Ted Kendall:

> A straight arm on a pivot does not mimic the way a record is cut.
> All modern lathes move the cutter along a radius of the disc. A
> straight arm without offset traces a deep arc which bears little
> relation to the cutter's path, hence the need for offset.

The straight line tangential tracking arm mimics perfectly well the actual
professional cutting head.

Best regards,

Goran Finnberg
The Mastering Room AB

E-mail: [log in to unmask]

Learn from the mistakes of others, you can never live long enough to
make them all yourself.    -   John Luther