From: Patent Tactics, George Brock-Nannestad
Lou Judson wrote:
> I had a similar thought at the recent mention of a "vinyl cutting
> lathe" - you canot cut on vinyl! Duh.
----- well, you can. You can cut most plastic materials and metals. It is a
matter of adjusting your lathe correctly, correct speed and angle. If your
speed is tied - as it is in recording, then your vertical cutting angle
becomes very critical. The best example of cutting metal is the DMM or Direct
Metal Mastering. However, in reality the cutting stylus chatters--at the
intended frequency of ca. 70kHz when you cut copper. I tried it on my 78rpm
lathe, using an original DMM master, and my steel cutting stylus chattered at
ca. 7kHz - completely useless under the circumstances. I have cut a CD with
> But in the Princeton piece, I have a feeling it is sloppy writing and
> editing, not the prof's words. But she should have been able to vet
> it and make corrections!
----- I agree completely!
> Lou Judson o Intuitive Audio
> On May 4, 2009, at 2:10 PM, George Brock-Nannestad wrote:
> > ----- now, has prof. Thompson really had access to a vinyl pressing
> > of this
> > record? Or is it just one more example of the sloppy notion that
> > everything
> > black must be vinyl - that's what our parents had.