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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
vocalpoint OP
10 posts
 
This is an erroneous assumption, IMO. I'm certain if you email Yip he will verify that he does not scribe the mirror's hash lines according to the headshell."

Tvad,

Thanks again for all the updates. I do appreciate your time. Regarding the Mint "process"...it's effective length first (ensuring the headshell "front" is exactly parallel to the cartridge head - Yip's words) and then null points...Inner first and then outer.

It's odd that you seem to think it's normal to have a slight rotation of the body when Yips actual instructions consistently remind the use that the headshell front and the cart head should remain in parallel thruout the entire procedure.

You would think he would make some mention of the fact that if it occurs "in some cases - your cartridge head may not line up with the headshell front" and say that it's okay...but he does not.

I did drop Yip a line with all my comments and questions. It will probably end up being driver error by me...or maybe I did actually bend this thing enough for it to be noticeable.

I will get it figured one way or another.

Cheers!

VP
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srwooten's avatar
srwooten
694 posts
 
Efective length= distance from pivot point to STYLUS TIP. Where the headshell ends up means diddly.

To get your Mint alignment there is a lot of back-and-forth. Adjust you effective length inner and outer, then do your null point adjustment. Then check VTF. Repeat, then repeat. Keep repeating until ALL the points are correct and your VTF is correct. Your cart being perfectly straight in your headshell is NOT one of the perimeters to worry about to get your alignment correct. This is also why I believe you are not happy with your results. Use the MINT Luke...Use the Mint.
ehaller
98 posts
 
VP, if you were able to get the stylus tip to hit the arc at the inner and outer points, (setting overhang) then the tip should also hit the center of the null points. Make sure the protractor doesn't move from this point on. Now all you need to do is twist the cart to get the cantilever perfectly aligned between the crosshairs. While I have not personally used a MintLp protractor, I have used arc protractors to set up a cart. As others have stated, don't worry about the headshell or cart body, it's all about the cantilever and stylus.
clabe
101 posts
 
Vocalpoint!
I experienced exactly the same problem with my PC-1 using Mint Protractor and was as surprised as You.
But the sound was definitely improved afterwards, micro details, soundstage, blacker background ....just about everything I can think of.
But it took me 2-3 days of finicky.

Good Luck!
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