Cart not parallel after Mint LP alignment?


Howdy,

So after reading about 1000 paragraphs on how good the Mint LP Tractor is - I purchased one and had a marathon session yesterday with my new SL-1210 M5G, AT440MLa and Zupreme headshell...

After all was said and done - the alignment itself took 90 hard minutes - I am finding the cartridge sitting about 5-7 degrees "right" of center. The actual cantilever and stylus are about as dead on as I wanna go with it for now.

Now a comment and a question....

Question: Is this non-parallel result in the headshell normal? It's making me think I may have a bent cantilever or something.

Comment: I have run 10-12 sides thru the rig so far and I must say - I have not yet heard the "revelation" that others have described when comparing their alignments to other protractors or even the white Technics alignment gauge. The rig sounds good...but...what I am missing here.

I must temper the above by saying I have changed phono stages frequently in the last month as well...I was getting nicely familiar with a Bellari VP-130 and then moved that for a Cambridge which lasted less than a week and I now have a Moon LP3 with maybe 25 hours on it...Even my AT440MLa might have 40-50 hours on it as well....

I am thinking that a whole bunch of stuff might need to "burn" in before the system starts to really reveal itself.

But I am very concerned with the stylus/cantilever on the cart...even with all the moves the Mint required...I expected the cartridge to sit straight in the headshell...perhaps expecting too much?

Appreciate any feedback.

Cheers!

VP
vocalpoint
Dear Vocalpoint: +++++ " I "get" the fact that using the cantilever as a guide can indeed make the cart body sit a little canted. But then I took this theory a step further and asked myself - what if the stylus tip itself is not square to the cantilever? If that's the case - then this whole exercise of microscopic lineup can be pointless. " +++++

you are right.

The rule/myth that we have to make the cartridge alignment with the cantilever not the body is only a myth because what you point out and because like I posted when the cantilever deviation is not so " wide " and when the cartridge/cantilever is in " motion/dynamic status " ( playing a recording. ) against static status when is on the protractor the cantilever in motion is " centered " to the body so makes no sense to align the cantilever in the protractor but the cartridge body because in motion the cantilever is centered to the cartridge body.

So, all the people that made the cartridge alignment through the cantilever maybe are wrong because that alignment was made it in static cantilever/cartridge status instead that in real/true cartridge/cantilever position in motion.
Maybe is better to align in the " old " orthodox way: with the cartridge body instead cantilever.

In the other side that people likes the distortions that are hearing with the alignment today have does not means is right.

and don't forget that every time ( for the purist/perfeccionist that change every record side or every record track. ) you change VTA/SRA you have to re-align if you want to be where you was before the VTA/SRA change.

I think that we can but we can't be so perfeccionist on the subject ( just like with VTA/SRA ) because we need time to enjoy music, then we have to take some " average " accurate each one " roads " to make that: hear and enjoy the music, that IMHO is the main reason why we are " here "!!!!!

Regards and enjoy the music,
Raul.
Dear Raul, The other reason or the main reason VP's cartridge was not aligned to his headshell was because his MintLP protractor was designed for Stevenson geometry, whereas the tonearm on his Technics tt was designed for Technics geometry. So, even if he were to use the cartridge body as his guide, his cartridge would have ended up twisted with respect to the headshell. At least this is what I understood from reading his initial posts.

I have read elsewhere, on Vinyl Engine I think, that the Technics geometry gives no null points across the surface of the LP, and most think it is therefore better to use Stevenson, the closest of the standard choices, when aligning cartridges in the tonearm on the Technics SL series tts. I guess this is why Yip chose Stevenson.

By the way, do you really think a bent cantilever straightens itself out under dynamic conditions of playing an LP? Sometimes, maybe.
Dear Lewm: +++++ " do you really think a bent cantilever straightens itself out under dynamic conditions of playing an LP? " +++++

I don't think it I already tested on three different cartridges and that's what happen. Maybe not on all cartridges with all kind of deviation. So we have to test first than make the alignment.
If you have one why don't you try it and see for your self?

Regards and enjoy the music,
Raul.
Right now, I have no cartridges with "bent" cantilevers, I am happy to say, but it did occur to me that the forces that bend the cantilever in the first place (usually skating force in a pivoted tonearm) are either present or neutralized by anti-skate. If you apply sufficient anti-skate, I suppose the cantilever will move back to a neutral position during play. Sometimes I think also that if the cantilever mount has become that flexible in the lateral plane, the mount is not in good shape. Sorry, VP, this is off-topic I suppose.
Dear VP: We on the MM/MI long thread start/follow ( last 12 post there. ) your thread subject.
Could be interesting to read about. This is one of my posts there on the subject:

http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1200430667&openflup&2114&4#2114

Regards and enjoy the music,
Raul.