cuts on a copper disc!

[pete_d]

check this a cut copper disc which has also been etched, looks great but no idea how it sounds

http://corporaterecords.biz/RecordWordPress/

Pete

[emorritt]

Hmmmm, never thought of trying printed circuit board material for cutting. Neat idea. Yeah, would love to hear an audio clip of the recorded side.

[Jccc]

Does anyone know what kind of cutting stylus is used for this? I would think its a diamond?

Those cuts look really cool.

[Corporate Records]

Hi, glad you like it. I just posted a sound clip. You can check it out here: www.corporaterecords.biz/Copper.wav . It's guitar and drums. It was cut with a sapphire stylus. This is just a prototype. The finished version will have flash memory circuitry built into it so that you can plug a usb cable directly into the record and download the songs!

[emorritt]

In the words of the immortal Bugs Bunny, "Oh Guinevere, now I've seen everything!"

[subkontrabob]

Hi, glad you like it. I just posted a sound clip. You can check it out here: www.corporaterecords.biz/Copper.wav . It's guitar and drums. It was cut with a sapphire stylus. This is just a prototype. The finished version will have flash memory circuitry built into it so that you can plug a usb cable directly into the record and download the songs!

now THAT'S awesome!!!!!

[blacknwhite]

The finished version will have flash memory circuitry built into it so that you can plug a usb cable directly into the record and download the songs!

GREAT idea!

[bancho]

wait... you cut copper with sapphire?

is (will be) this record for sale anywhere?

[Self-lather]

Hi, glad you like it. I just posted a sound clip. You can check it out here: www.corporaterecords.biz/Copper.wav . It's guitar and drums. It was cut with a sapphire stylus. This is just a prototype. The finished version will have flash memory circuitry built into it so that you can plug a usb cable directly into the record and download the songs!

Cool. Its like a DIY Direct Metal Master. I wonder if you could 1 step it. hahaha. How cool would that be?

[petermontg]

just curious, how did you go about preparing the PCB copper?? did you sand it down?? or just left the cutting surface alone?

how did you get rid of that tiny layer to clean up the PCB??

[Serif]

Cool. Its like a DIY Direct Metal Master. I wonder if you could 1 step it. hahaha. How cool would that be?

I was thinking about those DMM lathes. Shouldn't we say that they are cutting metal mothers? So, that should stand for "Direct Metal Mothering."





- Gib Levler (ain't no mutha cutta)

[Aussie0zborn]

Good point. But you are cutting the master first, which may or may not be used as a mother. For large runs, a nickel mother would be made as DMM parts stain easily. I would think that today the runs are small enough to make the required one or two sets of stampers.

[Serif]

Good point. But you are cutting the master first, which may or may not be used as a mother. For large runs, a nickel mother would be made as DMM parts stain easily. I would think that today the runs are small enough to make the required one or two sets of stampers.

So short DMM runs (1-steps?) involve only mother cuts, but to make multiple sets of sons requires the clerk to cut a defacto grandmother disc which will be electroformed into a father...?

(If diamonds are a girl's best friend - who needs enemies (; )

- Chuck D. Spindle

[petermontg]

I thought i'd rehash this thread instead of making another

I have a chap looking for PCB Copper cuts.
Just looking for some advice,

Is copper suface pre-heated??
Is cutting angle the same as with plastics??
Is stylus heat different??

Any help/advice would be great.

Regards
Peter

[mossboss]

Copper preheated not relevant
Cutting angle zero or negative
Stylus heat not relevant
My advise instead of half speed cutting if you can do it at double speed
The best results are at around the 400 rpm but it is hard to control or do that in cutting audio so double up the speed if you can which I am sure you can

Cheers

[petermontg]

Copper preheated not relevant
Cutting angle zero or negative
Stylus heat not relevant
My advise instead of half speed cutting if you can do it at double speed
The best results are at around the 400 rpm but it is hard to control or do that in cutting audio so double up the speed if you can which I am sure you can

Cheers

Thanks chris.

I would have no way of speeding up the TT. would i induce much problems at half speed. I wouldn't have anyway of cutting unless done at half speed.

[petermontg]

Copper preheated not relevant
Cutting angle zero or negative
Stylus heat not relevant
My advise instead of half speed cutting if you can do it at double speed
The best results are at around the 400 rpm but it is hard to control or do that in cutting audio so double up the speed if you can which I am sure you can

Cheers

Thanks chris.

I would have no way of speeding up the TT. would i induce much problems at half speed. I wouldn't have anyway of cutting unless done at half speed.

Sorry, I was exhausted posting that last night It's not half speed i cut at, it's just a little below 3/4. My bad.

[andybee]

cutting angle zero?
mmmh, I have also read this, but some months ago, I took a look
at a SX-84, and the angle is even more then laquer?
There is a big electronic block in the rack, to compensate the angle
erros, must be calibrated well....
some nice neumann stuff
Maybe, the cutting angle depends on the styli ?
PVC is also cutted with 0.

[mossboss]

Perfectly correct It is set at an acute negative angle according to what stylus you are using
There are two versions and lots of different ideas about what the setting ought to be should be or is set by the individual owner user
We are talking the difference of copper plate on a perfectly flat ground stainless steel backing for professional use as against copper plated on fibreglass board that it has the surface of the moon prior to plating
It does not need to be that smooth as electronc components have quite a tolerance
So The cutter has to deal with bumps and hollows not found on "normal" masters there fore set to zero for maximum "cutting" strength
@ Montague
Dont be surprised if you dont go through styli like there is no tommorow
I would suggest you get to the local machinist shop and ask him if he can make you a few out of what is called silver steel or grind down some for you out of metal lathe tool steel
You dont want to ruin £50 styli for a £5 piece of PCB
Practice on them first than have a go with the real thing
Cheers

[petermontg]

P
Dont be surprised if you dont go through styli like there is no tommorow

You dont want to ruin £50 styli for a £5 piece of PCB

This is what has my brain saying "don't bother", without the right setup the cost of stylus alone to cut a small run will offset any profit at all, if any, it would be marginal.

With the fact that not been cut at right speed would give more time of stylus on surface and a greater chance of branding a stylus useless without the possibilties of re-sharpen.