TriPlanar tonearm outward skating issue

@shayes002: I, too, have noticed a high amount of native anti-skate in my Triplanar VII uii. Nothing like yours but still quite a bit. The armboard and table are perfectly level, and all parameters are set with reliable tools. Tri sent me a lighter counterweight but it’s still too heavy. So I fabricated a lighter one still, comprised of two layers of blutak between three small titanium washers. Slides on, stays put, and allows for adequate fine-tuning of bias.

@cleeds: Good thought but the Triplanar has a captive cable fixed to the base, relieving stress on the arm from the cable.

wrm57

@cleeds: Good thought but the Triplanar has a captive cable fixed to the base, relieving stress on the arm from the cable.

Given the skating issue you described, this captive cable warrants close examination.

Yes, the wiring was my first thought, too. I've played around with the cable to no effect. Perhaps there is some torquing of the internal wiring within the arm tube/pivot, I don't know, but that's beyond my skill to check. And as I've been able to dial-in bias with the lighter weight, I see no need to send it back to Tri.

Dear @shayes002 @wrm57 : That problem is a real problem with your tonearms even that one of you " solved ". That's not a normal behavior.

Due to past experiences I had could be that the problem is in anti-skate mechanism where the thread in that mechanism does not " flows " in easy way ( to much friction. ) or that the thread is to short/length to achieve zero bias when in rest position.

Those 2 kind of problems I had in the past with tonearms and I can't be sure that is what's happening in the Triplanar. What I'm sure is that is unacceptable in any tonearm design. It's obvious that something is wrong and the best way to fix it is that both of you put in contact/touch with the today manufacturer.

Yes, I read that @wrm57 did it in the past and the manufacturer just did not fixed but it's him who has the responsability to do it.

Maybe there are other owners that has a " lighter " problem with out know it.

Normally that bias mechanism is " calculated " to start to works from the begin of the LP at outerward groove and goes higher in small force increments as the tonearm play at the inside grooves.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

rauliruegas

That problem is a real problem with your tonearms even that one of you " solved ". That's not a normal behavior.

I'm with Raul on this one. The OP treated the symptom of the pickup arm problem, not the root cause.