Chlovinka
I'm comletely with you about Teres bearing. Price is among the major considerations for wast majority of DIY-ers, to say least. I'd rather buy Rockport Sirius, having enough of money, I swear. IMHO, the goal is to build/buy the better components at given price point. To buy the Teres bearing at 240$ is the clever decision. Hard to beleve one can build something of equivalent quality for this money. Same point about Teres motor/controller. 320$ for the upgraded motor with no housing does not seem much. The base is another story: I build mine of bonded MDF layers, stuffed with lead - dead sonically inert. Another DIY bang for the backs is the Ladegaard linear air trucker: may be build at virtually no cost. I'm happy with mine: remarkable improvement above Project 6.9 arm (report is coming soon). The home breved platter is also worth trying - I'm planning to go for acrylic/aluminium sandwich, again filled with lead shots. Hope to stay within half of price of Teres lead filled platter.
Thus you can get the real high-end table for less than 1K$! One can say it is boring. To me, there is still enough place for non-conventional DIY design. In the end the music is most wanderful thing, is it?
I'm comletely with you about Teres bearing. Price is among the major considerations for wast majority of DIY-ers, to say least. I'd rather buy Rockport Sirius, having enough of money, I swear. IMHO, the goal is to build/buy the better components at given price point. To buy the Teres bearing at 240$ is the clever decision. Hard to beleve one can build something of equivalent quality for this money. Same point about Teres motor/controller. 320$ for the upgraded motor with no housing does not seem much. The base is another story: I build mine of bonded MDF layers, stuffed with lead - dead sonically inert. Another DIY bang for the backs is the Ladegaard linear air trucker: may be build at virtually no cost. I'm happy with mine: remarkable improvement above Project 6.9 arm (report is coming soon). The home breved platter is also worth trying - I'm planning to go for acrylic/aluminium sandwich, again filled with lead shots. Hope to stay within half of price of Teres lead filled platter.
Thus you can get the real high-end table for less than 1K$! One can say it is boring. To me, there is still enough place for non-conventional DIY design. In the end the music is most wanderful thing, is it?
fdegrove
As I did ask for all comments, I would apprieciate constructive ones, not inuendo. If my concept is not a"well thought out idea", please tell me where it is lacking.
This thread is for comming up with ideas, I have no idea if it would work, thats why I asked for comments!
Mark
As I did ask for all comments, I would apprieciate constructive ones, not inuendo. If my concept is not a"well thought out idea", please tell me where it is lacking.
This thread is for comming up with ideas, I have no idea if it would work, thats why I asked for comments!
Mark
AH I SEE WHAT YOU MEAN.
Hi Mark,
I think you misunderstood my remark.
It was meant for someone else,not you.
As in all communities we do suffer from the occasional troublemaker.
Other than that this is one big happy family.😉
Cheers,😎
Hi Mark,
I think you misunderstood my remark.
It was meant for someone else,not you.
As in all communities we do suffer from the occasional troublemaker.
Other than that this is one big happy family.😉
Cheers,😎
Inferred supposition apology accepted.
So, have I been taking too many drugs, or does the reverse bearing / hanging platter idea have merit?
And Compliments Of the Season to you all. Merry Listening for next year.
Mark - Enjoying a very hot festive season.
So, have I been taking too many drugs, or does the reverse bearing / hanging platter idea have merit?
And Compliments Of the Season to you all. Merry Listening for next year.
Mark - Enjoying a very hot festive season.
Regarding CNC machining: even better would be if you can get access to a very high speed mill (+30000 rpm) or if it can be spark eroded (by thread). These are methods used for high quality molding tools.
News flash!
I have my DIY TT running! (rotating that is, no arm mounted as yet so no music) And first impression is quite positive. It is just that the powersuppy I used seems to be a little on the light side and runs very hot.
Alas I won't be able to continue for a few weeks. Christmas holidays intefere 🙂
So, merry xmas to you all
I have my DIY TT running! (rotating that is, no arm mounted as yet so no music) And first impression is quite positive. It is just that the powersuppy I used seems to be a little on the light side and runs very hot.
Alas I won't be able to continue for a few weeks. Christmas holidays intefere 🙂
So, merry xmas to you all
ANALOGUE HEATING
Hello,
Good job,Peter.🙂
A merry X-mass to you too and enjoy the holidays.
Ciao,😉
Hello,
Good job,Peter.🙂
A merry X-mass to you too and enjoy the holidays.
Ciao,😉
Havoc,
Regarding spark eroding machines: I have seen those in some of the CNC tooling mags. Those puppys are pretty expensive aren't they?
Not exactly for hobby use. See if you can find someone making injection molds or so that is willing to do some parts. But it will very probably be a paid service.
Better is someone that does make his own metal stamping tools. He may have such a machine and it will not be in 100% use like in a mold shop.
