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benb 20th December 2012 11:10 PM

Making LPs with a 3D Printer
I was so tempted to post this in "Analog Source" but the audio is digitized and then printed. And no, it's not on a (relatively cheap) reprap or Makerbot, these are printed on a high-end, high-resolution printer. The video is a must-see (and maybe hear):
3D Printed Record

What's truly dissapointing is how the sampling rate and resolution are compared to MP3 instead of CD. <facepalm>

DUG 21st December 2012 12:36 AM


Perfect for Old Time Radio broadcast

I have some at 24K...sounds just like old AM tube radios.

benb 21st December 2012 01:00 AM

I went through all the pages and made a longish comment (probably my second one ever on Instructables) with all my thoughts. People who much with digital audio should know their DSP!

jlsem 21st December 2012 01:07 AM

With a signal to noise ratio of zero dB, he is farther away than two orders of magnitude from a playable record.


Melo theory 21st December 2012 02:38 AM

That takes some serious resolution and precision for the 3d printer to accomplish that.
Very cool!

jcx 21st December 2012 03:16 AM

some people don't understand that phono groove resolution challenges even the optical reading schemes like ELP or the IRENE scanner
The ELP Laser Turntable - The Laser Turntable Advantage

DUG 21st December 2012 05:18 AM


Shouldn't you warn people that the pdf is 137MB.

Pano 21st December 2012 03:44 PM

Very cool stuff! Although the audio isn't great, it's an amazing effort and fascinating to see how he got this to work, step by step. It will be interesting to see how far this can be pushed.

tvrgeek 22nd December 2012 09:29 PM

Even though this seems like a fruitless experiment, it is a model that is most useful to push the technology. IBM did not build Watson to play Jeopardy, they used that as a way to get people excited. We did not go to the moon for science, we went to win the cold war.

Pano 22nd December 2012 10:47 PM

I got a chance to meet Watson a few months ago. He was asleep....... :(

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