a nice 1.5" plinth for my TT. Looks great too.

FullRangeMan

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Re: Custom plinth
« Reply #14 on: 23 Apr 2025, 12:37 pm »
Looks it dont need finish also.

WGH

Re: Custom plinth
« Reply #15 on: 24 Apr 2025, 12:34 am »
I was thinking of sandwiching the ply, mdf and acrylic...

I would substitute Richlite for the acrylic, the material is very dense and naturally non-resonant. Richlite is made from layers of recycled cardboard or cellulose fiber and phenolic resin.
https://www.richlite.com/
 
The photo below showing the layers is from the sample kit, Richlite is impossible to break and would never look like this if you could break it.




Richlite is dense, a 6"x6" square of 1" Richlite will weigh 1.6 lbs.

My unscientific resonance test:
https://www.youtube.com/watch?v=SkSxH40x5SA


I used Richlite to dampen speaker cabinets and it worked very, very well.
https://www.audiocircle.com/index.php?topic=72808.msg683847#msg683847

The 3/4" and 1" Richlite pieces weighed an average of 1.25 lbs. each


Look for sink cutouts from countertop installers otherwise it can get expensive. Cutting Richlite requires a triple chip blade and a really powerful table saw, I used my 5hp, 3 phase, 12" Powermatic and it was slow going.

planet10

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Re: Custom plinth
« Reply #16 on: 24 Apr 2025, 05:35 pm »
It does look good. I haven’t yet used the samples i have.

dave

S Clark

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Re: Custom plinth
« Reply #17 on: 24 Apr 2025, 08:56 pm »
I would substitute Richlite for the acrylic, the material is very dense and naturally non-resonant. Richlite is made from layers of recycled cardboard or cellulose fiber and phenolic resin.


Look for sink cutouts from countertop installers otherwise it can get expensive. Cutting Richlite requires a triple chip blade and a really powerful table saw, I used my 5hp, 3 phase, 12" Powermatic and it was slow going.
Sounds great... except for needing professional tools to cut it.  That kinda makes it useless for the bulk of us. 

WGH

Re: Custom plinth
« Reply #18 on: 24 Apr 2025, 10:02 pm »
... except for needing professional tools to cut it.  That kinda makes it useless for the bulk of us.

I had a small custom woodworking shop that milled and cut material for hobbyists all the time. Tucson has Xerocraft with a fully stocked metal shop, wood shop, 3D printing station, & electronics section, where people can use shop space. You just need to get resourceful.

A turntable sandbox is still a viable solution that has worked since the invention of the turntable. Use squash balls cut in half as feet. No links - Google it. Easy to make, easy to veneer.

Turntable Isolating Rack - created through measurement
https://www.audiocircle.com/index.php?topic=106067.msg1085604#msg1085604
The feet used by the OP >Ebay Link<

Platform mods? What do you use to block resonances?
https://www.audiocircle.com/index.php?topic=180291.msg1898094#msg1898094


Try the Equipment Vibration Protectors from AV Room Service if nothing works. EVPs de-couple vibration transmission (>90% from 5 Hz. on up)
https://avroomservice.com/evp-2/