Those machines cut metal with a 0.3mm thread of brass very precise and reasonably fast.
Better is someone that does make his own metal stamping tools. He may have such a machine and it will not be in 100% use like in a mold shop.
Those machines cut metal with a 0.3mm thread of brass very precise and reasonably fast.
Music has been played on the DIY TT!!!!!!!!!!!
It has taken some time but it works. And as far as I can tell it works very well!
I hear things my Thorens TD125 never delivered.
At the moment though, it is a bit difficult to give you a serious estimate as to what this thing can do because the rest of my system contains a few too many questionmarks. Especially phono and power amp aren't up to scratch at the moment. I have taken (non digital) pictures. As soon as they are processed I will put them up here.
Happy new year.
It has taken some time but it works. And as far as I can tell it works very well!
I hear things my Thorens TD125 never delivered. At the moment though, it is a bit difficult to give you a serious estimate as to what this thing can do because the rest of my system contains a few too many questionmarks. Especially phono and power amp aren't up to scratch at the moment. I have taken (non digital) pictures. As soon as they are processed I will put them up here.
Happy new year.
Check out my TT design idea
Hay guys, i have been working on a turntable design for some time that I intend to build in the future. Here is a picture and I will describe my design ideas.
I wanted the turntalbe to be very high quality and easy to set up and very immune from external vibrations. I also wanted it to be beautiful looking as a piece of art work. It is based on the Teres bearing system but is otherwise a different but meant to be relatively (if you have access to a machine shop) easy to build.
It is based on a direct drive motor AC permanent magnet moter which has no touching parts. My only concern is can I get the stray magnetic fields under control. The top part of the moter ring is a copper shield which is grounded. It is intended to keep the speed constant using platter mass and a weak moter so that electrical fields can be kept to a minimum.
The tone arm is an air bearing design with a wood and carbon fiber arm tube. I have not yet designed the VTA adjustment into the arm support but have a gerneral idea on how I am going to do it. The plinth rests on racketballs and sorbothane disks and then rollerball isolators and relies on heavy mass and stiffness to ward off internal and external vibrations.
Hay guys, i have been working on a turntable design for some time that I intend to build in the future. Here is a picture and I will describe my design ideas.
I wanted the turntalbe to be very high quality and easy to set up and very immune from external vibrations. I also wanted it to be beautiful looking as a piece of art work. It is based on the Teres bearing system but is otherwise a different but meant to be relatively (if you have access to a machine shop) easy to build.
It is based on a direct drive motor AC permanent magnet moter which has no touching parts. My only concern is can I get the stray magnetic fields under control. The top part of the moter ring is a copper shield which is grounded. It is intended to keep the speed constant using platter mass and a weak moter so that electrical fields can be kept to a minimum.
The tone arm is an air bearing design with a wood and carbon fiber arm tube. I have not yet designed the VTA adjustment into the arm support but have a gerneral idea on how I am going to do it. The plinth rests on racketballs and sorbothane disks and then rollerball isolators and relies on heavy mass and stiffness to ward off internal and external vibrations.
Attachments
Hi, This is very good looking!
Do you just have this picture, or do you have some more detaile available?
Do you just have this picture, or do you have some more detaile available?
No detailed 2D drawings yet
This turntable is still in the design phase for me as it will be some time before I can build it. I have more design work to do on the air arm support to allow for VTA adjustment. And Also on the motor. I put up the design to perhaps give some other DIY's some ideas. I would also like to build a passive/manual vacuum holddown for the record platter if it can be done with some kind of small manual pump such as was shown back in prior posts.
The motor uses 18 small electro-magnets that are wired in parallel and interact with 18 flexible permanent magnets that are attached to the inner recess of the platter.
To make the plinth cheaply but very well I am intending to mix sand or finely crushed and washed rock with general purpose epoxy resin and pour into a mold. Then the whole plinth will be coated with epoxy fiberglass to stiffen it up.
With the proper suspension tuning this TT should perform well for those who don't have the room or space to get a machinists surface plate to run thier TT on.
Cheers, Hezz
This turntable is still in the design phase for me as it will be some time before I can build it. I have more design work to do on the air arm support to allow for VTA adjustment. And Also on the motor. I put up the design to perhaps give some other DIY's some ideas. I would also like to build a passive/manual vacuum holddown for the record platter if it can be done with some kind of small manual pump such as was shown back in prior posts.
The motor uses 18 small electro-magnets that are wired in parallel and interact with 18 flexible permanent magnets that are attached to the inner recess of the platter.
To make the plinth cheaply but very well I am intending to mix sand or finely crushed and washed rock with general purpose epoxy resin and pour into a mold. Then the whole plinth will be coated with epoxy fiberglass to stiffen it up.
With the proper suspension tuning this TT should perform well for those who don't have the room or space to get a machinists surface plate to run thier TT on.
Cheers, Hezz
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