Eminent Technology ET-2 Tonearm Owners

Once more am I in need of the knowledge of this community

I have decided to change turntable. My trusted TD125 is going into retirement and a Micro Seiki RX/RY/RS/RW 1500 is going to take over the job.
This is raising some issues. I'm now in need of some sort of drawing for a armboard to mounts the ET2.5 on.
I have access to knowledge and equipment to making the board board. (CDC -)) I even have it options to make it from whatever material that is optimal I guess titanium is a bit overkill. LOL

I've seen this done before on pictures I'm not sure which armboard that's been used. I have an option to use both one or two posts. I'm suspecting to post board will be the best 
My plan is to mounts and acrylic shield on the backside. 

I don't have access to special mounting tool (the Jigg) 
So if anybody have control over the geometric positioning that will be of great help
Also Interesting in hearing what kind of mounting, what kind of material that will be the best.
 I'm planning to put two more arms on so this is going to be a tree arm rigged Rx-1500 ;-)))))))))))))))))

Styrk

Styrk
is there a reason that you are not using an existing post with armboard on the RX 1500?

The ET 2.5 mounting plate spikes form a triangle that is larger than the hole in the armboard. So the armboard can be used. All that is needed is a longer mounting bolt, thick Fender washer and locking nylon bolt. All Stainless Steel, from the bolts store.

I have only ever used the straight line jig anywhere on the platter, to mount the ET tonearm. Pivoting armboards make this very easy. For a full plinth TT put the assembled tonearm on the plinth without spikes. One person holds and adjusts the positioning of ET tonearm, while the other person positions the straight line jig which is hooked on the spindle. Once the cart lines up - use painters tape around the mounting plate - on three sides You’re done.

As long as your Cartridge "Walks the Line".

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As far as dimensions for reference.

If you download the ET 2 Manual Pt. 2 from Bruce’ website - at the end are some mounting dimensions for Sota,Oracle and VPI.

Chris

In the end it's only a question of the correct mounting distance of the central mounting screw. Everything else can be adjusted by rotating the base around the central mounting screw, although it might look "non straight"... ;-)
Moderate arm length adjustments can still be made on the arm itself if necessary. Eg. to place the three base spikes more in the center of the arm board, not too close to the armboard edges.
The distance is 210.96mm if you have digital drill-fingers :-)

Well Chris with cant fine any armboard that is even close be able to get the distant right AX-3 is the closest but I think I either with touch the plate or get too great distant from the spindle. I know I can angle but then I lose option to mount all three arms. 

The problem is not to "walk the line" the problem is walk the line without interfering with the other arm's 

This mean that the onboard has long and curve around the plate. Then the mounting area has been big enough to support the base so all the spikes "hit something"  

The second part of the manual on Bruce' websites will be a great help

I'd hoped that somebody had a design ready for this so I don't have to redesign the whole thing from scratch. 

The problem with them RX1500 is that the mounting posts is so close to the plate 

The problem is not to "walk the line" the problem is walk the line without interfering with the other arm's

Styrk - Sounds like you are setting up for a tonearm "party"

:^0

You know - Years ago I tried different TT's with multiple tonearms on them. On three occasions. These were two full plinths and one setup using armpods. The party/experiments for me failed because I would only end up playing the ET2 after some comparisons. To those interested, I could only get the other tonearms to sound like the ET2 on two parts of the record; you know what I mean ..... when the presentation is really in focus, on those two points when a pivot arm alignment hits the sweet spot on a record. Hearing this phenomena using familiar LP's with these other tonearms, was interesting, in an audiophile way, but also the end of the road for them. Just saying. ¯\_(ツ)_/¯

In my record collection I do have many mono records - have found over 100 so far and counting , so the plan would be to put my second ET2 on the La Platine in a custom install someday, to listen to these records with a mono cart.  

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For anyone reading here that doesn't understand what we mean when we say "Walking the line".

See here.


It's a straight, but lonely road.

Walk the Line