Eminent Technology ET-2 Tonearm Owners

SLAW - I use a #2 silk bead cord that lasts and lasts.

Thanks very much Slaw for the info.
your experiences with VPI and having to use a Cord type drive coincides with mine experiences from the past. IMO - The VPI decks (platter/bearing design) is not designed for use with thread /string. A heavier type cord is required. Sure you can use string/thread but it won't last long. This was the reason I asked.

Years ago in conversations with Mike at VPI his preference was to use the Spider brand Fishing Line.

Regarding your use of the word tension. IMO - tension is a relative term when it comes to TT's. For example.

My Verdier La Platine Granito was designed for thread/string. The thread is set up very loose. When properly set up you can actually flick at the thread as the music plays and there is no noticeable pitch change. The platter keeps going. In fact the motor which flickers as it turns the platter can also be shut off and on within a couple of seconds with the same result. The string/thread side load (tension) on the Verdier platter is very low. In comparison my previously modded TNT "did" need significantly more side load tension to work.

My experience has also been the smaller/thinner the string/thread in use, the greater, more explosive the sonics. This was one of the reasons that drove me to a final deck designed specifically for string/thread.

I am using
Guetermann s-303-800

Cheers

Ct0517: I think as far as our use of "tension" or "snaps" is mostly semantics. I appreciate your pointing out the (thread) above. (One never knows how or when or where some little, but very important piece of information, will come from). As you noted, I too found that the smaller gauge thread results in a more open/dynamic/pleasing sound.

I do remember our conversation regarding the Rek-O-Kut, at the time I thought I'd like to have a second TT/project. I've done so much with my current TT and am very pleased (to say the least) that I now have the extra parts (platter/bearing) and more importantly the (shop) equipment and greater knowledge to actually build a second one, that is, whenever I find the time to update my main table as I somewhat described earlier.

Here are some of my materials I've put together for the (main) project:

(a) The purple heart boards (will be sandwiched using a 3M epoxy in conjunction with 1/16" quasitropic carbon fiber sheet. The boards will be oriented at 180 degrees on each consecutive layer. I'm hoping to have a brass ring machined for the bearing interface that will be countersunk into the top board, to give me a great ground structure reference to work with. (There will be pockets drill for lead shot/epoxy).
(b) I'm kind of "up in the air" still on if I want this structure to be all there is for the platter base or have a separate/second/well damped lower base that will be isolated from the upper base by brass cones and possibly a mechanical fastening system that can be torqued for listening results.
(c) The new motor enclosure,thread tensioning pod and arm pod will be of similar construction, however I'm still wanting to have my motor enclosure top plate machined from air-craft aluminum.

I'd appreciate any thoughts here on my above project. I believe it is very well thought out but will welcome any valid concerns/thoughts/improvements.

Also, I'd like to thank the following people for their influence on this project:

Ct0157: for his early suggestion to have the arm & table separated
Frogman: for his insight on tonearm wire construction
Dgarretson: for supplying me with the bearing info needed for my future thread tensioning pod and the inspiration for my upcoming tonearm wire design

all of the above have been a great resource!

Slaw.
Many thanks for sharing the info on your compressor set up. Most interesting.

Also good luck with your TT project.
Just a comment on the idea of using lead shot. I have had mixed results using shot. Both in loose form and epoxy glued. In some installs it seems to create a smearing effect, however using one piece lead in sheet or rod form has always been positive. This provided it is not inserted into the energy loop we are trying to damp. That is, I have found it beneficial if the loop is laminated with lead.
As always YMMV

cheers.