这个估计目前精度不够高，材质不一定符合唱针的要求，只是模拟个形状而已。声音应该差别很大吧。

东京有一种婚纱公司新服务，把新人的头像用3D打印出来。

我就一直想：晚上上厕所，看见客厅里有两小人。怎么办？

3D打印说白了就是数字化制造进步到今天的新进展而已，有鼓吹者说它可改变人类，似乎太虚幻了些。
但凡说过头的东西，终究忽悠不了太久的。
我很为当前迷信3D打印的担心，虽然不否认它可能带来的变化和巨大的潜在价值。
君若不健忘，还记得十年前忽悠燃料电池汽车，多少白花花银子砸进去。今天呢？

这是打印吗？感觉跟CNC车床一样~~~立体建模，然后激光切出来。
看他的盘貌似用蜡做表面~~~没看懂~~~

AD/DA 转换之后的复制品。。。
就像名画的印刷复制品

开拓和创新精神确实值得学习. 如印刷质量能达到原版的8成以上而且还有模拟味那就了不得了. 3D打印机的A/D, D/A 转换器的精度有限, 所以她做出的唱片才11KHZ /5-6BIT. 再说了了既便精度够了, 模拟信号通过数字转换后再打印, 模拟味可能就荡然无存了.

啥时候3D打印机能打人体器官了不知道是好事还是啥事？？？！！！
科技总有一天会逆天而行的，而且已经开始了！

能看，不用搭梯子。

大家知道3D的打印机正逐渐地流行起来，这里有人用3D打印机打印了LP。很有意思。如要翻墙，请告知。

看视频，点下面连接

http://bcove.me/mqzbbzjn

The needle drops and a series of high, repetitive whines come from the album. Then a crackling sound, and a muffled guitar riff. Finally, Kurt Cobain’s voice — audible, but distant and hollow, like he is singing in a tunnel with a scarf over his mouth.

It’s about the worst version of “Smells Like Teen Spirit” you could find. But it is awesome all the same for its totally unique medium. This particular LP is part of the batch of the first records ever to be created on a 3-D printer.

“It’s surprising how much you can deform and down-sample an audio file and still recognize it,” says Amanda Ghassaei, assistant tech editor at Instructables, who printed the record, and several others, including music from the Pixies, Daft Punk, and Radiohead.

Ghassaei used a state-of-the-art Objet Connex 500 printer to generate the disc. The whole process is possible because printing resolution has finally become high enough to create the audio-laden grooves for the needle to track and amplify. For her printed records, Ghassaei sets the machine to its finest setting, 600 dpi, with 16 micron steps, about the highest quality available on the market. But it’s still far lower resolution than on a vinyl LP, by a factor of 10 or so; hence the muddled sound that results in part from the needle responding to the layering of the printed plastic. Ghassaei used an 11 Khz sampling rate — the highest the resolution would allow, around 1/4 what you get from an MP3. Even at that low of a rate, the printer’s deficiencies cut off the song’s high-range tones.

“It’s really stripped down, it’s down to the bare essentials,” she says. “It’s never going to be as good as vinyl. It’s not really set up for that. But it’s cool because you can really be creative with it.”

To create the 3-D model for the record, Ghassaei essentially reverses the process of ripping an MP3. As the groove of a record is a microscopic image of the analog audio,  she starts with the digitized waveform, using Python to take it directly from the MP3 file, and renders the shape of it into an STL wireframe using Processing, an open source tool that automates the file generation. She then uses the software to wrap it in a spiral on a 3-D 12-inch disc, varying the depth of the groove to match the waveform. Compared to a normal record, hers have increased amplitude and groove depth to account for the coarse resolution

http://www.instructables.com/id/3D-Printed-Record/

http://www.wired.com/design/2012/12/3-d-printed-record/?cid=5046254

这是打印吗？感觉跟CNC车床一样~~~立体建模，然后激光切出来。
看他的盘貌似用蜡做表面~~~没看懂~~~
hpstudio 发表于 2012-12-22 14:30

是3D打印。3D打印是热塑喷射而成。这里先用软件输入3维图形然后再在打印。这里的结果是热塑堆积而成的。

这个估计目前精度不够高，材质不一定符合唱针的要求，只是模拟个形状而已。声音应该差别很大吧。
gzhwlihui 发表于 2012-12-23 00:35

声音可在视频中听到，很差。据我知道目前好的3D打印机可做到16微亳米，0．016 mm。尽管这样，打LP还是不够的。故原始的文件要转化为11kHz的抽样率，这样声音就很糟糕了。想想CD是44。1kHz。