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Arm board for SME 3009

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Arm board for SME 3009

Postby KlipschKid » 14 Sep 2017 05:55

Hi there,
I'm new the the forum and have a quick question about mounting my new-to-me SME tonearm.
First I did some searching but nothing gave me the answer I was looking for.
The tonearm is an SME 3009 improved and is going on a TD 124.
The question is....
Should the tonearm be mounted at an angle or parallel to the board?
I've seen both styles but not sure how to cut mine.
Are there and advantages/disadvantages of either way?
I got a template with the arm but have seen them mounted both ways.
Sorry if this has been asked but i'm at a stand still until I figure it out.
Thanks for your time guys.
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Re: Arm board for SME 3009

Postby riccardo » 14 Sep 2017 09:19

Ideally, SME tonearms should be mounted with longitudinal axis of their base plate pointing towards turntable spindle.
This will allow the maximum sliding capability of tonearm of about 2,5 cm.
If the tonearm's base plate is mounted parallel to the board this could partly restrict the possibilities to obtain the correct overhang.
To determine mounting position you have also to check that tonearm hole will not interfere with TD124's metal base.
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Re: Arm board for SME 3009

Postby KlipschKid » 14 Sep 2017 16:56

That's what I thought as well. The template aligns it that way. I will have to check on the chassis clearance to make sure nothing touches. I'm still curious why some are mounted straight on the board.....scratches head?
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Re: Arm board for SME 3009

Postby JaS » 14 Sep 2017 19:11

KlipschKid wrote:That's what I thought as well. The template aligns it that way. I will have to check on the chassis clearance to make sure nothing touches. I'm still curious why some are mounted straight on the board.....scratches head?

Because even mounted at another angle there is sufficient adjustment for any cartridge. On some turntables you don't have any choice but to cut the hole parallel to the sides of the plinth, but IME it works out fine, as long as you've cut the hole at the recommended distance and use the relevant protractor.
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Re: Arm board for SME 3009

Postby nat » 15 Sep 2017 00:00

On some tables or plinths, the rear of the counterweight or the stub itself may knock into the dustcover at some point in its rotation, or it might overhang the plinth itself and bump into the wall or side of shelf, or whatever. Then again, some people just like right angles and parallel lines more than they do random angles.
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Re: Arm board for SME 3009

Postby KlipschKid » 15 Sep 2017 02:43

I never thought about the dust cover...Thanks for all the help guys. I will let you know how it turns out and post a pic.
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Re: Arm board for SME 3009

Postby riccardo » 18 Sep 2017 09:05

Good luck!
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