Uni-Protractor Set tonearm alignment

Regards, Mesael: Thanks for the link to "morsiani". The thought of skating forces increasing towards the spindle was not consistent with what little I understand about Newton's concept of centripital force.

Peace,

DT and Timeltel,
Given the nature of how the tracking angle changes over the course of the record (for any arm), I would expect the skating force to fall on its way inward and then start to rise again as it moves past the peak tracking distortion area between the null points. The changes in friction coefficient (which will, of course, depend on stylus shape) would affect this, as would any changes in VTF as the cart/arm track the record. Different AS methods should actually affect the VTF 'curve' (as a function of groove radius), as should the fact that the VTA/SRA angle will actually start to get steeper on the way back in. Kind of interesting to think about...

I am assuming that one's choice of alignment (or perhaps more particularly, the location on the record of the peak tracking error between the null points) will have some effect on how much skating force ceases to tail off in the last part of the record...

I've just given myself more stuff to muddle through, obviously...

Dear Timeltel& Mesael, Those are HUGE confusions I should think. On an 'blanco' LP or an LP without grooves one can
observe the acceleration of the arm toward the spindle if no antiskate is used. Ie the centripetal force as Timeltelt stated can be seen in action . The Morisiani story is the opposite one. Ergo it is logicaly as well as physicaly impossible for both to be true. However those
forces should be the basic one for all of us to understand.

Regards,

@Ct0517

Yes, I find my VPI 10.5i arm to be best without a twist in the cable as well.

Dear T_bone,
a correct calculated alignment curve - much to my regret ... ;-) ... - has practically almost zero influence on the skating force. Unless the alignment curve is really VERY bad and raises to astronomic values.
Cheers,
D.