ld wrote:Obviously, line contact styli become blades, in the limit as minor radius becomes smaller and smaller.
Obviously? ld, is that you or someone has stolen your account?
How about the major radius? Do you prefer to be pricked with 100g of vertical force with a sharp pin or with a wide, sharp blade? Which one would you choose?
Yes, it's me
And, I still think this one appeals to common sense.
It's quite possibly why there is a practical lower limit as to minor radius. More to the point (!), a large major radius is required
to mitigate the effect of a smaller minor radius. So whether I'd prefer to be pricked with a spherical profile or a line contact profile....neither....my point is they appear to be devised to be about the same 'sharpness'.
But, since there is traceability advantage to smaller minor radii, a manufacturer might prefer a balance toward more wear/damage to take as much geometric advantage as possible. And then mitigate by pairing with a lower VTF suspension. So that's why few line contact tips are paired with higher VTF suspensions, i venture.
flavio81 wrote: Again, on the "pin vs blade" example, the indentation on your skin can be similar too.
Precisely. It seems to be arranged that way, for line contact versus spherical/biradial too.
flavio81 wrote:Audiophiles have lost all traces of manliness and are scared by any VTF over 2.0 gram.
Yes this factor cannot be ignored ! But if wear is adverse, and if one is into conspiracy theories, this would have been manipulated by the industry to to get line contact tips accepted for CD4 et seq
It's always good to see line contact styli in a suspension capable of higher VTF, IMO. It seems a fair endorsement that vinyl wear is generally very low. As I see it, wear is generally very low, irrespective of tip type. It's arranged to be that way, but that doesn't happen naturally though.
dlaloum wrote:Historical Fencing techniques against bladed weapons include grabbing the cutting edge ....
That was the Django Reinhardt school of fencing ?