bILDA DAC doesn't work with ATX power supplies

[afrob]

You able to source enough current from the USB rail for that processor there and the dc/dc supply?

Although the analog circuitry is quite power hungry it turned out that USB can supply enough power (up to 2.5W) for the whole circuit.

Are other modifications like resolutions ?

The resolution is still 8 bits for X,Y,R,G,B(,I). I've also added a potentiometer for "image size". So you don't loose to much resolution when you want to scan with less then maximum size.

When we can get schematics ? and the price of the realisation is more expansive than the V1.0 ? (more harder but maybe not more expansive ?)

I will not publish the schematics for bILDA2. It wouldn't be cost efficient to homebrew this, meaning I can sell you a completed & tested one for less than you would get the parts (shipping costs to get the parts alone would be more then 30€).

If you want to build it yourself, go with bILDA1, which is not fundamentally different and still supported.

Greetings,
afrob

[eric343]

Can you give a price for BILDA2?

[afrob]

check you inbox

[eric343]

Wow!
At that price, you'll take over the market. Bilda2 + Chinese galvos = finally budget laser graphics

[eric343]

So I went back into the lab and wired the DAC board up to some bench power supplies... 5V is fine, +12V is fine, -12V seems to have a short to ground somewhere, and it doesn't look like there's a solder bridge... but it does look like I put IC4 in wrong way round. How wonderful.

(this is why I'm not an EE)

Yaaaargh.

I have a feeling that poor opamp didn't survive having its V+ and V- pins swapped.

[yaddatrance]

Eric... ya, TL074s and 84s really hate getting polarity mixed up...

Even if they survived, they'll never be the same... I've "half-way" blown too
many opamps up by flipping the polarity and not realized it until I've spent
a week chasing gremlins in circuits down until I just give up and replace
the chip...

[cynikal]

Wow!
At that price, you'll take over the market. Bilda2 + Chinese galvos = finally budget laser graphics

does anyone know if this is still being offered ? e.g. has anyone got one of these lately?

[JohnYayas]

I doubt it. If I am not mistaken, the guy who created bIlda works for JMLaser (EasyLase) now.

[mccarrot]

Bilda2 looks more like a new FB3 than a easylase.

[JohnYayas]

So does an IShow DAC.