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In Reply to: Re: also .... posted by Aleksunder on September 11, 2006 at 10:32:50:
The stylus transcibing the groove has a mass, it also has a vtf. You want the counterweight's median mass to be at the plane of the diamond if you want to provide the least amount of vtf variation as the diamond moves vertically.Sorry if I sound know it all about this but I am designing my own tonearm right now and the cgi 3d 128 bit evaluations show any other counterweight option to be poor option.
Again it is the median mass of the counterweight that needs to be at the stylus plane. How you hang it there is up to you. I think a slung counterweight is a great option on many tonearms since you can create more median mass with a flat plate than a round offset counterweight.
I am sure Mark Kelly can give you the math on this since he is building a tonearm as well.
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Follow Ups
- Again this is simple..... - tubesforever 12:10:26 09/11/06 (24)
- I think you are wrong here. - NewStevo 15:18:32 09/11/06 (0)
- Re: Again this is simple..... - Aleksunder 13:02:00 09/11/06 (3)
- The lower you hang the mass the more it delays return to vtf - tubesforever 14:57:26 09/11/06 (0)
- Re: but to complicate things .... - Aleksunder 13:26:07 09/11/06 (1)
- I am modeling this at the moment. - tubesforever 15:07:51 09/11/06 (0)
- Re: Again - J.D. 12:30:58 09/11/06 (18)
- On a software platform called Alias, using a Unix 128 bit processor. - tubesforever 15:14:20 09/11/06 (17)
- Don't forget to patent the intellectual property as well. - powermatic 19:01:14 09/11/06 (1)
- I have a customer that just came back from Bejing..... - tubesforever 23:34:59 09/11/06 (0)
- By Alias I assume you mean Maya, as it has been called for some years? - raphsdad 17:13:31 09/11/06 (3)
- Maya is for cgi and movies, Alias was designed for manufacturing. - tubesforever 19:44:00 09/11/06 (2)
- Alias is a company. - raphsdad 19:56:09 09/11/06 (1)
- Re: Alias is a company. - tubesforever 23:25:52 09/11/06 (0)
- Yep, my Flying-squirrel-powered Space Shuttle is in the Patent-pending phase, too ....... - J.D. 16:55:52 09/11/06 (8)
- JD have I ever NOT built something I was talking about. - tubesforever 19:45:46 09/11/06 (7)
- actual pic from the testing lab - J.D. 20:11:41 09/11/06 (6)
- So.....JD....You are just jealous....... - tubesforever 23:29:51 09/11/06 (5)
- Re: Solution - J.D. 08:31:32 09/12/06 (4)
- JD your drugs are wearing off.....dose up a bit..... - tubesforever 00:13:50 09/13/06 (1)
- Deal - J.D. 11:01:10 09/13/06 (0)
- McSweeney's - OMalley 09:58:31 09/12/06 (1)
- practically an extended haiku ...... - J.D. 11:53:40 09/12/06 (0)
- I am familiar with Alias..... - vinyl-addict 16:45:00 09/11/06 (1)
- And I don't want my friend fired! - tubesforever 19:54:12 09/11/06 (0)