Diamond stylus on tonearm cutting lathe possible?

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Diamond stylus on tonearm cutting lathe possible?

Unread postby boryo » Thu Sep 14, 2017 4:57 am

Hello trolls,
forgive me the newb question but is it possible to use a cutting styli on tonearm cutting lathe like Presto 75A for cutting instead of embossing? The head is 1C.
Something makes me think it's not possible but I'm not sure.
This is the styli I'm referring to: http://www.myshank.com/en/vanrock-fairchild-presto/117-diamond-stylus-462-p.html

Also any chance someone to post a sound clip of record that was cut with these old Prestos instead of embossed?

Thanks!
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Re: Diamond stylus on tonearm cutting lathe possible?

Unread postby timinbovey » Thu Sep 14, 2017 5:39 am

Of course. I would venture to say that literally millions of lacquer records have been cut on these machines over the past 50 years or so. They were really meant to cut records, not emboss them, although embossing was certainly a viable option.

There is a wide variety of cutting styli appropriate for these machines, from steel to stellite, to sapphire, ruby and yes, even diamond (note your link was for a "synthetic diamond").

You will find the sound quality of a cut record far superior to an embossed record.

This assumes you're cutting an appropriate disc, generally a lacquer or "acetate" coated disc, although there are other options as well.

I'm sure on Youtube you could find hundreds of cut Presto records being played.

Most commonly used cutters are, I'd say, sapphire or ruby.

Tim in Bovey
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Re: Diamond stylus on tonearm cutting lathe possible?

Unread postby boryo » Thu Sep 14, 2017 6:58 am

Hey Tim, thanks for your reply!

With this machine I will cut mainly lexan and myshank blanks. Will try laquer some day just for the feeling but I'm not that deep
If I'm correct lexan and myshanks are cut with diamond.
I know I put link to synth, I only chosen it because of the 50% more life as stated in the description, don't know any other differences now.

I've been searching a lot before decided to post here. Unfortunately on youtube I did not found anything much helpful on the sound quality, everyone seems to be embossing or audio is recorded from the camera's mic.
I will appreciate a lot if someone provide sound clip of mono CUT record.
Already heard some embossed examples from guys here which are ok to me, but I want to get the max out of this machine even if its just for one time.
This makes me think that maybe a stereo cutting head will also work? I hope so!
Of course, maybe with modification but this is another story and not for now...

Thanks,
Bob
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Re: Diamond stylus on tonearm cutting lathe possible?

Unread postby piaptk » Thu Sep 14, 2017 9:51 am

With Myshank diamond styli you will be cutting, NOT embossing. You will get better fidelity, but you will also have more difficulties with things like chip and stylus life. That machine is not very well set up for cutting diamond because you need vacuum, stylus heat, etc.

However, Kyle at Soniphone records uses one similar (the only person I know that uses diamond cutting styli on a swingarm lathe), so you might want to email him for some tips.
Always looking for anything Presto 6N: Feedscrews, Cutting Heads, accessories, etc.
SHORT RUN PLASTIC CUTS!!! http://www.LatheCuts.com
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