cuts on a copper disc!

[mossboss]

Mate If you think that this may be a profitable excersise I would strongly recomend you think through it again
I would not be spending any money on a diamond stylus unles it comes from a DMM which at the £2,000.00 each not many would jump at it
On another point I am suggesting the higher speed as it was at 400 RPM that masters were cut back for the CD4 early Video disc machine discs
I spend a considerable amount of time studying the patents RCA had for that early video system as it was in reality designed and build around vinyl record technology from cutting all the way to play back as well as the cutting of the masters on copper just like DMM
The cutting lathe was spinning and cutting at 400 RPM This was determined as the best speed which resulted in the smoothest cut by the diamond bit/stylus cutting the copper master,
Argh well the best finish of the hill and dale style track
So here you are Sir
Please dont think that PCB is some marvel that would solve anything for you In actual fact it will most likely open a can of worms but it is fun experimenting with it Thats for sure He He
Cheers

[petermontg]

Mate If you think that this may be a profitable excersise I would strongly recomend you think through it again
I would not be spending any money on a diamond stylus unles it comes from a DMM which at the £2,000.00 each not many would jump at it
On another point I am suggesting the higher speed as it was at 400 RPM that masters were cut back for the CD4 early Video disc machine discs
I spend a considerable amount of time studying the patents RCA had for that early video system as it was in reality designed and build around vinyl record technology from cutting all the way to play back as well as the cutting of the masters on copper just like DMM
The cutting lathe was spinning and cutting at 400 RPM This was determined as the best speed which resulted in the smoothest cut by the diamond bit/stylus cutting the copper master,
Argh well the best finish of the hill and dale style track
So here you are Sir
Please dont think that PCB is some marvel that would solve anything for you In actual fact it will most likely open a can of worms but it is fun experimenting with it Thats for sure He He
Cheers

Yes yes.. i am well aware that what i am doing has very little financial gain and plenty pitfalls. The way i look at it is "everybody has to start somewhere and somehow"

What my previous post was meant to portray is that 9/10 of times it will end up costing money from my pocket to cut.

Could the vms 80 cut at 400rpm. Am liking this neumann more and more everyday. wheres that check book

[andybee]

no man, a vms 80 can´t cut at 400 RPM!
if you take a look at the rca lathe, you see, it is a very special
construction, I think, a bunch of very experienced engeneers
have developed this system .... nothing to do at home...



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[mossboss]

That is the beast Two only ever made one went into the factory the other remained at the development lab/shop
There was quite a lot of movies put out on these vinyl record cd4 so it did cut a lot of masters
It run on air bearings as well as that it was isolated from the floor to stop vibrations it also had a number of other features that where picked from various cutting lathes around as it really was new ground even for a process that was around a while by than
There was, still there really, a forum of ex RCA workers which was quite active all about this early video player but it's getting less and less active now
A lot of information was there about this machine as well as other systems that was in use there
It was all scarped and into the landfill or scrap metal dealers Nice hey Keep those Presto's going guys
Cheers