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geekhack Projects => Making Stuff Together! => Topic started by: Binge on Wed, 01 January 2014, 14:44:16

Title: Neat surface mount DAC proto with CNC engraving
Post by: Binge on Wed, 01 January 2014, 14:44:16

Over the new year my father and I made a prototype surface mount circuit board using a CNC engraving machine.  The assembled DAC works very well and we might turn this into a small product for mobile listening. Here are some pics of the assembled prototype.

[attachimg=1]
[attachimg=2]

Ask me anything about this project or equipment, and I'll do my best to answer.

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: Photekq on Wed, 01 January 2014, 14:46:07

THAT IS SO COOL BINGE

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: SpAmRaY on Wed, 01 January 2014, 14:46:09

Whoa, that's cool!

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: Dubsgalore on Wed, 01 January 2014, 14:54:07

Sick work bro, that's awesome :)

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: HoffmanMyster on Wed, 01 January 2014, 17:06:48

That's awesome.  Looks very neat in addition to being functional.

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: Binge on Wed, 01 January 2014, 17:56:28

Just got off the phone with my pops... digipot volume controlled by cherry MX switches in the works. Thumbdrive sized package :|

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: Pacifist on Wed, 01 January 2014, 17:57:33

How much?

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: Binge on Wed, 01 January 2014, 18:00:47

Quote from: Pacifist on Wed, 01 January 2014, 17:57:33

How much?

Tough to say at this point.  I would be assembling these myself and we are looking into making cases with the engraver.  How much would you want to spend on something like this?

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: Pacifist on Wed, 01 January 2014, 19:42:57

Quote from: Binge on Wed, 01 January 2014, 18:00:47

Quote from: Pacifist on Wed, 01 January 2014, 17:57:33

How much?

Tough to say at this point.  I would be assembling these myself and we are looking into making cases with the engraver.  How much would you want to spend on something like this?

$30-$40. I don't own a DAC yet so I was thinking this is a good cheap entry level DAC

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: Binge on Wed, 01 January 2014, 22:39:11

Quote from: Pacifist on Wed, 01 January 2014, 19:42:57

Quote from: Binge on Wed, 01 January 2014, 18:00:47

Quote from: Pacifist on Wed, 01 January 2014, 17:57:33

How much?

Tough to say at this point.  I would be assembling these myself and we are looking into making cases with the engraver.  How much would you want to spend on something like this?

$30-$40. I don't own a DAC yet so I was thinking this is a good cheap entry level DAC

I still can't comment on a price, but I can tell you it matches up pretty well against the modi.  That's pretty neat considering this device can only operate in the 16 bit domain for the time-being.

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: dorkvader on Thu, 02 January 2014, 23:27:12

wow looks great! I've been interested in DIY DACs sicne the alien was relevant. I still need to finish making my AMB gamma2's

In terms of size it reminds me a lot of the grubdac (http://beezar.com/catalog/index.php?cPath=40) / skeletondac projects. Can you comment on the SNR and other features?

Title: Re: Neat surface mount DAC proto with CNC engraving
Post by: mkawa on Fri, 03 January 2014, 00:15:18

this is very close to an alien actually.