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The Phonocut

Interesting, but the website blurb intimates the machine is already produced whilst the photo says 'our vision of...' and the FAQ link leads nowhere.

This another MDAC 2?
 
Nothing new. In my far off youth there were booths that would record you on to a 45 instantly.
 
In the past fifteen years there have been a few real consumer-level vinyl cutters:

https://www.google.com/search?client=firefox-b-d&q=kingston+vinyl+cutter

https://www.google.com/search?clien...hUKEwi86Ky1yp3lAhXP2qQKHZKVCocQ4dUDCAo&uact=5

kingston_dubplatecutter.jpg


vestax_vrx-2000.jpg
 
If a cutting head can make a lateral transit of then record while cutting the groove, why don't tonearms do the same by now while tracking the groove?

A lot would be solved with lateral tracking tonearms.

Best wishes from George
 
The cutter cuts as it goes, defining the rate of inward spiral, usually varying this with loudness.

The replay arm has to follow the variations in the radius and change in radial rate *without* applying more than a tiny force to the groove. If it applies more than a tiny amount, it will 'cut a new groove' rather than follow the one already on the disc.

Thus 'linear tracking' systems for replay have to operate with a *very* delicate sensitivity to following the existing groove. Whereas the cutter simply ploughs where it decides over a blank start surface.

Linear tracking has been done for replay. But it isn't easy (read cheap and unfussy).
 


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