diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Analogue Source (http://www.diyaudio.com/forums/analogue-source/)
-   -   New DIY TT... almost finished...pics (http://www.diyaudio.com/forums/analogue-source/23019-new-diy-tt-almost-finished-pics.html)

Illusus 21st November 2003 03:45 AM

New DIY TT... almost finished...pics
 
2 Attachment(s)
I'm almost done my new TT, had it set up for first time to take measurements and thought I may as well take some pics. I won't go into full detail yet, too busy working on it.

The plinth is made of layers of mdf, delrin and baltic birch ply. It is filled with two bags of no.2 lead shot, sand and linseed oil. I used micrometer heads for levelling.

The platter is a rek-o-kut k-33h. I polished the spindle and bearing housing. The four holes in the platter are threaded to accept brass weights, still waiting on those and a ceramic ball and teflon thrust plate. The pic shows it dirty from handling.

The motor is an inverted pabst, again from a rek-o-kut. I really like this motor, very quiet, it's overbuilt, inverted design (the can spins, not the armature) creates a nice flywheel effect. A micrometer head allows for tilt adjustment. The case is made of 4" PVC pipe and (tempararily) HDF, alluminium top and bottom plate are in the works.

The arm board in the pic has yet to be painted, layered delrin and mdf. A Roksan tabriz arm is mounted for now, my ongoing Ladegaard project is in it's fourth stage of revision. I am designing an arm board that will allow the use of both arms.

The likeness to a Teres is totally unintentional, form followed function and it ended looking like that. The finish is by no means perfect, looking close one can tell the layers are there in places, a minor disappointment, I had limited time to work on this and will refinish it in spring when the weather is more accomodating.

Hope you guys like it. I can't wait to hear what it can do.

Bart G.

psarin 21st November 2003 04:18 AM

Great Work!
 
Almost exactly what I have been playing with - a Rek-O-Kut K-12 platter (mine is filled
with lead+oil). Unfortunately, that's all I've got so far. The plinth I am working on is triangular - I plan to mount 3 motors, one at each corner, and have the air-bearing arm stand off
on the back side.

Talking about motors, if you want to go the DC motor route, there's a guy on eBay who sells
surplus maxon motors. He has the motors used in the Teres for $9 each! You just tell
him the part number of the maxon motor (easy to look up from the online catalog) and he probably has'em. I've been working out a DC voltage controller
to drive three motors taking a lot of hints from the Teres project.

Let us know how it sounds!

Cheers -

P

ps: the guy on eBay who sells surplus Maxon motors is SEQUOIAGP@aol.com
No affiliation of mine (apart from having bought good motors from him).

Merijn 21st November 2003 12:03 PM

Looks awsome!

I wonder where I could find a rek-o-kut k-33h...(Let's Google...)
With this platter came the bearing too? Or have you made the bearing yourself?

Tazzy 21st November 2003 04:50 PM

Could have been a dutch inside joke that rek-o-kut.

Don't want to be banned again so I won't explain what it means ;-)

Illusus 23rd November 2003 01:46 AM

Merjin:

the platter came with the bearing. It's a nice robust, well polished bearing with a spiral channel cut in the shaft to bring oil to the top. They seem to appear on ebay quite often as complete turntables marked K-33 or N-33. Previously I used a bearing and platter from a Thorens TD-160, good quality but too small to add a heavy weight platter to without stress or worry. Good luck in your search.

Illusus 23rd November 2003 01:50 AM

Sorry for misspelling your name Merijn :ashamed:

Merijn 24th November 2003 09:09 AM

Quote:

Sorry for misspelling your name Merijn
No problem Illusus, even in my own language people ar spelling my name often wrong...

In my case, the reason for looking for another platter with bearing is also a TD160, but in my case the spindle has a really bad scratch on the bearingball. It is not mooving freely anymore and produces a lot of noise.

Rebuilding would be an option, but a homebrew TT is much more appealing :)

Since I have not been searching this forum, I'll start with that, but youve inspired me to proceed!

Illusus 25th November 2003 03:17 AM

Thank you.
Although I was planning on using it for a simple TT to give to a friend for Christmas,I may be persuaded into giving up my TD160 bearing, platter and motor. I like your enthusiasm.

fdegrove 25th November 2003 12:41 PM

Hi,

Quote:

but in my case the spindle has a really bad scratch on the bearingball. It is not mooving freely anymore and produces a lot of noise.
Have you tried looking for a replacement part?

Back when I had a 160 I added PTFE particles suspended in oil to the bearing assembly. (Slick 2000 as used for car engines)
It ran much better after that.

Cheers,;)

Merijn 26th November 2003 12:33 PM

Have been thinking of Slick 2000. But my Fiat Panda doesn't need it anymore after 20 years :)

Now I'll just have to try, I mean that's tweaking all about, right?

Illusus:
I really appreciate your willingness (hope this is ok english)! But I think the costs of shipping it to Europe would be pretty expensive, I guess. There have to be a good Thorens on this side of the globe, they are German made... I'll start E-baying right away.

Have to go to college now,


All times are GMT. The time now is 03:15 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio


Content Relevant URLs by vBSEO 3.3.2