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TriPlanar tonearm outward skating issue

Hi all,

I have been trying to research a solution to a recent issue with my TriPlanar VII UII tonearm that I bought  a couple years back.

The tonearm seems to want to skate outwards, even with zero anti skate applied and the weight removed from the little anti skate arm. It is evident at various settings of VTF, VTA, etc. The platter is very level and everything seems to be aligned OK. This outward skating force is very light in the outer grooves and becomes stronger as the cartridge gets closer to the end of a side. In fact, as it traces the lead-out grooves at the end of a side, the tonearm sometimes thrusts outwards across those grooves back into the last track. Very scary!

A visual check of the cantilever azimuth seems to confirm an outward pressure from the tonearm since the cantilever is leaning with the stylus end closer to the spindle.

I can’t seem to find any information online about this phenomenon.

Any insights and recommendations would appreciated.
shayes002
lewm
13,018 posts
 
Pretty cool, Raul.  I, and I am sure many others, will look forward to photos and further details about the design.  I am fully in sympathy with you as regards the length of time needed for projects like this, when one is not really "in the business".
Ag insider logo xs@2x
rauliruegas
13,050 posts
 
Dear @lewm : Rigth now I'm not sure if you or other audiophiles will see photos or design explanation through the internet because I'm thinking to do it very personal with each single gentleman that can be interested with. 
The tonearm already has a name: PCTI Limited Edition.

A kind of desiogn and targets as my tonearm is almost an " endless " audio item. Through the years I think that always existed something else to fulfill the targets.

Btw, it's a unique universal tonearm design  but not perfect ( nothing is in audio. ) and with its own trade-offs that have to be chhosed because the targets and " sacrifice " nothing against its quality performance ( neutral item. ) to mate with any cartridge at its best.


Regards and enjoy the MUSIC NOT DISTORTIONS,
R.


jsman
246 posts
 
Well guys FWIW I have a Triplanar VII UII and have had zero issues with this design flaw as some are calling it. In fact once setup my arm has been flawless!!! I absolutely love this arm and like it was stated earlier with a little care and common sense this arm just works!!!
lewm
13,018 posts
 
jsman, I well recall the very first time I heard a Triplanar, which must have been back in the early 90s.  That was the first time I appreciated that a tonearm could have a dramatic effect on the "sound" of a system, particularly the effect of correct azimuth adjustment.
jsman
246 posts
 
Lewm,
I couldn't agree with you more, and that's part of what's so good about this arm. The ability to adjust it 9 ways from Sunday!!!

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