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Owen Y

Our DIY Ultrasonic Record Cleaner

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(This discussion, has been migrated from @Sir Triode's Affordable Ultrasonic RCM from Poland thread.)

 

This project was inspired by @EV Cali's DIY machine & advice from biochemist guest110 on Audiokarma.

 

Based on the same 6L China-made Ultrasonic cleaner tank (avail on ebay.au), with a bit of engineering input, we rigged up a simple & affordable-to-manufacture prototype, using sheet stainless steel, a locally avail inexpensive rotisserie motor (same as @EV Cali's), a rod, spacers & a couple of record clamp nuts.  here's the prototype running.....

 

 

Cheers, Owen

http://darklanternforowen.wordpress.com/

Edited by Owen Y

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A bit more info:

 

 

Fluid mix:

For starters, I'm using a water + Triton X-100 detergent/surfactant concentrate.  (I haven't checked if this is avail downunder, mine came from USA via a pal).


Drying:

So far, in our low 20's C summer weather, using a water + detergent/surfactant mix, then air-drying is fast. (20-30 min?)

Plain water doesn't film over the vinyl & takes much longer to dry. .I have a vacuum RCM but have not bothered using it for drying after US cleaning.

Right now, I'm using just carbon-filtered (drinking) water.

 

Static:

Vinyl is a poor conductor but water is a good conductor, so simply rinsing will reduce static. Wiping a record, is not such a good thing, if you want to avoid static-electricity.  And I believe that it is good to use a non-ionic, neutral pH detergent for starters, to avoid residual static charge.

 

(There is also a theory that a thin residual film of detergent left on the vinyl, after cleaning, aids groove tracing - I have to say it certainly sounds that way, signif more dynamic range, more energy..... )

 

Cheers, Owen

http://darklanternforowen.wordpress.com/

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i bought 500ml triton x-100  in NZ just over a year ago.

so for a 0.1% mix what is your process @Owen Y ?

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Hi @rocl444 - I am avoiding alcohols for starters, so I do a 10% mix-down first as best as you can (it does not dissolve easily in water) - leave in frig overnight for it to dissolve - pretty much as per guest110's advice below:

 

Quote

....one easy method is to just mix a teaspoon of 100% Triton with a teaspoon of distilled water and work it in slowly to dissolve. Gradually keep adding more teaspoons of distilled water and mixing until a total of 9 teaspoons have been added (roughly a 10% detergent stock). I keep this 10% stock in a used dish soap bottle  You want a final concentration of detergent around 0.1 to 0.2% so this 10% stock gets diluted 50 to 100-fold in the final working wash solution.

 

Cheers, Owen

http://darklanternforowen.wordpress.com/

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As said, in order to make it economical (for us & any other semi-DIYers) we are going to laser-cut a small batch, rather than one-off fabricate.

If interested, there will be some postage & you will have to buy the cleaner (ebay.au A$172 - 253) & motor (Kogan A$25)..

 

The cleaner that I purchased:

http://www.ebay.com.au/itm/Digital-Ultrasonic-Cleaner-6L-Stainless-Steel-Heater-Timer-Industrial-Grade-6L-/302040010527

(Note - 240v version.)

 

Let me know or PM if you might like to join.

 

Cheers, Owen

http://darklanternforowen.wordpress.com/

Edited by Owen Y

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The baseplate comes in 3 pcs, with in-built nuts for super-easy assembly (just 4 screws, 1 allen key needed), attach the motor (3 screws), slide whole assembly onto the tank, done.
Load the records & spacers, insert into motor drive, drop into the tank.
Switch on motor, switch on tank, set timer, start.
(No heating.)

Cheers, Owen

http://darklanternforowen.wordpress.com/

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