Why not use an arc'ed lathe?

I can answer part of this.

The actual mechanics of doing a radial cut on a lathe is not that profound. The problem is that the cutting sylus is good for about 10 hours on the outside. Each stylus seems to be different from every other stylus. So when its time to replace it, the replacement part is simple. The setting up the cutterhead to work the way it did before is not. That might take a bit of work getting it right.

Now setting up so that its tangental is hard enough and its something you that have to do and get right. Once its right at any point on the LP surface its right anywhere else too.  Setting up a radial cutter means that you would have to insure that the stylus is set up exactly right at two points on the LP. That would be about 10 times trickier!

Maybe but true user friendly for we customers. Don't you think?

R.

Once its right at any point on the LP surface its right anywhere else too.

Sounds just like setting up my linear tracker. :^)

Setting up a radial cutter means that you would have to insure that the stylus is set up exactly right at two points on the LP. That would be about 10 times trickier!

Sounds just like setting up my pivot arm !

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thanks for sharing that info Atmasphere.

Sounds just like setting up my linear tracker. :^)
Sounds just like setting up my pivot arm !

Yes. Now imagine that the difficulty of doing so is 10 times greater and has to be done very 10 hours of use!

Atmasphere: So what?. We are the customers and needs always that any audio item be USER FRIENDLY, thing that almost never happens because manufacturers like you think on the " troubles " and not the customer benefits.

Anyway, perhaps that could be happen never. Maybe the wise idea is to late for it.

Regards and enjoy the music,
R.